Cadillac 1931 Cadillac V-12 Operator's Manual

CADILLAC

OPERATOR'S

MANUAL

FILE

COPY

DO

mr

REMOVE

&

^

liMTlON NO. 370-1

lit mitring </ duplicate »/ this Mtinmil, specif} the
above number or the engine number oj the c?r.

Table

of

Contents

CHAPTER

\--Cadillac

Service

'

Cadillac-La Salle Service Stations—Service card—Service contract­Service charges—Repair parts—The owner's obligation- Lubrication—
Inspection.

CiiAFrER

II—Operation

8 1

Locks—Ignition switch lock—Gasoline gauge—Throttle control

- '

Carburetor choke control—Spark control—Starter pedal-

Oil

pressure

gauge—Ammetei—Clutch pedal—Transmission control -Coasting

Brakes—Lighting switch- -Danger

of

running engine

in

closed garage.

CHAPTER

311—Equipment 21

Windshield

and

ventilation- Windshield cleaner Adjustable seats
Cigar lighters—Tools—TIKES—Inllation pressure- Spare wheel carrier
—Spare tire carrier—Use

of

jack

in

changing tires—Changing tires

-

Tire balancing marks.

CHAPTER

IV—Lubrication 29

Lubrication schedule—Lubrication Notice—Lubrication chart-

LU­BRICANTS— Engine oil — Gear lubricant — Chassis grease—Wheel
bearing grease—Water pump grease—ENGINE LUBRICATION—Oil

I

level—Crankcase ventilating system and oil filter—Replacing engine oil.

,

CHAPTER

V—Cold

Weather Operation

36 S

PREPARING

FOR

COLD WEATHER—Anti-freezing solutions

j

Capacity

ol

cooling system—Winter lubrication-Storage battery-

Gasoline system—STARTING

THE

ENGINE—Choke button

-

Priming

the

carburetor—Position

of

throttle hand lever—Position of

spark control—Use

of

starter—Use

of

accelerator before engine is warm.

CHAPTER

VI—

General

Care

43

Storage battery—Cooling system—Gasoline filter—Temporary brake

adjustment—BODY—Care

of

finish—Care

of the

top—Cleaning

up-

holstery—Door hardware.

CHAPTER

VII—Storing Car 49 j

Engine—Storage battery—Tires—Body

and

top—Taking

car out of ,

storage.

[

CHAPTER

VIII—Specifications

and

License Data

. . • ^ i

W

CHAPTER

lbQ m,t- £.

CADILLAC

SERVICE

HPHE

owner

of a

Cadillac

car has

purchased

not

simply a line

1

piece

of

machinery, ingeniously designed

and

carefully

built—he

has

purchased a pleasant

and

dependable mode

of

transportation.

The

car

itself

is

only

one

factor

in

securing this

transportation—the

other factor

is

Cadillac Service, which

is

built

upon a standard policy, clearly defined

to the car

owner

and

guaranteeing

him

efficient

service everywhere

at

standard prices under

factory

regulation.

Cadillac-La

Salle Service Stations

Cadillac

Service extends wherever Cadillac

and

La Salle cars

are

sold. Service stations

conducted

by

Cadillac distrib-

utors

and

dealers

are

designa-

ted

as

"Authorized Cadillac-

La

Salle Service Stations"

and

are

identified

by the

exclusive

sign

illustrated

on

this page.

Wherever

this sign is displayed,

the

owner will find

an

organ-

ization

prepared

to

service

Cadillac

cars. This means prop-

er

equipment, factory trained

personnel, a stock

of

genuine

replacement

parts

and

stand-

ardized

policies

and

methods. c- , , k • ,^ ,„ , o ,.

1

rig. 1.

Authorized Cadillac-La Salle

The

car

owner's first

and sf

rvicc .statibns display this sign

at

iiic

t,di

uwnci » nisi

aim the

service entrance.

most

frequent contact with

Cadillac

Service will naturally

be in the

service station

of the

distributor

or

dealer

who

sold

him the car and who

therefore

has

the

greatest interest

at

stake

in

assuring

him

satisfaction.

[3]

CADILLAC SERVICE CARD

Th4*i.te«.r<lfy that

Mr. Joseph Brow

Nevertheless,

he

may

feel perfectly free

to

use

his car for

ex-

tended travel without depriving himself

of

the

service benefits

to which

he is

entitled

at

his

local service station.

He

will find

other Authorized Cadillac-La Salle Service Stations able

and

willing

to

render

the

same service.

Service Card

As a means

of

introduction

at

other Authorized Cadillac-

La Salle Service Stations, every purchaser

of a

Cadillac

car

is

given credentials

in

the

form

of a

Service Card. This card

is

mailed

to

him

by the

Cadillac factory immediately after

the

delivery

of the car is

reported

by the

distributor

or

dealer.

It is

supplied

in a

celluloid case,

and

is

intended

to

be

carried

in a

holder

on the car.

Upon presentation

of

this

Service Card

to any Au-

thorized Cadillac

- La

Salle

Service Station,

the car

owner

is

entitled

to

uni-

form standard service

in

accordance with

the

Cad­illac Owner Service Policy.
This Policy

is

explained

in detail

in a

certificate

issued

to

each owner

and

mailed

to him

with

his

Service Card. Briefly,

it

entitles

the

owner

to:

1.

All

adjustments, free

of all

charges, that

may

be

required

within

90

days after

the

original delivery date

(as

shown

on

the card), provided

the

mileage

of

the car

does

not

exceed 3000

and

the

adjustments

are not

made necessary

by

accident, abuse
or neglect. This includes everything except lubrication, washing
and storing.

2.

Fiee replacement

of

any

part which

has

proved

to the

Cadillac Motor

Car

Company's satisfaction

to be

defective

in

[41

ta*fc

Mwy

id

Cadillac

«ar,

EntlM No.__300j QQQ ...

i~_.CedlUaarLA_SaHe.Sales

Co-*

.. Mortonville,

N.

Y.

sfe »i,Altl« 1. XQfSQ _ andiaaniiikd tarantna

if f*OMPT7TmCli:Nf

an

d

COURTfOUS «r.i« (torn ANV
JV AOTHORUEDCAOtLLACSeUVKtSTATIOft. VnMpr.i~.i­9TP tte> af tfcta card ha •• ••» •milled to racain rank* it. ward­«1 aixa -Ilk th*

I*TH»

"I itw Standard Cadillac Sw.i»

FBIM*

aa

*' ' - 1 an tha

fcack

«( thU card.

CADILLAC MOTOR CAR COMPANY, Onraii. Mid..

ML

Fig.

2.

Tlic Service Card, when properly

signed, identifies a Cadillac owner

at

any

authorized Cadillac-La Salle service station.

material

or

work mans hip within

one

year after

the

delivery

date,

provided

the

mileage

of

the car

does

not

exceed 12,000

and

that

the

replacement

was not

made necessary

by

accident, abuse

or neglect. This includes material

and

labor.

The Service Card

is

not

transferable,

and the

no-charge service

set forth above

is

effective only while

the car

is in

the

hands

of

its original owner.

Standard Service Contract

Owners

may

be

assured

of

continuous satisfactory operation

and maintenance

of

their cars

at a predetermined, economical cost

by purchasing a Standard Service Contract.

Two

contracts

are

available covering complete lubrication

and

all

adjustments

and

repairs made necessary

by

normal wear.

The

first Contract covers

the first

12

months

or

12,000 miles

and the

second covers

the

second

12

months

or

second 12,000 miles.

The Standard Service Contract

is

based

on

Cadillac's principle

of preventive service

and

insures

the

owner

the

greatest amount

of satisfaction with

rhe

fewest possible interruptions. This

is

accomplished

by

complete lubrication

on

schedule

and

regular

inspection

to

anticipate

the

need

of

adjustment

and

repair,

eliminating

the

necessity

of

service between inspections.

The Contract

is

recognized

by all

authorized Cadillac-La Salle

service stations

in the

United States

and

Canada regardless

of

where

the

Contract

was

purchased.

The

owner

is

thus assured

of

all Contract service

due him

without additional charge wherever

he

may

travel,

the

same

as if

the

work

was

performed

by the

Service Station from which

the

Contract

was

purchased.

These Contracts

are

available

at all

Cadillac sales rooms

and

authorized service stations. Owners

are

urged

to

purchase

Standard Service Contracts

at

the

time

of

delivery

of

the new car.

Service Charges

Service work other than that described above

is

performed

by

Authorized Cadillac-La Salle Service Stations

on a flat-rate basis.

When a car

enters

the

service station,

it

is

promptly inspected

by

a tester,

who

then quotes

the

owner

an

exact price

for the

work

he finds necessary.

The

owner authorizes

the

work

at

this

price,

and

when

he

receives

his

bill, this

is the

price

he

pays.

[5]

Charges prevailing at Authorized Cadillac-La Salle Service

, .» Sta£jrpn$ are based on standard schedules furnished by the Cadillac

S'^y « Motor Car Company. These schedules call for methods and

tools approved by the same engineers who designed and built
the car, assuring the highest quality of work at the lowest
possible price. Standard Price Schedules are open to inspection
by owners at any Authorized Cadillac-La Salle Service Station.

Repair Parts

Genuine Cadillac parts, manufactured to the same rigid

specifications as the parts entering into the original assembly of

the car, are carried in stock by Authorized Cadillac-La Salle

Service Stations. They are sold at uniform prices throughout

the United States, and are not subject to the addition of hand-

ling, excise or other supplementary charges. Printed price lists,

published by the Cadillac Motor Car Company, are open to
inspection by owners at any authorized Cadillac distributor's

or dealer's establishment.

The Owner's Obligation

All of these service facilities are placed at the disposal of the
Cadillac owner, in order that his car may be a continuous source
of satisfaction and utility. This result cannot be guaranteed,
however, unless the owner fulfills certain definite obligations
himself,

as follows:

1.

To drive the car at moderate speeds for the first 500 miles.

2.

To operate the car in accordance with the instructions

contained in this manual.

3.

To check the engine oil level every 100 to 150 miles, and

add oil as often as necessary to keep the indicator at "full."

4.

To check the tire pressure at least every week, and keep
it up to the recommended pressure—40 pounds in front and rear­on cars driven at high speeds, 45 pounds in front.

5.

To add distilled water to the storage battery every 1000

[6]

miles,

and in warm weather every 500 miles, or at least every

two weeks.

6. To have the car lubricated every 1000 miles, or once a

v month, in accordance with the lubrication schedule on page 28.

I 7. To take the car to an Authorized Service Station for

inspection every 1000 miles, or at least once a month.

Lubrication

<

I The first five items above are details which do not necessarily

) warrant a visit to the service station. For lubrication, however,

the owner is urged to patronize Authorized Cadillac-La Salle

I Service Stations, because they are prepared to furnish this service

• in a manner that cannot be duplicated elsewhere. Only approved
lubricants are used, the specifications of which have been worked

j out by Cadillac engineers to give the best possible results.

Workmen who specialize on Cadillac cars know exactly where

lubrication points are located and how much lubricant to apply.
The charge for this lubrication service is only about half a cent
a mile, which includes the cost of the lubricants.

Inspection

Preventive service is a fundamental principle of Cadillac

' Service. "Preventive service" is the practice of inspecting the

car at regular intervals and making those adjustments that need

attention before the need becomes an emergency. Inspections
should be made every 1000 miles, in order to insure transporta­tion satisfaction. Authorized Cadillac-La Salle Service Stations

( will make such inspections without charge, provided no dis­I mantling of units is necessary.

| The Cadillac owner is urged to take full advantage of this,

not only while the car is new, but throughout its entire life.

i Preventive service rendered every 1,000 miles or once
i a month by an Authorized Cadillac-La Salle Service

| Station, is the surest guarantee of long life and com­' plete motoring satisfaction at the least possible

expense.

W

CHAPTER II

OPERATION

O

NE

of the first things the driver of a new car should do is

to familiarize himself with the various controls described

in the following chapter.

Locks

Each car is equipped with two each of two different keys.

The handles of one set of keys are hexagonal in shape: these

keys unlock the combination ignition switch and transmission
lock, the lock on the front door, the spare wheel carrier and thfe
battery box. The keys in the other set have oval handles: these
keys unlock the rear doors of chauffeur driven cars, the rear decks
of roadsters and coupes, and the various package compartments.

The lock number is stamped on each key, but not upon the
face of the lock. The owner should make a record of the key
numbers as soon as he takes delivery of his car, so that in the
event both keys are lost, a duplicate key can easily be obtained
from a Cadillac distributor or dealer.

The right front door can be locked from the inside to prevent
intruders from forcing their way into the car. This can be
accomplished simply by turning the key to the locked position
on the outside before entering the car. The door will then be

locked from the outside, although it can be opened from the
inside in the usual manner.

Ignition Switch

Lock

The lock in the center of the instrument panel controls both
the ignition switch and the transmission lock. When the key
is turned, the cylinder of the lock will slide out about half an

[8]

inch, turning on the ignition and unlocking the transmission
by means of a cable connection to the shifter shafts. To shut
off the ignition and lock the transmission, turn the key to the
locked position and push the lock cylinder all the way in. The
car can be locked when the transmission is in neutral or in reverse.
Do not attempt to shut off" the ignition when the transmission is
in any forward gear. Be sure to remove the key before leaving
the car.

Gasoline

Gauge

The gasoline gauge, marked "Fuel," is the small dial on the
extreme left. This gauge indicates in gallons the quantity of
fuel in the tank at the
rear of the car, and is

operated electrically by
current taken from the
ignition circuit. To
read from the gauge

the quantity of fuel
in the tank, the

ignition must be

turned

on.

Throttle

Control

The throttles of the

two carburetors are
controlled by a hand •
lever and a foot pedal or accelerator. The normal position of
the hand lever for driving the car is all the way up, to "CLOSE".
In this position the throttles of the carburetors are open just
enough to permit the engine to run at idling speed after it is
warm. For starting, however, the lever should be moved approx­imately one-fourth the way down, and should be left in this
position until the engine is warm enough to permit the lever to
be returned to the idling position without stalling the engine.

(Also see Chapter on "Cold Weather Operation.")

^ iw>iminhi

Turn on i«nirion
to re;ul "au^e

/7¾.

3. The gasoline gauge is operated elec-

trically by current iron) the ignition circuit.

M

Carburetor Choke Control

Correct use of the choke control is essential not only to quick
starting of the engine, but also to the life of the engine. The
button must be pulled our far enough in starting to provide an
explosive mixture quickly so that the battery is not unneces­sarily discharged by useless cranking. The button must also be
left out far enough during the warming-up period so that the
engine will run without missing and "popping back."

On the other hand, it should not be pulled out any further or
left out any longer than is necessary to accomplish these results,
because some of the excess liquid gasoline in the enriched mixture
does not burn and may wash off the oil on the cylinder walls,

interfering with proper lubrica­tion of the pistons. Push the but­ton all the way in as soon as this
can be done without causing

"popping back."

If the engine still retains heat
from previous running, the choke
control should not be used with-

Fig. 4. The choke button out first attempting to start the

must be held out while the . , .

starter is cranking the engine. engme on the normal mixture.

If the choke button is pulled out
for starting a hot engine the mixture may be made so rich that
starting will be impossible.

The choke button is not a priming device. It has no effect
whatever on the fuel or the fuel mixture unless the engine is
being cranked or is running under its own power. To have
any effect, the button must be pulled out and kept partly out
during the cranking operation.

[10]

Spark Control

Correct timing of the ignition in relation to the positions of

the pistons is controlled automatically by the timer-distributor,
which provides for all ordinary advancing and retarding of the
spark.

A hand control is also provided. This is the button at the left
on the instrument panel. This button should be pushed all the
way in (full advance) for starting and for all ordinary driving.
The button can be pulled partly out to retard the spark in case

of "ping" caused by carbon, heavy pulling, the use of regular
(not anti-knock) gasoline, or in case there should ever be occasion
to crank the engine by hand.

The Cadillac V-12 engine is a high compression engine and it

will perform most satisfactorily when an anti-knock fuel is used.
Regular gasoline can be used, although this may necessitate
driving with the spark slightly
retarded to avoid "ping." The -v ,/
spark should be retarded just i

'••

__^ \
to the point where the engine
"'pings"

slightly on rapid accel­eration. This slight amount of
spark knock is absolutely harm­less to the engine and is an indica­tion to the driver that the spark is

F>g y Drjve wjth spark con

.

set at the point that will give trol as far advanced as possible.

maximum power and economy. :

Carbon deposit, which accumulates with use in all engines,
also causes spark knock and in time may require retarding the
spark. Regardless of the kind of fuel or the presence of carbon,
the correct setting of the spark control at any time is at the point

where the engine "pings" slightly on rapid acceleration.

["I

Starter Pedal

The starter pedal is at the right of the accelerator. Pushing
this pedal forward brings into action the electric motor that
cranks the engine for starting. Do not push the starter pedal
when the engine is running.

The starter pedal is only one of the controls that must be ma­nipulated to start the engine. Unless there is an explosive mix-

ture in the cylinders and a spark to ignite it, it is useless to

crank the engine. The starter pedal should not be operated,

therefore, until the necessary preliminary steps have been taken.

The following, in their proper order, are the various steps that

must be performed when starting the engine:

1.

Place the throttle lever
about one - fourth the way
down from the "CLOSE" posi­tion.

2.

See that the spark con-

trol button is all the way in.

3.

Make sure that the trans­mission control lever is in

neutral.

4.

Turn on the ignition.

F/£. «. The starter pedal is only one 5 Unless the engine is Still
of the controls that must be used to °
start the engine. warm, pull out the choke

button. If the engine is still
warm, do not pull out the choke button unless the engine fails
to start on the normal mixture.

6. To start the engine, push the starter pedal forward,
releasing it as soon as the engine starts. If the engine does not
start readily, do not run the battery down by continuing to
crank the engine, but look for the trouble and correct it. (See
below for probable causes for the engine failing to start.)

7.

Push the choke button in part way as soon as the engine

[12]

stairs,

and all the wav 111 as soon as the engine is warm enough

to permit it.

8. Note whether pressure is indicated on the oil pressure

gauge ami stop the engine at once if no pressure is indicated.

9. Move the throttle lever up to the "CLOSE" position as

soon as the engine is warm enough to permit it.

In cold weather, disengage the clutch during the cranking
; operation. This relieves the starter of the necessity of turning
I the transmission gears, which are immersed in lubricant. The
J additional load is small in warm weather when the lubricant is
j thin, but in cold weather the power required to turn the gears
j through the thickened lubricant adds unnecessarily to the

j load on the starter and the battery.

What To Do If The Engine Fails To Start

If the engine does not start readily, release the starter pedal

and look for the cause.

1

i
' The ignition may not be turned on.

There may be no gasoline in the tank in the rear of the car.

There may be no gasoline in the vacuum tank on the dash.
If the fuel supply should give out on the road, so that the vacuum
tank on the dash becomes empty, it will be necessary after
refilling the tank to add gasoline to the vacuum tank.

The carburetors may be flooded by unnecessary use of the
choke when the engine is warm. To get rid of the surplus gaso­line in the cylinders open the throttle wide, and, with the
ignition turned off, hold the starter pedal down for 10 to 15

> seconds. Then return the throttle lever to the usual position
I for starting, turn on the ignition and try once more to start the
I engine.

[13]

Oil Pressure Gauge

The small dial at the left of the
clock is the oil pressure gauge.
This gauge does not indicate the
quantity of oil in the engine. It

indicates only the

pressure

under
which the oil is forced to the
engine bearings.

Fig.7. The oil gauge does not
indicate ijuantity; it only shows
the pressure under which oil is
forced to the engine bearings.

I

When the engine is not running,
the pointer on the oil pressure
gauge should remain at zero, but
as soon as the engine is started and as long as it runs, the gauge
should show pressure. If no pressure is indicated when the
engine is running, stop the engine at once and determine the 1

cause. Serious damage may be done if the engine is run without
oil pressure.

Ammeter

The ammeter shows how much current the generator is fur­nishing the battery when the motor is running and how much the
lights and ignition are drawing from the battery when the gen­erator is not charging. It does not register the current drawn by

the starting motor when starting the engine nor the total output

of the generator when the lights
are on.

The ammeter should indicate ,
on the "Charge" side most of '
the time, otherwise, more current
will be taken out of the battery

than is put into it and the battery

will eventually become fully dis-

charged, j

Fi%.

S.

The ammeter indicates

the amount of electrical current

flowing to or from the battery.

are in use, the ammeter should show "Charge" as soon as the
car is running ten or twelve miles per hour in high gear. If

the ammeter should show "Discharge" with all lights off,
either when the engine is not running or when the car is running
more than twelve miles per hour, the cause should be invest­igated.

Clutch Pedal

The clutch has two uses: First, to enable the car to be started

gradually and without jerk or jar; second, to permit shifting of

the transmission gears. The operation of the clutch is discussed

below in connection with the transmission control. Further
comment is unnecessary at this point, except the following sug-

gestions to the driver:

Do not drive with the foot resting on the clutch pedal. The
Cadillac clutch operates so easily that even the weight of the
driver's foot may unintentionally cause the clutch to slip.

Do not form the practice of disengaging the clutch whenever
the brakes are applied. Most occasions for use of the brakes
require only slowing down without stopping or even shifting

gears.

A skilled driver will not touch the clutch pedal until the
car is just about to stop or
until he is about to shift to a
lower gear. It is a mistaken
idea that applying the brakes
with the clutch engaged is
more

severe on the brake lining.

The opposite is actually the

case,

proof of which is in the
fact that in coasting down
grades, the resistance of the
engine is used to assist the
brakes in controlling the car
speed.

Ordinarily, when no lights

[H]

It will be observed in oper-

Fig.9. A good driver uses the clutch
pedal only when shifting gears or about
to stop.

[15]

m

' e?8

&l>i

tm

U3

.1»

• *

i +

$H*

;i

w

1..1

I

1 <t-

i a,

ating the clutch pedal that the pedal oilers almost no resist­ance until it has been moved about one inch. It is at this >
point that it actually begins to disengage the clutch. It is J
important that the pedal have this "lost motion." If the ­full pressure of the clutch springs is felt just as soon as
the control pedal is moved, the control rod should be read-

justed. Failure to make this adjustment will result in the

clutch slipping.

Transmission Control

The operation of the Cadillac Syncro-mesh transmission is,
in general, the same as the operation of the conventional selec­tive sliding-gear type of transmission. The positions of the i
control lever for the various speed combinations are the same t
and the directions in which the control lever is moved are the |
same. It is also necessary to disengage the clutch before moving

the control lever, the same as with the conventional transmission.

The only difference is in the manner of moving the control

lever. With the conventional transmission, it is customary when •
shifting to a higher gear to hesitate momentarily in neutral and I
then move the lever quickly to its new position. With the I

Cadillac Syncro-mesh j

transmission there is no
necessity either for the j
hesitation in neutral or
for the rapid movement ?
of the lever during the
latter part of the shift.
Instead, the movement

of

the control lever should ,

Fig.

10.

The control lever positions are be one smooth, Continu- |
the same as for the conventional type of
transmission. . ous movement. I

[161

The synchronizing principle applies to all shifts into inter-

mediate or

high;

in other words, to the following shifts:

Low to intermediate
Intermediate to high
High to intermediate

There is no synchronizing mechanism for low or reverse
gears because shifts into these gears are usually made when the
car is standing still. When shifting from neutral to low or
reverse, therefore, it may be necessary to await an instant after
disengaging the clutch, to give the gears a chance to stop
"spinning." Do not attempt to shift from intermediate to low

unless the car is standing still or moving very slowly.

If, when descending a grade at high speed, it becomes desir-

able to shift from high to intermediate in order to use the engine
as a brake, re-engage the clutch slowly after making the shift.
This will bring the engine up to speed gradually and avoid the
sudden load that would otherwise be imposed upon the clutch.

Coasting

In coasting down grades, it is recommended that the trans­mission be left in gear and the clutch engaged. With the throttle
in the idling position, the car is thus made to drive the engine,
the resistance of which assists the brakes and saves wear on the
brake lining. It must be remembered that the brakes are sub­jected to much more severe use on grades than on the level,
because gravity acts continuously, whereas on the level, the
brakes need absorb only the momentum of the car.

Ordinarily, the resistance offered by the engine, when the
transmission is in high, supplemented by moderate use of the
brakes, is sufficient to control the speed of the car. On steep

grades, however, the transmission control should be shifted to
intermediate.

[17]

Do not turn oil the ignition when coasting with the car
driving the engine. Contrary to a common impression, this
does not appreciably increase the resistance, and is likely to
cause damage to the engine. Even with the throttle closed,
some fuel is admitted to the cylinders, and if this is not burned,
it condenses on the cylinder walls and washes away the oil
which lubricates the pistons.

Brakes

The foot brakes are internal brakes of the shoe type, applied
on all four wheels through a mechanical linkage.

When applying the brakes while driving on wet asphalt streets
or slippery roads more care should be exercised and more time
should be allowed for stopping the car than is necessary on dry
pavements. The brakes should be applied gently while the

clutch is still

engaged.

The clutch should not be released until

the car has almost stopped.

Do not attempt sudden stops. Cadillac four-wheel brakes
minimize the possibility of skidding under slippery conditions,
but their effectiveness should not induce anyone to drive less
carefully.

As the brake lining wears, the pedal must be pushed farther

down to apply the brakes. Do not wait until the pedal goes all

the way to the floor board before having the brakes readjusted.

Readjustment is recommended as soon as the pedal must be

pushed down to within one inch of the floor board. A temporary
adjustment of the brakes is explained on page 46.

For parking, the brakes are operated by the hand lever at the

right of the transmission control lever.

Lighting Switch

The lighting switch control is at the upper end of the steering

column in the center of the steering wheel. The lever has four

[18]

positions, -PARKING," "OFF," "DOWN" and "UP." Turn-

ing the lever to "PARKING" turns on the front parking lamps

and the two rear lamps. Turn­ing the lever to "DOWN"
turns on the headlamp lower
beams and the two rear lamps,

while turning the lever to"UP"

turns on the headlamp upper

beams and the two rear lamps.

The instrument lamps are

controlled by the upper button

_.,,_.,... • , i at the extreme left of the instru-

Fig. )1. The lighting switch control

is at the hub of the steering wheel. ment panel.

The lamp bulbs which are used are as follows:

Lamp

Headlamps

Rear Lamps

Stop Light
Tail Light

Parking lamps

Instrument lamps
Closed car lamps
Step light

Vol tage

u

6-8

6-a\

6 8/
6-8V

6-81

6-8/

Candle-Power

21 (Two Filament)

Mazda No. 1110

15 Mazda No. 87

3 Mazda No. 63

Danger of Running Engine in Closed Garage

Every person having to do with the operation or care of a
motor car should be warned of the danger that attends running
the engine while the car is in a small closed garage.

Carbon monoxide, a deadly poisonous gas, is present in the
exhaust of all internal combustion engines. Most people are
already familiar with carbon monoxide in the form of illumin­ating gas, or in the gas produced by furnaces and stoves when
insufficient air is supplied to give complete combustion. But

[19]

illuminating gas and coal gas have an unpleasant odor, which
serves as a warning, whereas carbon monoxide, as produced in
the internal combustion engine, is colorless, tasteless and almost
odorless, so that the victim may be overcome before he is aware
of the.danger. When the engine exhausts into the open air,
the carbon monoxide is so diluted that it has no effect. It is
when the engine is run for a time in a closed room that the pro­portion of carbon monoxide in the air may increase to the point
at which continued breathing of it would be fatal. The United
States Public Health Service advises that the average automobile
engine warming up in a single car garage will give off enough
carbon monoxide in three minutes to endanger life.

Proper precaution must be taken in cold weather when the
natural tendency is to keep the garage doors and windows
closed. The practice of letting the engine warm up in a closed
garage before opening the doors is unsafe. The risk is made
greater By the fact that the enriching of the mixture by manipu­lation of the carburetor choke increases the amount of carbon
monoxide formed.

[201

CHAPTER III

EQUIPMENT

I

N

addition to the controls and instruments used in driving,

the car is equipped with various devices which are for the
convenience and comfort of the occupants, and are used only as
occasion demands. It is suggested that the driver anticipate his
use of such equipment by becoming familiar at once with the

directions contained in this chapter.

Windshield and Ventilation

Cadillac closed cars are equipped with a one-piece slanting

windshield that can be moved up and down by means of the

handle just above the windshield (Fig. 12). For the ventilation

under the cowl, the windshield should be raised not more than

one inch, so that the lower
edge of the glass is still
below the ledge over the in-

strument board. With the
windshield in this position
air is deflected into the driv­ing compartment through an
opening in the cowl just for­ward of the instrument board.

If desired, the windshield can

be raised above the level of

the ledge over the instrument
board, so that air can enter

Fig.

12.

The straight type windshield
is controlled by the handle above the
windshield.

the car directly.

Cowl ventilators are also provided on the closed cars to supple-

ment the ventilation provided by the windshield. These venti-

[21]

lators are at the sides of the cowl compartment and open toward
the rear, serving as outlets for the air entering under the wind­shield.

In warm weather, satisfactory ventilation in the front com-

partment cannot be expected unless the hood doors are open.
Ordinarily, these should be opened at the beginning of warm
weather and left open for the season. The temperature in the

front compartment can thereafter be controlled by the windshield

and ventilators.

Windshield Cleaner

The windshield cleaner consists of two wiper blades, operated
by the suction or vacuum in the intake manifold on the engine.
The cleaner is controlled by the lower button at the extreme left­hand end of the instrument board. This button, when pulled

all the way out, will cause one blade to work on each half of the
windshield, cleaning the entire glass. Pulling the button half
way out will cause both blades to operate on the left hand half
of the windshield, cleaning only the part in front of the driver.

To park both blades at the extreme left of the windshield when
they are not needed to clean the glass, pull the control button
half way out, wait until the left-hand blade travels over to meet
the right-hand blade and returns with it to the left-hand side;
then push the button all the way in.

Adjustable Seat

The front seat is adjustable on all Cadillac closed cars, except
those that are intended to be chauffeur-driven. Except on the
five passenger coupe, the entire front seat can be moved forward
or backward. This adjustment is controlled by a handle on the
center of the seat base, just above the floorboards. As the front
seat on the five-passenger coupe is divided, only the driver's
half of the seat is adjustable.

[22]

Cigar Lighter

[Push in, hold

lift out

aa^Wi"

i, - • ?,>. ':*•»

-,¾¾¾¾

}

'^- ^mw-*^

I!<KIMII;

Cordless lighters are provided
on the instrument panel and
with the smoking sets of the
various body styles. These light-

ers have a green translucent but­ton through which the glow of

the heating element may be seen
when the lighter is ready for use.
To use the lighter on the panel,
press it all the way into its
socket and hold it there until the

The current to the lighter in the

pressing the button beside the

Fig. 1). The

cigar

lighter

on

;he

instrument

panel

is of the

"pass

around"

type.

glow is seen; then lift it out.
smoking sets is turned on b\
lighter.

Tools

The tools are carried under the front scat. When putting tools
in their compartment be sure they are placed so that they do
not interfere with the front seat adjusting mechanism.

The standard tool equipment is listed below:

Hammer

Pliers

Monkey wrench

Huh cap

wrench

Large screw-driver Brace

wrench

(wood

and

disc

Small

screw-driver wheels)

Crescent

adjustable

wrench

Jack

handle

Oil can

Jack

Spark plug

wrench

Tool

bag

Starting

crank Lubrication

chart

Operator's

Manual

Tires

Inflation Pressure

For normal driving, the front and rear tires should be

inflated to a pressure of 40 lbs. Important—On cars driven
at high speeds, the front tires should be inflated to 45 lbs.

The tires should be checked at least weekly, and the pressure

should never be permitted to drop more than 5 lbs.

,1¼

•iV

[23]

Spare Wheel Carrier

To remove a spare wheel from the carrier, unlock the lock and
take it out, using the key as a handle. It may be necessary to
hold on to the lock while turning the key. Then unscrew the

clamping screw underneath the

lock, after which the large
dust shield can be removed
and the wheel taken off the
carrier.

To reinstall a spare wheel,
mount it on the carrier, place
the large dust shield in posi­tion and tighten the clamping
screw. Then snap the lock
back into place.

These instructions apply
both to spare wheel carriers
on the rear of the car and to
carriers in the front fenders.

Fig. 14. To remove a spare wheel,
unlock the lock, and remove the screw
and the dummy hub cap.

Spare Tire Carrier (Standard Wood Wheels)

To remove the spare tire
from the carrier, unlock the
lock and remove it, using the
key as a handle. It may be
necessary to hold on to the
lock while turning the key.
Unscrew the clamping screw
with the brace wrench fur­nished in the tool equipment

and remove the rim clamp,
taking care not to lose the

clamping screw. Remove the

tire with rim, by pulling it out
it off the carrier.

Fig. 15. To remove a spare tire,
unlock the lock, remove the screw and
take off the clamp.

at the bottom and then lifting

[24]

To place a tire and rim on the carrier, reverse the above order.
After tightening the clamping screw, unlock the lock and put it
into place.

Changing Tires

If an inflated tire is always carried on the spare rim or wheel,
the driver will seldom or never have to disassemble a tire from
the rim. In case of tire trouble, it is then merely necessary to

remove the rim or wheel with the flat tire and then install the
spare in its place. Illustrated directions for performing this
work on wire and on standard wood wheels are given on pages
26 and 27- Disc and demountable wood wheels are changed in
the same manner as wire wheels except that the hub caps should
not be removed.

Tire Balancing Marks

The tires are balanced to offset the weight of the valve stem.
If a tire is removed, it must be re-installed in its original position
with respect to the rim; otherwise the tire and wheel will be
unbalanced.

A

small red or black square is accordingly branded in the rubber
on the side of each tire. This mark must always be in line with
the valve stem.

[25]

,1

!

Fig. 16a. Remove the hub cap with
the wrench in the tool kit. Hub caps
are marked with arrows showing the
direction in which they screw on and
off.

Fig.

16b.

Jack up the axle until the
weight of the car is off of the wheel,
but with the tire still dragging.
Loosen the cap screws around the
wheel hub by turning them in a

counter-clockwise direction with the

wrench. Then jack the wheel up
further, remove the cap screws and
take the wheel off of the hub.

Fig.

16c.

To mount a wheel simply
sec it up on the hub and start the
cap screws by hand. Then tighten
the screws with the wrench, but do

not tighten them in rotation. After
tightening one screw, tighten the

screw directly opposite.

Fig. 16. Changing Wire Wheels

[261

tig- 17u. Jack up the wheel until
the tire clears the ground. Remove
the dust cap and clamping nut from
the valve stem. Remove the six rim

clamps, unscrewing them with the
brace wrench supplied in the tool kit.

Fig. 17b. Rotate the wheel until
the valve stem is at the top, and pull
the bottom of the rim away from the

wheel.

Fig. 17c."Then rotate the wheel
until the valve stem approaches the
bottom, when the rim and tire will roll

free from the wheel and can be removed
without lifting.

To mount a rim, rotate the wheel
until the hole for the valve stem is in
the position shown in the last illus­tration. Insert the valve stem and

rotate the wheel, which will carry the
rim with it, until the valve stem is at
th£ top. Then push the lower part of

the rim into place. Install the rim
clamps over the rim and turn the nuts
partly down. Go over the nuts again
and tighten them firmly. Install the
valve stem clamping nut and the dust
cap.

fie sure the clamping nut is tight.

(Standard Wood Wheels)

[27]

LUBRICATION SCHEDULE

CADILLAC

370

ENGINE

NO.

DATE DELIVERED

OO

NOT

WAIT

POR

SCHEDULE LUBRICATIONS

BEFORE ADDING ENGINE

OIL.

THE

OIL

LEVEL

SHOULD

BE

CHECKED EVERY MO

TO IM

MILES

ANO

OIL

ADDED

IF THE

INDICATOR BALL

IS

•

CLOW ••PULL." THIS

IS

ESPECIALLY

IM-

PORTANT

ON

CARS DRIVEN

AT

MICH SPEEDS.

N

0

z

<

w

(A

0

z
z
g

<

U

£

3

01

Q
Z

<

n

tf)

0
Z

z

0
h

<

o
5

a

3

J

PR

O

0

2

<

•

t

z
z

0

<

u

E
0
3
J

0
Z

<

f-

«•>

i

z

z
0

<

u
£

c

3

J

ADD LIQUID

TO

ADD ENGINE

OIL
AS NECESSARY
STARTER. GENERATOR AND

BRAKE PINS

AND

CONNECTIONS

DOOR HARDWARE
GREASE

GUN

WATER PUMP

CLUTCH RELEASE BEARING

AND BRAKE A SSI ST ER

•ADO WATER

TO
STORAGE BATTERY

CHECK TIRE INFLATION

DRAIN

AND

REPLACE

TEST

OIL

FILTER

TRANSMISSION—ADO LUBRICANT

RE
STI

EER1NG GEAR—ADO

ONT

BRAKE TRUNNIONS

AND

SPEEDOMETER DRIVE SHAFT

FAN

••REFILL SHOCK ABSORBERS

••REPLACE

OIL

FILTER CARTRIDGE

AND CLEAN

OIL PAN

AND SCREEN

LUBRICANT

WATER

OR

ANTI-PREC2E

ENGINE

OIL

ENGINE

OIL

ENGINE

OIL

ENGINE

OIL

CHASSIS

GREASE

WATER PUMP

GREASE

WHEEL BEARING

GREASE

Dl STILLED

WATER

ENGINE

OIL

GEAR

LUBRICANT

GEAR

LUBRICANT

GEAR

LUBRICANT

LIGHT

ENGINE

OH.

CHASSIS
GREASE

WHEEL BEARING

GREASE
CHASSIS
GREASE
CHASSIS

QREASB

SPECIAL ON.

LUBRICATION

NO. AND

MILEAGE

AT

WHICH

DUE

1

I
o

o
o
o
o
o
o
o
o
o

t

i

o
o

o
o
o
o
o
o
o

o
o

1

?

o
o
o

o
o
o
o
o
o
o

o
o
o
o

I

§

o
o

o
o
o
o
o
o

o
o
o

I

1

0

o

0

o
o
o
o
o
o

o

•

1

o
o
o
o
o

o

o

o
o
o
o
o
o
o

o
o
o
o
o
o

J

I

o
o
o

o
o
o
o
o
o

o

•

I

o
o

o
o
o
o
o
o
o
o
o

•

1

o
o
o

o
o
o
o
o
o

o

o
o
o
o

10

I

o
o

o
o
u
o
o
o
o
o
o

EVERY 12.000 MILES

II

1

o
o
o

o
o
o
o
o
o

o

11

1

o
o
u
u
o
o
o
o
o

o

o
u

o
o
o
o.
o

o

o

o

o

•IN

SUMMER INSPECT BATTERY EVERY

see

MILES

OR

AT

LEAST

EVERT t WEEKS.

•*RECOfcmFNDED BUT NOT INCLUOEO IN LUBRICATIONS 0 AND 11.
THE FOLLOWING OPERATIONS CANNOT

BE

PLACED

ON A

MILEAGE BASIS

AND ARE NOT

INCLUDED

IN

THE ABOVE SCHEDULE

THIN REAR AXLE AND TRANSMISSION LUBRICANT-AS REQUfREQ

f>OR

LOW TEMPERATURES.

DRAIN

AND

REPLACE REAR AXLE

AND

TRANSMISSION LUBRICANT—AT BEGINNING

OP

MILD WEATHER

IN SPRING.

RECORD

ON

OTHER SIDE

Fig.

18.

This

is a

fac-simile

of the

Cadillac Lubrication

Schedule

and

Record

Card.

Provision

is

made

on the

back

of the

card

for

recording

when

and

where

the

car

is

lubricated. A copy

of

this

card

can be

obtained

on

request

from

Cadillac

distributors

and

dealers.

[28]

CHAPTER

IV

LUBRICATION

Lubrication Schedule

S

YSTEMATIC

lubrication,

at

regular mileage intervals,

is the

only kind that

is

effective.

On

page

28 is a

complete lubri-

cation schedule, which,

if

faithfully followed, will insure

correct lubrication

for

each wearing surface.

The unit

of the

schedule

is

12,000 miles, which

is

divided into

twelve 1000-mile intervals. Corresponding

to

these

is a

series

of twelve consecutive groups

of

lubricating operations. When

the

car has

traveled

1000

miles,

the

points enumerated under

Lubrication

No. 1

should receive attention.

At

2000 miles,

Lubrication

No.

2 is

due,

and so on

until

at

12000 miles, Lubri-

cation

No. 12

should

be

performed.

At

13000 miles,

the

schedule

begins again with Lubrication

No.

1.

It will

be

noticed from

the

schedule that there

are

actually

only four different lubrication
operations,

but

that they

are

JttKKKKtBSBBtEKL

numbered according the

^^^^I^K^KUS^BH

various times that they come

J-^^^^H^H^E^^BHSI

A metal lubrication

tag in

HHH ^•liUailiO^Br

the shape

of the

Cadillac crest Hui^M

^¾

«>iIIIMR

mmW

is provided

on

each

new car

^MS_§Sj ^^gjgppV^

for ease

in

determining

the

fll^^l

date,

the mileage and the

^BBBI

^^

schedule number

of the

next

HBRH

j^'

lubrication

due.

This

tag is

wK^m^JM»'s-t^^^^mmm1mWM

mounted

on the

left JpH^Hsfl^BBR^HsBR^Lfl

pillar, about four inches below

:^"»MBB^B^^E^B^BB»T4^^B«

the hinge

as

shown

in the

Fig M_ This noticc

Kl|s you

when

illustration.

your

car

should

be

lubricated.

[29]

I

The driver can easily check this with the speedometer mileage
by opening the left front door a few inches. Authorized Cadillac­La Salle service stations, after performing each schedule operation,
post the number of the next operation due and the mileage at
which it is due. When the mileage recorded by the speedometer
is the same as the mileage marked on the notice, the car may be
taken to any authorized Cadillac-La Salle service station, and,
without further ordering other than specifying "schedule lubrica­tion," the car will receive the exact lubrication necessary.

Although the schedule is expressed in terms of miles, it is
intended that the car be lubricated once each month if the
mileage traveled is less than 1000 since the last lubrication
operation was performed. This lubrication work can be done
while the car is in the service station for its regular monthly or
1000-mile inspection.

Lubrication Chart

The lubrication chart (18 x 24 inches in size) which accom­panies this manual gives complete detailed instructions for
lubricating the car. All of the points which require lubrication
are designated on this chart, together with the kind of lubricant
to be used, the method of applying it and the frequency with
which it should be applied.

The operations are grouped on the chart in the same manner
as on the schedule sfrown in Fig. 18. If the car is lubricated at
an "Authorized Station," this schedule will be followed; if not,
whoever does the lubrication should follow the schedule and
chart exactly.

Lubricants

The selection of proper lubricants should be one of the first
concerns of the owner in his attention to the lubrication of the

[301

car. The lubricants must not only be of high quality, but their

i viscosity and other characteristics must be suited to the car.

t The owner is urged to consult the distributor or dealer from

whom he purchased his car in regard to the names of lubricants

J which have been tested and approved for use in the Cadillac car.

I Engine Oil

f

I The chart of engine oil recommendations given on page 32
I indicates the proper grades of oil to be used for average driving
) and for prolonged high speed driving.

Gear Lubricant

Lubricant conforming to the specifications for Gear Lubricant
must be used in the transmission, rear axle and steering gear.
It is particularly important that only recommended lubricants
be used in the transmission. Engine oil or soap greases will not
perform satisfactorily.

Lubricants conforming to these specifications may be used

without thinning during all weather, except winter weather

below temperatures of 20° above zero. Below this temperature,

thinning with kerosene is necessary, unless grease of sufficiently
low pour point is used to secure easier gear shifting and proper
lubrication of gears and bearings. See an authorized Cadillac­La Salle service station for recommendations on this lubricant.

Important: The Gear Lubricant known as "sulphurized" oil

and designated by "E. P.," following its S. A. E. classification
is not satisfactory for use in the transmission or rear axle on

Cadillac cars and should not be used in these assemblies under
any circumstances. This lubricant is injurious to bronze parts
such as are used in gear assemblies of all higher quality cars and
is particularly injurious to the synchro-mesh transmission.

Chassis Grease

Lubricant conforming to the specifications for Chassis Grease

is recommended for all chassis points fitted with grease gun con-

[31]

' '"I

IAI?^

nections. Do not use ordinary cup grease, as such greases are
not effective enough to lubricate satisfactorily over the 1000­mile interval.

Wheel Bearing Grease

Greases approved under the specifications for Wheel Bearing
Grease are suitable for lubricating the wheel bearings and the
clutch release bearing.

ENGINE OIL RECOMMENDATIONS

TYPE OF

SERVICE

AVERAGE

DRIVING

(No prolonged

high speed

driving)

PROLONGED
HIGH SPEED

DRIVING

SUMMER

All Temperatures

Above 32° F.

S. A. E.

vise.

40

or 50

WINTER

Between 32° and

15° Above

S. A. E.

vise.

20

Below 15° Above

Zero

S. A. E.

vise.

10

Ttiese oils are Hot suitable for

prolonged

high

speed

driving and if used

under such
conditions the oil level must be closely
watched^

as the rate of

consumption

will

be higher

than with

heavier

oils.

CADILLAC APPROVED 'HEAVY DUTY" OILS- j

SUMMER AND WINTER ;

These oils have an S. A. E. viscosity of 40-50-60, and arc'
required to meet certain specifications as to volatility in
order to demonstrate their fitness for prolonged high speed
driving. To make certain of using an oil approved for this;
service, consult your Cadillac distributor or dealer.

NOTE: Approved heavy duty oils vary in their suita-

bility for winter use. If an approved heavy duty oil with

|

sufficiently low cold viscosity is not available and if the car
is not kept in a heated garage, the lighter oils specified:
above for average driving must be used to avoid hard start-!

ing. In this case, be sure to watch the oil level closely as

cautioned above.

•The system used in this table to designate body or viscosity is the one recently
developed by the Society of Automotive Engineers and adopted by all oil com­panies. It takes the place of the old indefinite method of describing oils as
"Light," "Medium," "Heavy," etc. Oil should be called for by these numbers.

If a filling station attendant does not know the S. A. E. numbers of his oils, the
following grades can be substituted in emergency: S. A. E. 10, Extra Light;
S. A. E. 20, Light; S. A. E. 40, Heavy; S. A. E. 50-60, Extra Heavy.

[32]

This grease is not recommended for chassis lubrication, as
Chassis Grease is much more effective. Furthermore, Chassis
Grease or ordinary cup grease should not be used in the wheel
bearings as such lubricants do not have a sufficiently high melt­ing point to render satisfactory service.

Water Pump Grease

A water-resistant calcium soap grease is recommended for use

in the water pump grease cup. Only greases that meet the
specifications for Water Pump Grease should be used; other
greases will be dissolved into the cooling system liquid.

The owner of a Cadillac car is urged to have his car put on
schedule lubrication at an authorized Cadillac-La Salle service
station; in this way he is assured of having the proper lubricants
used for all lubricating points at the proper mileage intervals.

Engine Lubrication

The supply of oil is carried in the cast aluminum oil pan that
covers the bottom of the crankcase. The oil is circulated by a
gear pump inside of the crankcase. The pump is driven by a
vertical shaft, which is, in turn, driven by a spiral gear on the
camshaft. The oil circulated by the pump lubricates the main
and connecting rod bearings, the camshaft bearings, the cylinder
walls,

pistons and piston pins, the front end chains and the

valve mechanism.

There are a few points on-the engine that are not taken care
of in the pressure system. These are the starter, generator and
distributor oil cups, the fan and the water pump. Lubricating
instructions for these points are given in the lubrication chart.

Oil Level

The normal capacity of the oil pan is nine quarts, which fills
it to the level of the screen in the pan. When the oil pan con­tains this amount, the oil level indicator on the left-hand side

[33]

I'l^'r

a. T

ff

(I

IP'

|V J'

ih

n

4

P

r 1

h

M

of the engine (Fig. 20) shows "Full." As the oil level de­scends, the indicator drops to "Fill." Oil should be added as
soon as the indicator ball has dropped to "Fill." If the indicator

Oil tillers

Starrer oiler

Wntvr ptunp

«re;iM' I'up

Oil Jr.iin

Fig. 20. Showing the location of the oil fillers, oil level indicator, oil pan drain

plug and other lubrication features.

drops down to the flange of the crankcase, under no circum­stances should the engine be run until oil has been added.

The mileage interval at which oil must be added depends
upon individual circumstances. It is recommended that the oil
level indicator be checked every one hundred to one hundred and
fifty miles, although it is improbable that oil will be required as
frequently as this.

Crankcase Ventilating System and Oil Filter

Cadillac V-12 engines are equipped with a crankcase ventilat­ing system, which prevents contamination of the lubricating
oil from seepage vapors; and an oil filter, which removes any
dirt or solid matter from the oil.

[34]

The crankcase ventilating system is entirely automatic and
functions throughout the life of the car without requiring any
attention from the owner. The oil filter, however, gradually
becomes filled with the solid matter taken from the oil until it
becomes so clogged that it ceases to function.

As oil for lubrication of the overhead valve mechanism is

taken direct from the oil filter, it is extremely important to

replace the filter cartridge before it becomes so clogged that it
will not readily pass oil. It is therefore recommended that the
filter be tested every 2000-miles so that the cartridge can be
replaced as soon as this is necessary. This test can be made by
simply removing one of the oil filler covers and noting whether
or not oil is dripping from the rocker arm bushings while the

engine is running at idling speed. If oil does not drip from the

bushings, the cartridge must be replaced.

The lubrication schedule as followed by authorized Cadillac­La Salle service stations provides for this test as part of the regular
2000 mile lubrication. Filter cartridges should be replaced at
least every 12,000 miles. Replacement cartridges can be obtained
from Cadillac distributors and dealers.

The oil pan and screen should be removed and cleaned with
kerosene or gasoline whenever the oil filter cartridge is re­placed.

Replacing Engine Oil

Although the crankcase ventilating system and the oil filter

described in the preceding section greatly prolong the useful life
of the oil, it is recommended that the oil be drained and replaced
with fresh oil every 2000 miles.

To drain the oil, simply remove the drain plug (Fig. 20). Be

sure to reinstall the drain plug before putting in the fresh oil.

Nine quarts of oil are required to bring the oil level indicator

ball to "Full."

135]

H

CHAPTER V

COLD

WEATHER

OPERATION

OATISFACTORY

operation of the car in freezing weather depends

^-^ upon having the car prepared for cold weather and in giving
it the special attention which is required at that time. In this
chapter has been grouped all the information relating to care
and operation of the car during cold weather. It should be
reviewed just prior to the beginning of the winter season.

Preparing

for

Cold

Weather

Anti-Freezing

Solutions

The available commercial materials for preparing anti-freezing
solutions for automobile radiators are denatured alcohol, meth­anol (synthetic wood alcohol), distilled glycerine, and ethylene
glycol.

Denatured alcohol and methanol solutions are, at present, the
most generally used anti-freezing solutions. These preparations
are widely distributed, afford protection against freezing, and are
not injurious to the cooling system.

There are two principal objections to denatured alcohol and

methanol—they are lost by evaporation, and are harmful to the

car finish. Any material accidentally spilled on the finish should

be flushed off immediately with a large quantity of water.

Solutions of these materials in the radiator must be tested

periodically and sufficient methanol or alcohol should be added to
replace the loss by evaporation. Otherwise, the engine or radia­tor, or both, are likely to be damaged by freezing. Evaporation
is much more rapid on heavy runs, and the solution should be

tested more often under such circumstances.

Methanol, for aiiti-Jrceze purposes, is sold in the United States

in the correct concentration to give the same protection against
freezing as denatured alcohol. The table below may be used for
both denatured alcohol and methanol.

Lowest

Temperature

Ex-pec tcJ

10 F.

0 F.

-10 F.

—20 F.

-30 F.

Per cent

In

Volume

30

38
45
51
57

Specific <-i

1,at 60"

Ocuamrct AKi>lml

.9668
.9567
.9475

.9350
.9260

ravitv
IV) •

MdllJH,"

.972

.964
.957
.950
.944

Qts.

Alcohol

required to make

6 pals, solution

Vx

9)

A

10?

4

12

13*.,

I

Distilled glycerine and ethylene glycol solutions are, in first
cost, more expensive than alcohol, but as they are not lost by
evaporation, only water need be added to replace evaporation

' losses, except that any solution lose mechanically, by leakage,

foaming,

etc.,

must be replaced by additional new anti-freezing
solution. These solutions under ordinary conditions are not
injurious to the car finish.

! The principal objections to glycerine and ethylene glycol arc
I the tendency of these solutions to loosen the scale and iron rust

| which forms in the water passages of the cylinder block and head,

and the difficulty of securing and maintaining tight, leak proof

connections. It is absolutely necessary to thoroughly clean and

, Hush the entire cooling system before glycerine or ethylene

glycol is used.

I It is also necessary to tighten or replace the cylinder head

I

gaskets and pump packing. The cylinder head gaskets must be
kept tight to prevent the solution from leaking into the crank-

case where it might cause gumming and sticking of the moving

( parts. The pump packing must be kept tight to prevent air
\ from being drawn into the cooling system in order to avoid

I foaming and other difficulties which may result when air is
j present.

[361

!37l

Ethylene glycol, sold in the U. S. for anti-freezing purposes, is

chemically treated to overcome the principal difficulties men-

tioned in the above paragraph, and under normal operating condi­tions with tight hose connections and cylinder head gaskets
should be satisfactory for use in the cooling systems.

Glycerine or ethylene glycol should be used in accordance

with the instructions and in the proportions recommended by

the anti-freeze manufacturer.

In using a hydrometer to determine the temperature at which
a solution will freeze, the test must be made at the temperature
at which the hydrometer is calibrated. If the solution is warmer
or colder, it must be brought to this temperature or correction
must be made for the difference in temperature, otherwise large
errors may result. Freezing point hydrometers can not be used

interchangeably, a different float being required for denatured
alcohol, methanol, glycerine and ethylene glycol. In some cases
these errors may be as large as 30 degrees Fahrenheit.

Salt solutions, such as calcium or magnesium chloride, sodium

silicate, etc., honey, glucose and sugar solutions and oils are not

satisfactory for use in automobile radiators.

Capacity of Cooling System

The capacity of the cooling system is 6½ gallons when filled
to the level of the overflow pipe. The cooling system may be
filled to this level since the overflow pipe is connected to a con­denser tank which operates automatically to prevent excessive

loss of the cooling liquid.

It is important that there are no leaks in the cooling system
and that the radiator cap is turned down so that it is air tight,
to insure proper operation of the condenser.

Winter Lubrication

Lubrication of the car requires special attention in winter, not

only to insure proper lubrication of the moving parts, but to

[38]

secure the same ease of operation in starting, steering and shifting
gears as during warm weather.

The chart of engine oil recommendations on page 32 gives the
proper grade of oil to be used for cold weather driving. It will
be noted that lighter oils can be used for cold weather providing
no prolonged high speed driving is done. For prolonged high
speed driving, "Heavy duty" oils must be used. Authorized
Cadillac-La Salle Service Stations are prepared with full informa­tion on winter lubrication.

The lubricant in the transmission and rear axle should be
thinned with kerosene as soon as the weather is so cold that the
transmission gears are hard to shift. If a sufficient amount of
kerosene is added to provide for the lowest winter temperature

expected, it will not be necessary to add kerosene again there-

after during the winter. Ten per cent (a little over half a pint)

of kerosene, if added, will take care of temperatures down to ten
below zero.

There are several lubricants on the market which have a low

enough pour point so that they will not require thinning. See an
authorized Cadillac-La Salle Service Station for information on
these lubricants. If one has been regularly used, no kerosene
should be added. Thinning of such a lubricant is not only un­necessary, but defeats the purpose of using it because it would
have to be drained and replaced on return of warm weather.

Steering gear lubricant, in any case, should not be thinned as
the pressure between the worm and sector will force out the
thinned lubricant, resulting in excessive wear. A lubricant of
low enough cold test so as not to require thinning should be used.

Storage Battery

The electrical system of an automobile has much more to do

in winter than in summer. The engine is harder to crank and
must usually be cranked longer before it starts. The lights are
also used to much greater extent than during the long days of

[39]

summer. All this means that the battery must be ready for

increased demands.

It is therefore a good plan in preparing for the winter season
to see that the battery is fully charged, that the battery connec­tions are clean and tight, and that the charging rate is sufficient
to take care of the requirements of the system.

Gasoline System

The carburetors on the Cadillac engine have automatic com- •
pensation for temperature. Nevertheless it is a good plan to
have the carburetor adjustment checked when cold weather
arrives. This inspection should give special attention to the
carburetor choke control to make sure that the enriching device
is fully effective at each carburetor when the choke button is
operated.

In warm weather, a small amount of water in the gasoline has
little or no effect on the running of the engine. In freezing
weather, however, even a small amount of water may freeze

and stop the entire flow of fuel to the carburetors. One of the
things to be done in preparing for winter weather, therefore, is
to clean the gasoline filter and the sediment chambers in the
gasoline system.

Starting the Engine

Choke Button

The first difference between starting the engine in cold weather
and starting the engine in warm weather is in the greater use ot
the choke necessary in cold weather. Gasoline does not vaporize
as readily at low temperatures, and in order to supply the cylin­ders with a gaseous mixture rich enough to be ignited, the

proportion of liquid gasoline to air must be increased.

At the same time, it is important not to apply the choke more

than is necessary. The unvaporized gasoline collects on the

[40]

cylinder walls and works down past the pistons, washing off
the lubricant as it goes. Although dilution of the oil supply
with this unburned gasoline is minimized by the crankcase
ventilating system, it is best to avoid an excess of liquid gasoline
in the combustion chambers by careful and judicious use of the
choke.

The following rule should govern the use of the choke in
winter weather: Pull the choke back just as far as it is necessary
to start the engine, but as soon as the engine starts, return the
button as far as possible without causing the engine to stop or
slow down. Then push the button all the way in as soon as the
engine is warm enough to permit doing so.

Priming the Carburetors

In extremely cold weather, if the engine does not start after
cranking for a few seconds with the choke button fully applied,
release the starter pedal. Then prime the carburetors by opening
and closing the throttle once or twice rather rapidly with the
accelerator. Opening and closing the throttle operates a throttle
pump on each carburetor and raises the level of the gasoline in
the carburetors. The carburetors should never be primed in
warm weather and should not be primed unnecessarily in cold
weather. Excessive priming is likely to make starting difficult
rather than easy.

Position of Throttle Hand Lever

The correct position of the throttle hand lever for starting in
cold weather is the same as for starting under other conditions,

that is, about one-fourth the way down from the idling position.

In warm weather, however, the lever may be returned to the

idling position almost as soon as the engine is started. In cold
weather the throttle must be left slightly open until the engine
becomes warm.

[41]

Position of Spark Control

It is the practice of some drivers to retard the spark all the way

whenever starting the engine. This is the correct position if the

engine is to be cranked by hand, but if the engine is to be cranked

with the starter, the spark button should be left all the way in or
in the fully advanced position.

Use of Starter

In extremely cold weather, when the car has been standing
long enough to become thoroughly chilled, it is a good plan to
disengage the clutch during the cranking operation. If this is
not done, the starter is called upon to turn the jackshaft gears
in the transmission in addition to cranking the engine. At
ordinary temperatures, the additional energy required is neg­ligible, but in extremely cold weather, the lubricant in the
transmission offers sufficient resistance to rotation of the trans­mission gears to increase considerably the demand upon the
battery and to retard the cranking speed.

Use of Accelerator before Engine is Warm

In cold weather, after the engine has been started and before
it has run long enough to become warm, the engine cannot
deliver its normal power, and it should not be called upon to do
so.

In accelerating the engine to start the car and in accelerating
the car after the transmission is in gear, do not open the throttle
suddenly or too far. To do so is not only to invite "popping
back" in the carburetors, but to increase the amount of excess
unvaporized gasoline in the combustion chambers, both of
which results are undesirable.

1 CHAPTER VI

GENERAL

CARE

TVT° attempt has been made to include in this manual direc-

•L^

tions for making adjustments or repairs to the car. Most
Cadillac owners prefer to depend for such work on authorized
Cadillac-La Salle service stations, as these stations can invari­ably perform the work more conveniently and economically.

Every owner should, however, know how to perform the few

simple operations of general care described in this chapter.

These operations are not difficult enough to necessitate a visit

to the service station, although this work can also be done in
the service station, if desired.

I Storage Battery

The storage battery is carried in a compartment in the right­hand front fender. This compartment is enclosed by a metal
cover held down by four screws.

| The battery is filled with an acid solution from which the

water slowly evaporates, and fresh distilled water must be added

! to each of the three cells at regular intervals to bring the level

up to the bottom of the filling tubes. Distilled water should
be added at least every 1000 miles, and in warm weather, every
500 miles, or at least every two weeks. If distilled water is not
available, melted artificial ice or rain water caught in an earthen­ware receptacle may be used. Hydrant water or water that
has been in contact with metallic surfaces will cause trouble if
used. Acid must never be added to the battery.

[42]

[43]

After adding water to the storage battery in freezing weather,
the car should immediately be run far enough to mix the water
and acid solution thoroughly. If the car is parked immediately '
after adding water, the water is likely to stay on top of the acid

solution and may freeze, causing extensive damage.

As the storage battery is charged and discharged, the solution
reacts chemically with the plates of the battery, the specific
gravity of the solution changing as the reaction proceeds. The

state of charge of the battery is thus indicated by the specific
gravity of the solution. As the battery is charged, the specific
gravity of the solution increases, reaching 1.270 to 1.285 when
the battery is fully charged. The specific gravity of the solu­tion decreases as the battery is discharged. A fully discharged
battery has a specific gravity of 1.150 to

1.165.

A hydrometer is the instrument used to measure the specific
gravity of a solution. A hydrometer syringe is a hydrometer
especially designed for convenience in testing the specific gravity

of the acid solution in the storage battery. A hydrometer
syringe can be obtained at any battery service station. Be sure
and get a reliable instrument, for cheap ones may be in error as
much as 25 or 30 points.

The specific gravity of the acid solution should never be
tested immediately after adding distilled water. If the solution
is below the plates, so that it cannot be reached with the syringe,
add the necessary amount of water, then drive the car for a few

hours before taking the hydrometer reading.

Cooling System

The cooling system should be kept rilled with 6½ gallons

of
water, except in freezing weather, when a suitable anti-freezing
solution, such as those described on page 36, must be used.

[44]

The drain valve lor the cooling system is in.the water inlet

elbow at the bottom of the water pump on the right side of the

crankcase.

The cooling system should be
drained and flushed every 6000
miles.

If possible, this should
be done at a Cadillac service
station, or where there are facil­ities for reversing the How of
water through the radiator. If
this is not possible, use the fol­lowing method:

F/g. 21. The entire cooling
system can be drained by open­ing this one valve.

Run the engine until the open-

ing of the radiator shutters indi-

cates that the engine is warm.

Stop the engine and immediately open the drain valve.

After the liquid has drained off, refill the cooling system with
hot water and repeat the operation described above. If, in
draining the second time, the water is very dirty, it may be
advisable to repeat the flushing operation a third time, placing
one or two handfuls of sal-soda in through the radiator filler.
The sal-soda must not be permitted to get on the finish of the
hood or radiator. If sal-soda is used, the cooling system must
be drained and flushed again before refilling for use.

Gasoline Filter

A gasoline filter (Fig. 22) is provided at the bottom of the
vacuum tank. The filter has a glass bowl through which the
accumulation of water and sediment can be easily seen. The bowl
should be removed and the gauze screen should be cleaned as soon

[45]

as any accumulation appears in the bowl. This can be done as
follows:

First shut off the gasoline by turning clockwise the small

T-handle valves at each side of the filter. Then unscrew the

thumb nut under the bowl, after which the yoke supporting the
bowl can be swung to one side and the bowl can be removed. If
the screen does not come off with the bowl, it can be removed
by pulling it straight down.

In putting back the bowl,
make sure that it seats proper­ly against the cork gasket in
the top of the filter before
tightening the thumb screw.
Do not forget to turn the
gasoline on by opening both
valves.

be removed and cleansed regularly.

There is also a strainer in
the vacuum tank at the point

where the gasoline enters the

inner chamber. This strainer should be removed and cleaned
occasionally. It is accessible after disconnecting the feed pipe
and unscrewing the inlet elbow.

Temporary Brake Adjustment

It is recommended that all adjustments of the brakes be done
at an authorized Cadillac-La Salle service station. In an emer­gency, however, the following temporary adjustment can be
made by the driver.

Each brake is fitted with an adjusting nut on the cam lever,

as shown in Fig. 23. To tighten the brake adjustment turn all

[46]

• four adjusting nuts half a turn clockwise. These adjusting nuts
lock each sixth of a turn.

fig. 22. The gasoline filter should

F/j.

23. A temporary brake adjustment can be secured by turning the adjusting

j nut on each brake clockwise one-halt turn. The front brake is shown above at

the left, the rear brake at the right.

Body

Care of Finish

The lacquer finish of Cadillac bodies can be kept new and
lustrous with the simplest care. The car should merely be
wiped off every few days with a soft dry cloth. An occasional
polishing with some recognized lacquer polish (for sale by all
Cadillac distributors and dealers) will prove beneficial.

If the finish receives this attention at regular intervals, it
will not need to be washed, except when it. has accumulated
a considerable amount of mud or dust. When washing the car,
use

plenty of clean cold water. Do not use hot water, and do not

wash the hood while it is hot, as this will in time destroy the

luster. Do not use soap.

If a hose is used in washing, do not use a nozzle, but let the

water flow gently from the hose and flush off the dirt gradually.

A

soft wool sponge can be used to advantage in removing dirt.

After the washing is completed, squeeze the sponge as dry as

possible and pick up all water from crevices. Then thoroughly

[47]

wet a clean soft chamois, wring it as dry as possible and dry the
finish. The finish can then be rubbed with a clean soft cloth to
bring out the luster.

Care of the Top

Ordinary dust can be removed from the top with a soft dry
cloth. Grease spots, stains and dirt film can be removed by
washing with a mild, neutral soap. Rinse thoroughly with
clear water to remove all traces of the soap, then dry with a
chamois or cloth. Gasoline, naphtha, kerosene and fabric clean­ers should not be used for cleaning the top, as such preparations
are likely to dull the luster and damage the fabric, causing leaks.

(

CHAPTER VII

STORING CAR

Cleaning Upholstery

To keep the upholstery in closed cars in the best condition, it

should be cleaned thoroughly at least once a month with a

whisk broom and vacuum cleaner. Dirt and grit accumulating

in the fabric wear it out faster than use.

Spots on the upholstery may be cleaned with any good dry

cleaner but care should be taken not to apply too much. The

use

of too much or too strong a cleaner may dissolve the rubber back-

ing of plush upholstery, causing the nap to loosen. When the

cleaner has thoroughly evaporated, apply a hot Jlatiron wrappd

in a wet cloth. Steaming the fabric and rubbing lightly against
the nap will raise the nap on plush fabrics to its normal position

Door Hardware

Many owners who give careful attention to lubrication of

the

chassis do not give the same attention to the lubrication of

door
locks and hinges. If the door hardware is to operate properly,
it must be lubricated regularly. Directions for this lubrication
are included in the lubrication chart, and these directions should
be followed as faithfully as the rest of the chart.

[48]

\

TF

THE

car is not to be used for a period of several months, it

I •»• should be protected from deterioration during the period

when it is not in use by carefully preparing it for storage.

Engine

To prepare the engine for storage, proceed as follows: Run
the engine until opening of the radiator shutters indicates that
the engine is warm. This may be done by driving on the road
or by running the engine idle. In the latter case, care should be
taken that there is sufficient ventilation to avoid personal injury
from carbon monoxide poisoning. (See page 19). After the
engine is warm, place the car where it is to be stored and stop the
engine.

Remove the spark plugs. Inject two or three tablespoonfuls
of engine oil into each spark plug hole, and before replacing the
plugs,

crank the engine three or four revolutions with the
ignition switched off. This will tend to distribute the oil over
the cylinder walls. The engine should not be started again after
injecting the oil. If it is started, it will be necessary to repeat
the treatment.

Drain the cooling system.

Storage Battery

If the car is to be stored during the winter, the storage battery
j should have special treatment in order to protect it against
' freezing.

Shortly before the car is used for the last time, distilled water

should be added to bring the level of the solution up to the

[49]

bottom of the filling tubes. (See page 43.) After the water
added has had an opportunity to mix thoroughly with the acid
solution by running the car or engine, the specific gravity should
be tested with a hydrometer. If the specific gravity of the
solution is above

1.270,

there will be no danger of the acid

solution freezing. If, however, the specific gravity is below

1.270,

the battery should be removed and charged. Unless the
battery is fully charged, or nearly so, it is probable that the
acid solution will freeze and cause extensive damage.

The battery ground connection should in all cases be discon-

nected during storage, as a slight leak in the wiring will dis-

. charge the battery and lower the specific gravity to the point

where the solution may freeze.

If possible, the storage battery should be removed and charged

from an outside source every two months during the storage

period.

Tires

During the storage of the car, it is best to remove the tires

from the rims and to keep the casings and tubes in a fairly warm

atmosphere away from the light. The tubes should be inflated
slightly after the tires have been removed.

If it is not convenient to remove the tires from the car, and
the car is stored in a light place, cover the tires to protect them
from strong light, which has a deteriorating effect on rubber.

The weight of the car should not be allowed to rest on tires
during the storage period. If tires are not removed, the car
should be blocked up, so that no weight is borne by the tires.
The tires should also be partly deflated.

Body and Top

A cover should be placed over the entire car to protect it from

dust. In storing an open car, the top should be up.

j.

Taking Car out of Storage

( In putting into use again a car that has been stored, it is

; advisable, unless the storage battery has been removed and

charged at periodic intervals, to remove the battery from the
car and give it a fifty-hour charge at a four-ampere rate. If the

battery has received periodic charges, or if the specific gravity

J is above

1.200,

simply add distilled water to the proper level

I and connect the leads. If there is a greenish deposit on the

• terminals of the battery, remove this with a solution of bicar­bonate of soda (common cooking soda) and water. Do not
allow any of this solution to get into the battery.

(

Before starting the engine, drain the oil from the oil pan and

remove and clean the oil pan and screen. After reinstalling the

I oil pan, add eight quarts of fresh engine oil. Fill the cooling

system, being sure to use anti-freezing solution in freezing
weather. Remove the spark plugs and inject two or three table­spoonfuls of engine oil into each cylinder. Reinstall the spark
plugs and, with the ignition switched off, crank the engine a

, few seconds with the starter to distribute the oil over the cylin-

j der walls.
f Start the engine in the usual manner. As soon as the engine

starts,

push the choke button as far forward as possible without
causing the engine to stop or slow down materially, and then
open the throttle until the ammeter reads approximately 10

I with all lights switched off. Release the choke button entirely
' as soon as the engine is warm enough to permit it.

[50]

[51]

CHAPTER VIII

SPECIFICATIONS

AND

LICENSE DATA

Type

of

engine

12 cyl.

V-type

Diameter

of

cylinder bore 31

s in.

Length

of

stroke

4 in.

Piston displacement

368 cu. in.

Horsepower

(N. A. C. C.

rating)

46.9

Engine number

See

below

Capacity

of

gasoline tank

21

gals.

Capacity

of

engine lubricating system

9 qts.

Capacity

of

cooling system

6½

gals.

Capacity

of

transmission

3 qts.

Capacity

of

rear axle

3 qts.

Wheelbase 140-143

in.

Tires,

standard wood wheels

7-00 x 19

Tires,

demountable wheels 7-50-18

Spark plug setting 025-.028

in.

Contact point setting 018-.024

in.

_

\ 15-17

amps, cold

Generator charging rate, maximum

•) ,

o

° » i g.jQ

;inlpS

.

hot

Engine and Unit Assembly Numbers

Each Cadillac

car,

when shipped, carries

an

engine number,

which

is

also a serial number. This

is the

number

to be

used

in

rilling out license

and

insurance applications

and in

general

reference

of the car. The

engine number

is

stamped

on the

right

hand side

of the

crankcase just below

the

water inlet.

The various units, such

as the

transmission, steering gear,

etc.,

also carry unit assembly numbers. These

are

located

as

describeJ

below.

It is

important

in

ordering parts

to

give,

not

only

the

[52]

engine number

of the car, but

also

the

unit assembly number

of

the unit

to

which

the

part belongs.

Transmission number—on

the

upper left-hand edge

of the

flange

by which

the

transmission

is

bolted

to the

crankcase.

Steering

gear number

on the

steering gear housing next

to the

grease plug.

Generator

number

on the

right-hand side

of the

generator.

Starting motor number-on

the

right-hand side

of the

starter,

just below

the

switch.

Front

axle number—on

the

upper surface

of the

right-hand spring

pad, just outside

of the car

spring.

Rear

axle number—on

the

rear surface

of the

axle housing just

to

the right

of the

cover plate.

Chassis

(frame) number—on

the

flange

of the

first channel cross-

member, next

to the

left front engine support.

[53]

INDEX

A

Accelerator 9

Accelerator, use in cold weather. . . .42

Adding water to battery 49

Adjustable seats 22
Alcohol for anti-freeze 36

Ammeter 14

Anti-freeze solutions 36

Authorized service stations 3-4

D

Balancing marks on tires 25

Battery 43

Battery, preparing for storage 49

Brake adjustment 46
Brakes 18

c

Cadillac service 3-4
Carbon monoxide poisoning 19
Carburetor flooded 13
Carburetor, to prime 41
Card, service 4
Changing engine oil 33
Changing tires 25
Charging rate 14, 51
Charges for service 5
Chart, lubrication 30
Chassis grease 31
Choke button 10
Cigar lighters 23
Clutch pedal 15
Clutch, use of 15
Coasting 17
Coincidental lock 8
Cold weather lubrication 38
Cold weather operation 36
Compartment for tools 23
Contract, Service 5
Cooling system 38, 44
Crankcase ventilating system 34

D

Danger from carbon monoxide.,.... 19

Driver's seat adjustment 22

Driving speed when new 6

H

Headlamps.

I

Ignition control 11,4­Ignition switch lock *
Inflation pressure 21
Inspections i

K

Keys.

E

Eirect of Alcohol on finish 35
Engine fails to start 13
Engine lubrication 33
Engine number 52
Engine oil 31-32
Engine oil, changing 35
Engine oil, thinning 38
Engine, preparing for storage 4V
Engine, running in garage 19
Equipment 21

Filter for gasoline 45
Filter for oil 34
Flat-rate service charges 5
Flooded carburetor 1)
Flushing cooling system 4¾
Foot brakes Is

Gasoline filter 4i
Gasoline gauge V
Gasoline system, cold weather 4<'
Gear lubricant 31-19
General care 41
Glycerine for anti-freeze IT
Greases 1-

l.iccusc

data 52

Lighting switch IS

Locks 8

Locks for spare tires 24
Lubricants 30
Lubrication 6, 29
Lubrication, chart

.

30
Lubrication, cold weather 38
Lubrication, engine 33
Lubrication notice 29
Lubrication, schedule 28-29

C)

Obligations ol owner (1
Oil filler 34
Oil level 33
Oil pressure 14
l)|x:ratiun 8, 36

P

Paris,

uniform prices 5
Preventive service 7
Criming carburetor 41

R

Kcpair parts s,
Replacing engine oil 35

Replacing filler cartridge 35

S

Schedule lubrication 28-29
Scat adjustments 22
Service card 4
Service charges 5
Service contract 5
Service stations 3-4
Shifting gears 16

[54]

Spare tire carriers 24
Spark control 11, 42
Specifications 52
Specific gravity of battery 44
Starting the engine 12
Starting the engine in cold weather.40
Storage battery 43, 49
Storing car 49
Syncro-mesh transmission \6

T

Throttle control 9, 12

Tire balancing marks 25

Tire carrier 24

Tire pressure 6,2

3

Tires,

changing 25

Tires,

preparing lor storage 50
'Tools 23
'Tourists, service to 4

Transmission control Id

Transmission lock 8

u

Unit assembly numbers 52
Use ol accelerator betore engine is

warm 42

V

YcnttlittiHs 2}

w

Water pump grease 33
Wheel bearing grease 32
Windshield 21
Windshield cleaner 22
Winter lubrication 38
Winter operation 36
Wire wheel carrier 24

Copyright 1930 by

Cadillac Motor Car Company

[55]

370-110

2SKH-3-J1

Printed in U.S. A.

/93/

PRELIMINARY

SERVICE INFORMATION

SERIES 370

FILE

€OFY

DO

NOT

REMOVE

FILE COPY

DO

NOT

REMOVE

October, 1930

Service Department

CADILLAC MOTOR CAR COMPANY

DETROIT. MICHIGAN

CONTENTS

Page

Axles 3

Body 3
Brakes 4
Clutch 5
Cooling System., 6
Electrical 6

Generator 6
Horns 6
Ignition 6
Wiring Diagram 8
Starting

Motor.

9

Storage Battery 9

Wiring 10

Engine 10

Exhaust System 13
Gasoline System 13

Carburetor 13

Intake MuMer 14

Springs 15

Shock

Absorbers

15

Steering Gear 16

Adjustments 16
Gear

Complaints 17

Transmission 18

Speedometer

Pinions 18

Wheels 18

Tire Sizes 18

Copyright,

1930

Cadillac Motor Car Co.,

Detroit,

Mich.,

V S. A.

Cadillac V-12

Preliminary

Service Information

Series 370

Axles

Front Axle

The V-12 front axle is similar to the 355 but is
not interchangeable with it because the springs
used on the V-12 are 234" wide while those on the
355 are only 2" wide.

The caster on the V-12 is from 2½° to 3 Y%°, the
same as the 345 and 355, and is obtained by using a

1° wedge plate with the thick end toward the rear.

All parts of the V-12 front axle except the I-beam
and steering knuckles are interchangeable with

those on the 355 type and the same service opera­tions apply to both axles.

Rear Axle

The V-12 rear axle is the same as the 355 and is
interchangeable with it. Although the V-12 springs
are wider than those on the 355, this does not affect

the interchangeability of the housings.

The differential gear ratios are :

Nominal Actual
4-00 to 1 4.07 to 1

4.50 to 1 4.54 to 1

5.00 to 1 4.91 to 1

These ratios are the same as are now used on the

355 and the 345, and the differential carrier assem­bly is interchangeable with the 355, 345 and 340.

Body

The bodies on the V-12 are of the same construc-

tion and design as those on the Cadillac 355.

The floor boards are heat insulated by a heavy

felt mat in addition to the Celotex lining on the

••••iMfVHBaBBnc

^^^^B

Adjustable

al^^^M

^^^•STrifcerPJotej^^^H

W 1 'ill nl 1 IIIIIIII I'IIIIII

^^^^^B

^^^^^HSerrotions^^^^^^^H

To adjust the striker plate, loosen the screws and

move the plate one notch at a time.

floor boards themselves, and the dash has two layers
of heavy felt, one on each side, held in place by dash
covers.

The windshield header-board is held in place by
screws located the same as in previous models, but
concealed by the upholstery. To get at these
screws, simply take off the chromium plated strip
along the bottom of the header-board and pull out

An Ozite mat is used in addition to the Celotex
lined floor boards to insulate the body from the heat
of the engine.

the tacks holding the upholstery so that it can be
lifted away from the screw heads.

The striker plates on the steel center pillars are
adjustable. Serrations on the back of the plate
and on the pillar hold the plate firmly in position.

The cowl and front pillar are in one piece with a
heavy reinforcement welded in place at the base of
the pillar. This will eliminate the possibility of Duco
chipping at this point. At the front corners of the
roof,

the header-board, top bracket and pillar brace
are welded into one piece and are fastened in place
so that they cannot get loose.

4

Cadillac V-12 Preliminary Service Information

Brakes

The arrangement of the brakes on the V-12 is

practically the same as on the V-16.

The inside diameter of the brake drums on the
V-12 is 15" and the brake lining is 2¼^ wide, the
same as on the 355.

The brake drums are made of a special formula
gray cast-iron that is much less liable to score than
steel. This drum also dissipates the heat more
readily than the steel drum. Hycoe semi-moulded
lining is used on the V-12 as on the 355 and 345.

Brake Assister

The vacuum brake assister is the same as on the
V-16 and is fully interchangeable with it. Because
of the smaller diameter of the brakes and the lighter
weight of the V-12, however, only one intake mani­fold, the one on the left, is connected to the assister.

The brake assister is provided with a grease cup
to lubricate the operating rod bearings. This
grease cup should be turned down about three turns
and refilled every 1000 miles. Too much grease
used at this point is liable to get into the assister

housing and cause the rubber diaphragm to deteri­orate rapidly.

Brake Adjustment

The adjustment of the brakes is the same as on
the V-16. Before attempting to adjust the assister,
disconnect the "brake pull rod and the assister
operating rod from the pedal lever and check up
the brake rods and cam levers to see that they
are in proper adjustment and that the levers are
all the way back against the stops.

I Center of

clevis

hole]

After the clevis has been adjusted, make sure the

pin can be put in place in the clevis and lever without

turning the clevis.

When adjusting the brake assister the following
instructions should be followed:

1.

Adjust the clevis on the assister operating rod

so that the center of the clevis pin hole is exactly

10^"

from the flange on the front of the assister
housing when the rod is pulled all the way forward
with the piston touching the inside of the housing.

Be careful when tightening the clevis lock nut
on the operating tube to see that the clevis pin hole
lines up with the hole in the pedal lever so that the

pin will go into place easily without turning the

Yoke

BB

r»crU

Inrnr

'

Kubb"r

^^H|.

Operating

Rod

\

rJ[Valve Lever / ^|

1

Clevis

.¾ /

_^^HP0

Valve Rod Vacuum Valve

Diaphragm '

W^^B^^

1

Atmospheric Valves

This sectional view of the brake assister shows

the relation of the various parts such as valves, rods,

diaphragms, etc.

operating rod. This is important, because if the
operating rod is turned it will distort the rubber
diaphragm in the assister and cause a snapping

noise when the brakes are used.

pj/oTi

3/64 in. equals pne and one half
furns of the yoke on the rod.

I Clevis Pin h

This adjustment must be made carefully to insure

clearance between the piston and the front of the
cylinder.

2.

Adjust the valve rod so that there is A"
clearance between the valve rod yoke and the clevis
pin. This adjustment must be made with the
assister disconnected. Put the pin in place in the
clevis and after loosening the yoke lock nut on the
valve rod, turn the rod until the yoke just touches
the pin. Then remove the pin and while holding
the rod stationary, turn the yoke exactly one and
one half turns farther onto the rod. If this ad­justment is made correctly it will give the required

•ii" clearance between the yoke and the pin.

3.

Reconnect the brake assister to the pedal
lever and adjust the pedal stop screw so that the
distance from the center of the clevis pin to the

flange on the assister housing is lO^" to 10^"-

Cadillac V-12 Preliminary Service Information.

5

4.

Adjust the clevis on the pull rod so that there
is A" clearance at the front of the slot in the clevis
to permit the necessary free movement at the lower
end of the valve lever.

the pull rod adjustment by alternately depressing
and releasing the brake pedal slightly. There should
be A to YS" forward and backward movement at
the bottom of the valve lever, while the pedal lever
is stationary.

When the pedal stop screw is properly adjusted,

there should be J^ in. to % in. clearance between the

pedal and the toe board.

5.

The pull rod should be connected at the lowest
hole in the upper end of the pedal lever. Check

0

mor

REMOVE

There must be at least if in. clearance at the front
of the pull rod clevis to insure proper valve action.

Clutch

The V-12 clutch is similar to the latest V-16 type
with the heavier driving plates and new driven disc
facings, but is not interchangeable with it because
of the heavier clutch springs used on the V-16.

Circular

C«n/f Ditc [

I

fira

Type

Cap

Screw

Htadt |

The first type is the earlier V-16 clutch and the second

type is the V-12 and the later V-16 clutch.

The new facing on the driven discs, together with
the heavier driving plates and their improved heat

dissipation, will effectively prevent scoring and
warping.

The illustration on this page shows that the V-12
type clutch can be identified by the narrower lugs
on the front driving plate and by the circular center
driving plate.

It will be noted in the illustration that on the
V-12 type clutch the heads of the cap screws holding
the discs to the hub are toward the flywheel. This
is necessary with the greater thickness of this
clutch, to provide clearance between the cap screws
and the flywheel retaining studs. When installing
new driven discs in these clutches, always be sure,
therefore, to put these cap screws in place with the
heads toward the flywheel.

The bearing for the clutch release yoke has a

grease cup instead of an Alemite fitting as in the

past. This grease cup should be turned down about
three turns and refilled every 1000 miles. This will
prevent over-lubricating the yoke and injury to the

clutch, due to an excess of grease getting into the
flywheel housing and onto the clutch discs.

6 Cadillac V-12 Preliminary Service Information

Cooling System

f

The arrangement of the cooling system is similar
to that on the V-16. The capacity of the cooling
system is 6½¾ gallons. The radiator is shaped like
the V-16 but it is not interchangeable with it.

The pump is slightly smaller than that on the
V-16 because of the smaller V-12 engine, but has
ample capacity for proper circulation of water. The
pump is located in the same place as on the V-16—
just back of the right-hand carburetor—and is
lubricated by a grease cup close to the carburetor
intake pipe.

Caution—When taking up the water pump

gland nut, it should never be drawn up so tight

that the pump shaft cannot be rocked by hand.

If the packing is too tight on the pump shaft,
the springs in the laminated generator drive
are liable to twist or break.

The fan belt is adjusted in the same manner as on
the V-16. This adjustment is best checked with a
spring scale. When properly adjusted, it should
require a pull of eight to ten pounds, midway be^

tween the pulleys, to bring one side of the b

distance of 5" from the other side.

The condenser in the cooling system is of a

different shape from that on the V-16 and is

mounted farther back on the frame, on account of
the wheel carrier support and the new location for

the battery.

condenser tank is between the dust shield and

the frame on the left side of the car.

*

Eledjl&cal System

Generator

The generator is the same as the later type V-16
and is interchangeable with it. It is driven through
a laminated spring driver attached to the armature
shaft in the same manner as on the later V-16 type
engine. With this type of generator drive the

The features shown here make the high tension

circuit proof against weather and loose connections.

laminated driving springs can be replaced by simply
removing the generator. On the earlier V-16's
having the laminated drive installed through the
generator drive sprocket, it was necessary to remove
the front cover to replace the driving springs.

Horns

Two horns, similar to those on the V-16 but a
little smaller, are used on the V-12. Service opera­tions on these horns are exactly the same as on the
V-16.

Ignition System

The ignition system is similar to that on the V-16
excepting that it is arranged for a twelve cylinder
engine instead of a sixteen.

Ignition—Distributor

The distributor is similar to the V-16 type and
has the same type of automatic advance mechanism.

The pilot on the lower end of the distributor cam
shaft is longer than on the V-16 distributor and

extends down into the hollow main shaft about

\hA",

insuring proper alignment of the shafts at

all times.

(

Cadillac V-12 Preliminary Service Information

7

The distributor head is in one piece, and all high

tension terminals at the head and at the coils are
of the screw type, eliminating the possibility of
loose connections at these points. Rubber nipples
are used on all of these connections, at both the
distributor and the coils, and these nipples together
with the one piece distributor head make the entire

high tension circuit weather

proof.

The contacts at the end of the distributor rotor
are not exactly 180° apart, because of the alternate
45° and 75° firing intervals of this engine. A 45°

interval (on the crankshaft) comes after each of the
right-hand cylinders fires and a 75° interval comes
after each of the left-hand cylinders fires.

Firing Order

The cylinders are numbered in the same manner

as on the V-16, with the odd numbered cylinders
on the left-hand side and the even numbered
cylinders on the right-hand side, as shown below.

„ , R.H.— 2 4 6 8 10 12

The firing order as well as the high tension con-

nections are shown on the distributor

head.

The firing order is given on the top of the dis­tributor head as shown in the accompanying

illustration, and the numbers found there refer to
the location of the cylinders.

This firing order is: 1-4-9-8-5-2-11-10-3-6-7-12

Breaker Mechanism

The breaker cam on the V-12 has only six lobes,

of course, instead of eight as on the V-16. The

shape of this cam has been designed to give better
operation and longer life to the rubbing blocks on
the contact arms. The breaker contacts are
arranged the same as on the V-16 and operate
alternately. The right-hand arm and left-hand coil
furnish ignition for the left-hand or odd numbered
cylinders. This arm is on the stationary post while
the left-hand arm which, with the right-hand coil
furnishes ignition for the right-hand cylinders, is
carried on the adjustable plate.

The contact gap on the V-12 is .018 in. to .024 in.

The correct contact gap on the V-12 is .018" to

.024".

The condensers and breaker contacts are

interchangeable with those on the V-16.

Ignition Timing

Before attempting to time the ignition, see that
the contacts are in good condition and properly ad­justed for a gap of .018" to .024*. The distributor
should be removed from the engine and the contacts
synchronized. Synchronizing tool, 109224, for the

eight cylinder engines can be adapted to the V-12

as well as to the V-16, by marking the quadrant
properly.

The Service Man for October 15, 1930 contains a

template and full instructions for adapting this
tool.

When synchronizing the points on the V-12,
adjust the synchronizing fixture so that the right­hand or stationary contacts just separate when the
pointer is moved away from the farthest in­dicating point on the quadrant. Synchronize the
left-hand contacts so that they separate just as
the pointer passes the "12 L. H." mark, which is
37½° from the point at which the right-hand con­tacts separate. Moving the pointer still further

,'>' V <~>

/

J

Stop

Lamp

15C.RSCNo.87

Ground

on

Frame ^m

The V-12 Electrical Circuits are arranged as shown in this Wiring Diagram.

Cadillac V-12 Preliminary Service Information

9

the right-hand contacts should separate again at
the "12 R. H." mark, just below the center in­dicating point on the quadrant. This mark is 60°
from the farthest point.

The markings shown on this sketch are for the
V-12 and the V-16 as well as for the V-8 engines.

To insure accuracy in the synchronizing operation
the test lamp should be used in the same manner as
on the V-16, connecting one lamp to the ground and
the other to the binding post for the contacts being

timed.

After synchronizing the points, reinstall the
distributor and time the ignition in the same
manner as on the V-16. The IG/A marks on the

V-12 flywheel, are different, however, and do not
specify the cylinder numbers to which they apply.

Each mark is

iff*

ahead of center and in bringing
the IG/A mark for No. 1 cylinder in line with the
indicator at the timing inspection opening, turn

Q

the engine until the mark 2^2 can be seen in the

opening and No. 1 piston is coming up on the com-

pression stroke. The IG/A mark for No. 1 cylinder

is 3tt" beyond this mark. Continue to turn the

engine very carefully until this IG/A mark appears
in line with the indicator.

When timing the ignition, the distributor should

be at the fully advanced position. Be sure that the

control rod is properly adjusted so that when the

spark control button on the dash is pushed all the
way in, the rear stop screw on the distributor is at

the extreme right-hand end of its slot in the

quadrant. Loosen the set screw in the middle of
the breaker cam and turn the cam clockwise until
the right-hand contacts just separate, with the
terminal from the center of the rotor in line with
No.

1 insert on the distributor head.

Ignition Coils

The ignition coils are of the same type as those
on the V-16 but are not interchangeable with them
because of the difference in the high tension con­nections. The V-12 coils, are mounted with
their binding posts vertical instead of hori­zontal, and have their posts connected by a wire
instead of strap, as on the V-16. The connections
from these coils to the distributor are the same as

on the V-16, with the "A" or left-hand coil con-

nected to a ring contact in the distributor, while the

"B"

or right-hand coil is connected to the center

contact in the cover.

Spark Control

The manual control is the same as on the Cadillac
V-16 and is operated by a rod and rocker arm
mounted on the dash. The spark control button
on the instrument panel is held in position by a
ratchet and spring as on the 355.

To install the battery correctly, remember that the
positive binding post must always be at the front.

Spark Plugs

The spark plugs and wires are concealed by a
cover plate over the "V" between the cylinder
blocks, in the same manner as on the V-16. The
connections at the spark plugs are of the "slip-on"
type.

The same spark plugs, AC Type G-8, are used as
on the V-16. The standard spark gap for these
plugs is

.025*

to .028" on both cars.

Starting Motor

The starting motor is the same type as used on

the V-16 and is interchangeable with it.

Storage Battery

The storage battery is located between the frame
and the right-hand front fender, just in front of the
dash. The cover over the battery is held in place

by two slotted cap screws at the frame side bar

and one at the front outside corner of the cover.

The battery is an Exide type 3-LX-15-1R, of the
same capacity, 130 amp. hr. as on the V-16. The
cells in this battery are of the same size as on the
V-16 but are arranged side by side, instead of end
to end. The nut on the clamping bolt that holds
the storage battery in its support is accessible from
the outside of the battery box.

The storage battery on this car is connected in a
different manner from that on previous models,
having a laminated strap connector between the

10 Cadillac V-12 Preliminary Service Information

negative binding post and the starter cable. These
are connected together through the upper flange of
the frame at the side of the engine, as shown in the
accompanying illustration, and are insulated from
the frame by a fibre block and washers.

Because of the use of two flexible straps there is a
possibility of connecting the battery incorrectly.
To eliminate this possibility, remember that the
positive or grounded binding post should always
be toward the front of the car.

Wiring

The arrangement of the chassis wiring is shown

in the accompanying wiring diagram. These

En

The engine is a 12-cylinder "V" type engine with
the cylinder blocks mounted at 45° allowing the use
of the same type of overhead valve mechanism
which has proven so satisfactory on the V-16. It
also permits mounting the carburetors and mani-

The V-12 engine is similar to the V-16 and many

of the parts are interchangeable.

folds on the outside of each block as on the V-16
without making the hood as bulky as it would be if
the cylinders were at 60° which is the theoretically
correct angle. With the greater number of cylinders
on this engine overlapping far more than on any
8-cylinder engine, the difference in the intervals
between the power impulses is not noticeable.

The principal specifications of the V-12 engine are;
Bore 3ys"

Stroke 4"
N.

A. C. C. Rating 46.9 H. P.
Actual Brake H. P. 135 at 3400 R. P. M.
Piston Displacement 368 cu. in.

The V-12 engine is mounted in the same manner

as the V-16, with one support at each side of the
front cover, one at each side of the flywheel housing

and one at the rear of the transmission.

circuits are practically the same as on the V-16.
This diagram shows the latest hook-up of the cigar
lighter, which is now attached direct to the lead
from the ammeter instead of at the circuit breaker.

In making the connections at the ammeter, the
fuel gauge on the instrument panel and the tank
unit of the fuel gauge, make sure that the con­nections are made exactly according to the diagram,
with the smaller terminals on the smaller posts and
the larger terminals on the larger posts. These

terminals and binding posts are of different sizes
so that it will be easier to make^hese^connections
correctly. , *- .,

i'f. s

gine

DQm

. ..--"*

Engine Supports

The supports at the front cover are exactly the

same as on the V-16. The adjustment of the

support bolts should be made in the same manner
by turning the nuts down until there is no more play

in the bolts and then turning them down exactly
one and one-half turns further before putting the
cotter pins in place. The supports at the flywheel
housing are of the same design as those on the

Cadillac 355. The rear support at the ball joint
socket back of the transmission is the same as on

the V-16 and the 355.

Crankcase Ventilator

The crankcase ventilator is the same type as used
on the V-16. It is thermostatically controlled,
closing at 180° and opening at 1/0°.

The intake screen which prevents particles of
dust and dirt from entering the crankcase should

be removed for cleaning about every 6000 miles.

This screen can be lifted out after removing the
cover holding it in place.

Crankshaft, Connecting Rods and
Pistons

The crankshaft has four main bearings of the
same steel backed interchangeable type as used on

the V-16. The front and rear main bearings are

the same dimensions as on the V-16 and are inter-

changeable with them. The intermediate main

bearings are the same dimension as the center main
bearing on the V-16 and are interchangeable with it.
This interchangeability of bearings is but another

step toward reducing the actual number of parts

necessary to properly service Cadillac and La Salle
cars.

Cadillac V-12 Preliminary Service ]information 11

The crank pins each take two connecting rods
side by side, the same as on the V-16. The lubrica­tion of the connecting rod and piston pin bearings
is taken care of in exactly the same manner as on
the V-16.

The steel-back bearings for the V-12 crankshaft

are interchangeable with V-16 main bearings.

Excepting for the diameter of the piston and the
length of the piston pin, the piston and connecting
rod assembly is the same on both models, with three
compression rings above the piston pin and one oil
ring below. All service operations on the con­necting rods and pistons are the same as on the V-16
and the same precautions must be observed when
reinstalling the connecting rods on the crankshaft,
to see that the flanged side of the rods are next to
the crankshaft cheeks. Make sure the pistons are
assembled to the rods so that the piston pin lock
screw is on the same side of the rod as the flange,
as on the V-16.

The harmonic balancer on the V-12 is identically

the same as that of the later V-16 and the same

service operations apply on both models.

Cylinders

The general arrangement of the cylinders and
cylinder heads is identical with that on the V-16.
The method of attaching them to the crankcase is
the same on both cars and the service operations are
identical.

The right-hand and left-hand cylinder heads on
the V-12 are interchangeable as on the V-16 pro­vided the cover for the water and ventilator outlet
is installed at the rear. The right-hand and left­hand cylinder blocks are also interchangeable if the
plug in the oil hole leading to the valve mechanism
is installed at the front.

Manifolds

Each intake manifold is in one piece as on the

V-16 while the exhaust manifolds are in two sec­tions,

connected with an expansion joint. The
front section of the exhaust manifold also carries a
part of the intake header, the other part being cast
integrally with the intake manifold. The method
of removing and installing the manifolds is the same
as on the V-16.

Camshaft and Timing Chain

The V-12 camshaft has four bearings. These
bearings are the same dimensions as those used on
the V-16 and are interchangeable with them. The
timing chain arrangement on the V-12 is exactly
the same as on the later type V-16. The V-12

timing chain is the same width as the V-16, but is
shorter. It is a No. 766 Duplex with 112 links. The
same automatic chain adjuster is used on the V-12

as on the V-16 and the service operations on this

adjuster are identical on both cars.

With this combination wrench and screw-driver, a

complete adjustment of a valve can be made while the

engine is running without moving the

tool.

No manual adjustment is provided for the timing

chain. The generator mounting flange and the

sprocket support flange no longer have the slotted

holes as used on the first V-16 model. The auto­matic takeup will maintain proper adjustment
throughout the life of the chain. When the take­up reaches the end of its travalj it «ktkne to install
anewchain. .,, £• yQrt

Valves

*'

LtS-

&£i^

£

The valves ai|^lljg4pw or the valve mechanism
except the rocleer shafts are identically the same as
on the V-16, and are interchangeable on both cars.
All service operations on the V-12 should be per­formed in exactly the same manner as on the V-16.
The accompanying illustration shows the correct
method of adjusting the rocker arms for proper
tappet clearance. In these illustrations, the special
tool No. 109627-T is used for making these adjust­ments. This tool is a combination wrench and screw
driver and was fully described in the Service Man
for June 1.5, 1930. With this tool it is possible to
unlock the adjustment, make any necessary changes
and relock the adjustment without removing the
tool. The same general instructions for valve adjust­ments should be observed as on the V-16, using Tool

12

Cadillac V-12 Preliminary Service Information

109624 to hold the plunger down at the bottom of
the dash pot while adjusting the valves. The
clearance between the rocker arm and the valve
stem should be .030" when the plunger is held down

The adjustment lock nuts should be drawn

up tight after stopping the engine.

as described. Make all valve adjustments while

the engine is running, and then stop the engine and

tighten the lock nuts one at a time, while holding

the adjusting screw from turning by means of the

knob at the top of the tool.

Front Cover

The removal of the front cover is the same as on
the V-16. After removing the front support bolts
the rear motor support must be disconnected by-

removing the through bolts holding the rear support (
arms to the support shaft, before the front end of

the engine can be jacked up enough so that the

cover can be taken off.

As on the V-16, the harmonic balancer must also

be removed before the front cover is taken off.

The oil filter and the oil gauge are on the

left-hand side of the engine.

Lubrication

The lubricating system on the V-12 engine is

exactly the same as on the V-16 except for the

location of the oil filter. On the V-12 engine the

filter is mounted on the crankcase at the left side
of the engine, just below the carburetor. The filter
is similar to that used on the V-16, and uses the
same refill cartridge.

Cadillac V-12 Preliminary Service Information

13

Exhaust System

The arrangement of the exhaust system on the
V-12 is the same as on the V-16. The V-12 exhaust
manifolds, however, have only two sections instead

of three. These sections are connected by tight

fitting leak-proof sleeves that allow for expansion.

The exhaust pipes are connected to the muffler
by a new type of compression coupling as shown in
the accompanying illustration. As will be seen,
the studs holding the muffler to the front bracket
also hold the compression sleeve for this connection.
The nut on each side of the muffler flange and
bracket should be drawn up tight and the nuts next
to the flange on the compression sleeve should be
drawn up evenly, to compress the asbestos ring
within the joint and make the joint

leak-proof.
After drawing up these nuts, the lock nuts should
be tightened against them and locked, to pi event
the flange from loosening up.

Rubber cushions are used between the muffler

support brackets and the frame to prevent the

vibrations of the exhaust being transmitted to the
body. These rubber cushions are shown in the
accompanying illustration. The nuts on the support
bolts should be tightened only enough to partially
flatten the lockwashers. It is better to have these
nuts a little loose than too tight.

The muffler is rubber insulated from the frame

and has a compression connection at the front.

Gasoline System

ut

The general arrangement of the V-12 gasoline
system is similar to that on the V-16. An intake
muffler is used on each carburetor, however, and
there is only one vacuum tank on the V-12.

The V-12 intake mufflers are similar to those

used on the 355 and 345 but are smaller.

The vacuum pump for the fuel system is the same
as on the V-16 and is interchangeable with it. The
fuel tank at the rear of the car has a capacity of 21
gallons and the gas line from the fuel tank to the
vacuum tank is carried inside of the left-hand frame

side bar.

u

VIREMO¥L

Carburetors ~

Two carburetors are used on the V-12, the same

as on the V-16. They are the same general type as
those on the V-16, but are turned around with the
auxiliary air valves toward the dash to peimit the
installation of the intake mufflers at the rear,
where there is sufficient space without making the
hood wider.

The auxiliary air valve chamber on these car­buretors is designed differently to take care of the
intake elbow and muffler mounting. These car­buretors are not interchangeable with any other
carburetors, or with each other.

A Number 19 spray nozzle is used in each car-

buretor. The method of adjusting the carburetors
is the same as on the V-16 and is described in detail

under "Carburetor Adjustments."

Vacuum Tank

Because of the smaller piston displacement on the

V-12,

only one vacuum tank is necessary.

This vacuum tank is mounted in the center of

the dash and is of special design, having a supple­mentary chamber in the center of the lower tank

from which the fuel for the right-hand block of

cylinders is taken. The fuel for the left-hand
cylinders is taken from the main section of the lower
tank. This arrangement insures an initial supply of

14 Cadillac V-12 Preliminary Service Information

fuel to either carburetor,

in

the event that the other

carburetor should flood

and

drain

off all of its

available supply

of

gasoline.

V

The vacuum tank on the cen ter of the dasjfisX\y

of a special design. jj* \ ,

K

S t$

The fuel from the supplementary chamber n&ss%!

through

the

strainer

and

sediment bulb €fcp)the

bottom

of

the vacuum tank. The outer portion of

the tank from which fuel

is

taken

for

the left-hand

cylinders,

is fed by the

overflow from

the

supple-

mentary chamber.

This chamber acts as a sediment bulb, and on all

but

a few of the

first cars shipped, a strainer

is

provided above

it

through which the fuel must pass

to the outer portion

of

the tank.

Intake Mufflers

The intake mufflers used

on

the V-12 are

of the

same design

as

those

on the

355 and 345,

but are

smaller. As there are

no

moving parts, nor baffle

plates to become clogged on these mufflers, they re-

quire no attention

in

service.

Carburetor Adjustments

The carburetor adjustments are made

in

exactly

the same manner as on the V-16. Both carburetors

must

not

only

be

carefully adjusted

but

must

be
equalized also. To make the complete adjustment
proceed

as

follows:

Check the adjustment

of

the choke rods to make

sure that when

the

choke button

is

pulled

all the
way out, the levers on both carburetors are against
the stops.

Check the adjustment

of

the auxiliary

air

valve

after removing the intake muffler and elbow. Note

the free opening

of

the valve

to

see that

it is it" to

A" when

the

choke

is

held

all the

way on. This

must be done

at

room temperature.

Adjust

the

accelerator pedal stop screw

so

that

when

the

throttle levers

are in the

wide open

position,

and

against the stops

on the

carburetor,

the accelerator pedal rests against the screw.

The

adjustment

of

this stop screw

is

very important

because

if

the accelerator pedal

is

pushed down too

far,

it

will bend

or

break the throttle levers on the

carburetor.

Air Valve and Throttle Adjustment

The

use of

equalizing gauge, 109626,

is

recom-

mended

for

making carburetor adjustments.

It is

practically impossible

to

satisfactorily adjust

and

equalize the carburetor without this gauge.

Before adjusting the carburetor,

run the

engine

unlA

it is

thoroughly warmed

up and

disconnect

Ifthrp^SJe

rod to the

right-hand carburetor,

the brake assister vacuum line from the

and temporarily replace

the

'•screw plug in the right-hand manifold with a fitting

ftKcogft

left-ftand manifold

The equalizing gauge should be used when

adjusting the

V-12

carburetors.

to which the equalizing gauge may

be

connected.

Hang the equalizing gauge

on

one

of the

radiator
tie rods near the dash and connect the gauge to the
fitting on the intake manifolds with the longer hose
connected to the farther manifold. The gauge must
hang straight

so

that

the

mercury columns

are at

the same level when the engine is not running.

Make a preliminary adjustment

of

the air valves

and throttles

on

both carburetors

in the

same

manner

as

on the 353,

to

bring the idling speed

at

approximately 320

R. P. M.

(To determine whether

or not the

engine

is

running

at

the correct idling speed, remove the

oil

filler cap from one

of

the valve covers and hold

a

finger on one

of

the valve rocker arms

so

that

the

movements

of

the rocker arm may be counted.

At

Cadillac V-12 Preliminary Service Information

15

320 R. P. M. the valve will open forty times in
fifteen seconds.)

Make sure that the gauge hangs straight and

check the level of the mercury in the tube. When

the air valves and throttle stop screws are properly
adjusted, both columns of mercury should be at the

same height and the engine should run smoothly

at 320 R. P. M.

If the columns of mercury are not at the same
level and the engine speed is too fast, reduce the
speed by backing off the throttle stop screw on the
side on which the mercury column is the lower. If
the speed is too slow, turn the throttle stop screw
in a little on the side on which the mercury column
is higher.

If the mercury columns are at the same level and
the engine speed is too fast or too slow, adjust both
throttle stop screws, turning them exactly the same
amount to secure the correct idling speed and at the
same time keeping the mercury columns at the same
level.

Re-check the air valve adjustment on each
carburetor. (For accurate results be sure to use
the following method: turn the adjusting screw
clockwise, until the engine slows down from a rich
mixture, then turn it counter-clockwise, counting

the number of notches carefully until the engine

slows down from a lean mixture, and finally turn
the screw clockwise again just one-half the number
of notches counted.)

After this adjustment has been made on both
carburetors, recheck the idling speed, making sure
that the mercury columns are maintained at the
same level.

Adjust the right-hand throttle control rod to
exactly the right length so that the clevis pin can
be slipped into place without changing the engine
speed.

A further check should be made on the throttle

adjustment by running the engine at approxi-

mately 1000 R. P. M. and noting the mercury level
in the gauge. If the columns are not practically
level, a slight readjustment of the right-hand

throttle control rod will be necessary. Finally run

the engine again at idling speed and check the

mercury columns again. A very slight readjust­ment of the throttle control rods may be necessary

to bring them to the proper level again.

After a satisfactory adjustment of both car­buretors has been made, reconnect the brake
assister vacuum line to the left-hand intake mani­fold and install the screw plug in the right-hand

manifold.

Springs

The general arrangement of the V-12 springs is

the same as on the Cadillac 355. All of the springs

are 2*4" wide, and have metal spring covers with a
rebound clip near each end.

attached under the spring clip nuts. The available
metering pin and relief valve equipment for the
V-12 shock absorbers is as follows:

Metering Pins

Front Bumper

Front Snubber

Rear Bumper..

Rear Snubber.

Relief Valves

Front Bumper.

Front Snubber

Rear Bumper.

Rear Snubber.

Very

Soft

.26
.24
.27

.25

G
G

J

G

Soft

33

34
27
36

E

J

G

J

Std.

33
34
27
36

E
L
G
L

Hard

33
34

26
35

G
L
G
P

Very

Hard

33
38
26
37

L
P
L
P

The rear springs are directly underneath the

frame as on the 355.

The left front spring has the same reinforcement
at the front end as the Cadillac 355, and the rear
springs are directly beneath the frame.

Shock Absorbers

The shock absorber mounting on the V-12 is the

same as on the 355, with the front shock absorbers

While the standard equipment will take care of
the average requirements, special equipment to
meet individual needs will be furnished where
necessary.

Ordinarily it should not be necessary to check the
oil level in the shock absorbers more often than

every 6,000 miles. When adding oil, use only enough

to bring the level to the lower edge of the filler hole.

16 Cadillac V-12 Preliminary Service Information

Steering Gear

The V-12 steering gear is of the hour-glass worm
and sector type used on the other current models of
Cadillac, and La Salle cars, but is not interchange­able with them." This gear has an automatic
take-up for the worm and sector back-lash.
While this automatic take-up does not eliminate
entirely the need for manual adjustment of the

back-lash, it makes such frequent adjustments un-

The steering gear is of the hour-glass type with an
automatic take-up for the worm and sector back­lash.

necessary. Ordinarily it should not be necessary
to make a manual adjustment of the back-lash more

often than 20,000 or 25,000 miles. This automatic

take-up provides the same easy steering and
freedom from steering wheel nervousness through­out the entire period between adjustments. A brief
description of the automatic take-up will give the
service man a better idea of its operation, so that he
can make the necessary adjustments more satis­factorily.

The inner bushing for the sector shaft is reamed

out .004" larger than the shaft

itself,

and a spring

actuated plug below the sector keeps the worm and

sector in contact at all times. In making a manual

adjustment of the back-lash, the sector support is
moved toward the worm by means of an eccentric,
as on the earlier type gears, until the sector shaft

rests against the bottom of the bushing and all the
clearance is above the shaft. As wear takes place
between the worm and the sector, the spring and
plunger keep raising the sector until it rests against
the top of the bushing. During this period a perfect
adjustment of the back-lash is maintained so that
the steering gear is free from nervousness.

As further wear takes place it will be necessary

to readjust the eccentric to raise the sector shaft

support so that the shaft again rests against the
bottom of its bushing.

Spring pressure on the bottom of the sector is
controlled by two gaskets under the head of the
screw plug which holds the spring in place. When
the contact surfaces of the worm and sector are
new, the normal pressure of the spring would cause
hard steering. To prevent this a steel washer is
used in addition to the two gaskets at this point
when the steering gear is originally adjusted at the
factory. After the first 1000 miles the worm and
sector will have become worn sufficiently to permit
full spring pressure on the bottom of the sector, and
this steel washer should therefore be removed.

1000-Mile Inspection

The removal of the steel washer under the ad­justing plug should be made a part of the first 1000
mile inspection. To remove this steel washer, first

The automatic take-up holds the sector against the
worm throughout the period between adjustments.

unfasten the rear end of the left-hand splash pan

and unscrew the hex head plug below the adjusting
spring. Be careful not to allow the adjusting plug

to drop out also, as this would allow the lubricant

to run out of the housing. Remove and discard the
steel washer, making sure that both copper gaskets
are under the head of the plug when it is put back
and tightened up.

Steering Gear Adjustment

The adjustment of this steering gear is made in
practically the same manner as on the previous
type without the automatic feature. Before at­tempting to adjust the steering gear, however, be
sure to disconnect the steering connecting rod from
the steering gear arm and back off the screw plug
below the adjusting spring far enough to relieve all

Cadillac V-12 Preliminary Service Information

17

spring pressure on the adjusting plug. If any ad­justment of the sector shaft end-play is necessary,

it should be made in the same manner as on V-16
and 355 gears.

Adjusting Plug

Remove Steel Washer

of 7000 Miles

Screw Plug

The steel washer should be used only when the
worm and sector are new and must be removed at the
end of the Arst 1000 miles.

The method of adjusting the worm up-and down
play is the same as on the 355 and V-16. The
amount of drag on the steering wheel is different,
however, than on either of these models. The
worm adjusting nut should be tightened until it
requires a pull of 2 to 3 pounds to turn the steer-

ing wheel when the sector is well off the high spot.
Be sure to recheck the pull with the spring scale
after tightening the clamping bolt.

Although the worm and sector back-lash adjust­ment is made in a slightly different manner than
before, this adjustment is controlled by a split
eccentric, the same as on the later type V-16 gears
and the 355 gears. Turn the eccentric until it

requires more than a 3 pound pull on the spring
scale to turn the steering wheel through the high
spot of the sector and then back off the eccentric
very carefully to a point where the pull on the
spring scale is 2 to 3 pounds. When adjusted in
this manner the worm and sector are just touching
each other and there should be no perceptible back­lash between them. After tightening the lock bolt

on the eccentric, the drag on the steering wheel
should again be checked to make sure that it has

not changed.

After completing the eccentric adjustment, the

screw plug should be tightened again, making sure

that the two copper gaskets are in place under its

head, and that the steel washer originally installed

at the factory has been removed. This steel washer
is used only when the worm and sector are new.

With the plug tightened to bring the automatic
adjustment into operation again it should require
a pull of four to six pounds to turn the steering
wheel through the high spot. If the spring scale
registers more than six pounds, an additional
copper gasket should be installed under the head
of the plug to reduce the spring tension slightly.

When reconnecting the steering connecting rod

to the steering gear arm, check the length of the
rod in the usual manner to make sure that the front
wheels are exactly in the straight ahead position
when the sector is on the high spot. If necessary,
readjust the length of the steering connecting rod
in the same manner as before, by means of the inter­change of spacers.

[ Worm Up-and-down Adjustment |

I Housing Studs

Sector

End-play

Adjustment

Pivot Bolt

Lack Bolt

and Nut

I Cccentric Bushing |

The adjustments for the steering gear are the same as

on the 355 and the later V-16 types.

Steering Gear Complaints

In case of complaints on hard steering or nervous-

ness,

always check the front tires to see that they

are properly inflated.

Hard steering is more often caused by incorrectly
adjusted steering connections than by improper
steering gear adjustment. Therefore, before ad­justing the steering gear to take care of a complaint
of hard steering, be sure to check the steering

knuckles and connections to make sure that they
are perfectly free.

Steering wheel nervousness is in many cases due
to improper adjustment of the steering modulator.
In a case of this complaint, therefore, always

inspect this adjustment before attempting to adjust

the steering gear

itself.

18 Cadillac V-12 Preliminary Service Information

To check up on the steering modulator action,
jack up the front axle so that both wheels are off the
ground and turn the steering wheel to the straight

The steering modulator shackle should move
freely but the steering gear arm should be practically­stationary when the front wheel is rocked in this
manner.

ahead position. Then grasp the left front tire with
one hand at the front and the other hand at the
rear, and wiggle the wheel from right to left noting
the action of the modulator shackles and the steer­ing gear arm. Under this test the modulator shackle
should move readily but the steering gear arm
should remain practically stationary.

If any of the modulator springs are weak or
broken, a complete new set of four should be in­stalled. The nuts on the modulator spring studs
should be turned up just flush with the ends of the
studs.

If the modulator appears to be properly adjusted,
check also to see that the steel washer has been
removed from under the head of the plug, as

directed under the 1000 mile inspection.

If either of these operations do not correct the
difficulty, the steering gear should be readjusted as
directed under "Steering Gear Adjustments."

Transmission

The V-12 transmission is the same as that used on

the V-16, the 355 and the 345 and it is fully inter-

changeable with them. The transmission gear

ratios are the same on all these models and all trans­missions ordered from the Parts Division for service
will be shipped without the ball joint socket at the
rear end.

Speedometer Pinions

On a few of the first cars shipped, the 4.40 to 1
ratio was used in place of the 4.50 to 1 and the 4.75
to 1 was used in place of the 5.00 to 1. In each case
only the later type will be furnished for service.

It is always necessary to make sure when installing
the new differential carrier assembly, that the
correct speedometer drive pinion is used.

The speedometer drive pinions for the various

rear axle gear ratios on the V-12 are as follows:

Tire Size

Gear Ratio 7.00 x 19 7.50 x 18

4.00 to 1 18 18

4.40 to 1 19 19

4.50 to 1 20 20

4.75 to 1 21 21

5.00 to 1 22 21

Wheels

Wood wheels with demountable rims are standard
equipment on the V-12. 7.00 x 19 tires are used on
these wheels. Demountable wood, wire or disc

wheels are optional equipment at extra cost.

7.50 x 18 tires are used on all cars with demountable

wheel equipment.

The V-12 demountable wheels have 6" rims.

The tire inflation pressure is the same as on all
current models; 45 lbs. for the front tires and 40
lbs.

for the rear.

f|LE

f%

ftU

:^:0^

100—10-30

PRiNTEO IN U. S. A.

ENGINE

LaSalle

345

Number of Cylinders
Valve arrangement
Bore and Stroke
Engine Mounting

Number of Points of Suspension
Make
Cylinder arrangement
Cylinder Bore finish
Cylinder Head finish
Number of Cylinders Cast Enbloc
Crankcase Integral
Crankcase Material, upper half

Crankcase Material, lower half

8

LHead

3%'

x <vw

Bolts thru
rubber
3
Own
90° Vee
Honed
Cast
4
No
Silicon­Aluminum
Pressed Steel

Piston Displacement (cu in.) 353
Taxable Horse Power 36.45
Maximum Brake Horse Power at RPM 95 @ 3000

Brake Horse Power

cu.

in.

Displacement .269.

Maximum Brake Torque at RPM 225' lbs. @

1000

Maximum B.M.E.P. at RPM 97 lbs. sq. in.

@1000

Cadillac

355

1

LHead
3%"x4W
Bolt* thru

rubber

5

Own

90°Vee
Honed
Cast
4

No
Silicon­Aluminum
Pressed Steel

353

36.45
95 @ 3000

.269
225'

lbs. @
1000
97 lbs. sq. in.

©1000

Cadillac

370

__

Overhead
3^"x4*
Bolts thru
rubber
5
Own
45° Vee
Honed
Machined
6

No
Silicon­Aluminum

Pressed Steel

368

46.9
135 @ 3400

RPM
.366
250'

lbs. ©
1200
102 lbs. sq. in.
©1200

Cadillac

452

~16

Overhead
3"x4"
Bolts thru
rubber
5
Own
45° Vee
Honed
Machined
8
No
Silicon­Aluminum

Aluminum

Alloy

452

57.5
165 © 3400

RPM

.366

300'

lbs.

@
1400
102

lbs.

sq.

in.

@ 1400

ENGINE (Continued)

LaSalle

345

Compression Pressure at RPM
Standard Compression Ratio

Optional Compression Ratio
Engine Weight dry with Flywheel less

Transmission and Clutch all acces-

sories in place

Extra cost for optional Head

108 lbs. sq. in.
@1000

5.35 to 1

5.26 to 1

700 lbs.
None

Cadillac

355

108 lbs; sq. in.
@1000

5.35 to 1

5.26 to 1

700 lbs.
None

PISTONS AND RINGS

Piston Make
Piston Material

Piston Weight, ounces (without rings,

pin or bushing)
Number of Piston Rings used
Is lower OO Groove drilled radially?
Number of Oil Rings used per Piston
Width of Oil Ring

Number of Compression Rings
Width of Compression Rings

Own
Molybdenum
Cast Iron

24 oz.
4
Yes
2
One *A'
OneJ?'
2

One

«4

One

Own
Molybdenum

Cast Iron
24 oz.

4
Yes
2
One»/f,»
One J*'
2

Cta»*A'

OneJ?'

Cadillac

370

111 lbs. sq. in.
@1000

5.27 to 1

880 lbs.
None available

Own
Molybdenum

Cast Iron

21½ oz.

4 '
Yes
1

One*/

Two

%"•

Cadillac

452

108

lbs.

sq. in.

©1000

5.11 to 1

5.36 to 1

1080 lbs.
None

Own

Molybdenum
Cast Iron

1911/6 oz.
4

Yes

1

w

3
One *A'

TwoJ*»

PISTONS AND RINGS (Continued)

LaSalle

345

Piston Ring make
Number of Rings above Pin

Perfect oircle

3

Cadillac

355

Perfect circle
3

Cadillac

370

Perfect circle
3

CONNECTING RODS AND WRIST PINS

Wrist Pin dia.
Is Wrist Pin locked in Rod or Piston or

floating?

Wrist Pin locking method
Wrist Pin Hole finish

Connecting Rod length, center to center
Connecting Rod material

Connecting Rod Bearing material
Connecting Rod Bearing finish

Connecting Rod Bearing type of shim
Connecting Rod Bearing Poured or

Separate Poured

Crank Pin Journal diameter and length

%' W

Cadillac

452

Perfect circle
3

%"

Locked in

Piston

Lock screw

Diamond

Bored
10^'
Dropped

Forged Chrome

Molybdenum
Steel
Babbitt
Diamond
Bored

None
Poured

2^'xl^'

Locked in
Piston
Lock screw
Diamond
Bored
10M"
Dropped

Forged Chrome
Molybdenum
Steel
Babbitt
Diamond
Bored

None

Poured

2%'%\%"

Locked in
Piston

Lock screw
Diamond
Bored

9H'

Dropped
Forged Chrome

Molybdenum
Steel
Babbitt

Diamond
Bored
None

Poured

2H"*lH'

Locked in
Piston
Lock screw
Diamond
Bored

9H'

Dropped
ForgedChrome
Molybdenum

Steel

Babbitt
Diamond
Bored

None
Poured

2H"*iys'

CRANKSHAFT

Vibration Dampener used?

Front Flywheel used?
Is Crankshaft completely machined?
Vibration Dampener type

Crankshaft Counter Weights

used,

No.

of

Length of Crankshaft to Outer Ends of

front and rear Bearings
Which Main Bearing takes thrust?
Main Bearing material

Main Bearing, No.

of
Main Bearing, Interchangeable?
No. 1 Main Bearing dia. and length
No. 2 Main Bearing dia. and length
No. 3 Main Bearing dia. and length
No. 4 Main Bearing dia. and length
No. 5 Main Bearing dia. and length
Crankshaft material
Crankshaft Weight

LaSalle

345

No
No

Yes

4 bolted

to

shaft
23%'

Rear
Babbitt­Bronze backed
3
Yet

2%"x\%"
2*A'x\W
2H'x2H'

No.

1045 Steel

68¾ lbs.

Cadillac

353

No
No
Yes

4 bolted

to

shaft
23%»

Rear
Babbitt­Bronze backed
3
Yes

2%'xlH'
2H"xl$i'
2H"x2W

No.

1045 Steel

68H lbs-

Cadillac

370

Yes
No
Yes

Spring con-

trolled inertia

4 Fbrged
integral

31»
No.t

Babbitt

Steel backed
4
Yes

2H' x

%'
2H'xlH'
2H'xiH'

2Wx&Ar

No.

1045 Steel

83½ lbs.

Cadillac

452

Yes

No
Yes
Spring con­trolled inertia

4 Forged
integral

39¼ '

Center
Babbitt
Steel backed
5
Yes
25*'

x 2%*

2Wx\%"
2Wx\W

2H"xl%'

25*» x 3%'
No.

1045 Steel

130 lbs.

CAMSHAFT

Camshaft Drive
Camshaft Bearings, No.

of
Timing Chain make
Timing Chain width

Timing Chain pitch
Timing Chain adjustment
Camshaft location

Valve Action

Intake Valve make
Exhaust Valve make
Intake Valve material

Exhaust Valve material

Intake Valve clear dia.
Exhaust Valve clear dia.
Angle

of

Intake Valve Seat

LaSalle

345

Chain
4
Morse

\H'

a

Cadillac

355

Chain
4
Morse

\w

one

At top of
crankcasein
center

of

Vee

8

one
At top of
crankcasein
center

of

Vee

VALVES

Thru roller

cam slide
follower

Thru roller
cam slide
follower

Thompson- Thompson-

Rich Rich

Thompson- Thompson-

Rich Rich

Tungsten Steel Tungsten Steel

SiKchrome

Steel

IH'

30°

Cadillac

370

Chain
4

Morse

¥

Automatic
At top of
crankcasein
center

of

Vee

Roller cam fol­lower, push
rods

and
rocker arms
Thompson­Rich
Thompson­Rich
Silichrome
Steel
SiKchrome
Steel
1%'
1%'
45°

Cadillac

452

Chain'
5

Morse

IH'

W

Automatic
At top of
crankcase

in

center

of

Vee

Roller cam fol­lower, push
rods

and
rocker arms
Thompson­Rich
Thompson­Rich
Silichrome
Steel
Silichrome
Steel
1%'

»*'
45°

VALVES (Continued)

Angle of Exhuast Valve Seat
Valve Stem end style

Valve Lift, Intake and Exhaust
Are Valve Guides removable?
Operating Tappet Clearance, Intake

at 35 MPH

Operating Tappet Clearance, Exhaust
Valve Timing Intake Opens

Valve Timing Exhaust Opens
Valve Timing Intake Closes
Valve Timing Exhaust Closes

LaSalle

345

45°
Split tapered
keeper

€

.006'
.004'

9°BTC

46.5° BBC
58° ABC
7°ATC

Cadillac

355

45°
Split tapered
keeper

«%

r

Yes

.006'
.004'

9°BTC

46.5° BBC
58° ABC
7°ATC

Cadillac

370

45°
Split tapered
keeper

Yes
0
0

TDC

39° BBC
44° ABC
5°ATC

Cadillac

452

45°
Split tapered
keeper

"4t*

Yes
0
0

TDC

39° BBDC
44° ABC
5° ATDC

LUBRICATION

Lubricating System type Pressure Pressure
Oil Pressure to Main Bearings? Yes Yes
Oil Pressure to Connecting Rod Bear-

ings? Yes Yes
Oil Pressure to Wrist Pins? Yes Yes
Oil Pressure to Camshaft Bearings Yes Yes

Pressure
Yes

Yes
Yes
Yes

Pressure
Yes '

Yes

Yes
Yes

LUBRICATION (Continued)

Timing Gear Lubrication

Oil Pump type
Oil Grade recommended (S.A.E. Vise.)

Summer

Winter

Normal Oil Pressure, lbs. @ MPH
Capacity of Oil Reservoir, Qts.

Oil Pressure Gauge make
Change Oil every—
Type of Oil Dram
Oil Reservoir Gauge type
External Oil Filter make

Chassis lubrication type
Chassis lubrication make
Crankcase Ventilating System

Gasoline Tank make

Gasoline Tank Capacity, Gallons

LaSalle

345

Overflow from
pressure

regulator

Gear
40-50

20
30 lbs. @ 30

MPH
8
AC
2000 miles
Plug
Float
AC

High pressure
Alemite

Yes

Cadillac

355

Overflow from
pressure

regulator

Gear
40-50

20
30

lbs.

@ 30

MPH

8
AC
2000 miles

Plug

Float

AC

High pressure

Alemite

Yes

FUEL

Own
23 Gals.

Own

21-22 Gals.

Cadillac

370

Overflow from
pressure

regulator
Gear

40-50
20

30 lbs. @ 60
MPH
9
AC
2000 miles

Hu*

Float
AC

High pressure

Alemite
Yes—Thermo-

static control

Own
21-22 Gals.

Cadillac

452

Overflow from
pressure

regulator
Gear

40-50
20

30 lbs. @ 60
MPH

10
AC
2000 miles

H"*

Float

AC

High pressure

Alemite

Yes—Thermo-

static control

Own

25 Gals.

FUEL (Continued)

Fuel Feed type

Fuel Feed make

Gasoline Filter make
Carburetor make
Carburetor size
Carburetor type
Intake Mixture heated, how?

Heat adjustment
Carburetor Muffler make
Exhaust Pipe dia.
Muffler make
Manifolds: Intake—

Exhaust—

Cooling Circulation, type
Water Pump type

LaSalle

345

Vacuum Tank
and Auxiliary
Pump
Stewart-Warner
Vac. Tank and
own Pump
Gascolator
Own
2'
Air valve
Manifold
Header
Automatic
AC

2H'

Oldberg

2-2 Port Cast
Iron IH'

2-4 Port Cast
Iron"Y"
Connection

Cadillac

355

Vacuum Tank
and Auxiliary
Pump
Stewart-Warner
Vac. Tank and
own Pump
Gascolator
Own
2'
Air valve

Manifold
Header
Automatic

AC

2H'

Oldberg

2-2 Port Cast

Ironl^*

2-4 Port Cast

Iron "Y"

Connection

Cadillac

370

Cadillac

452

COOLING

Vacuum Tank
and Auxiliary
Pump
Stewart-Warner
Vac. Tank and
own Pump
Gascolator
Own
2-1H'
Air valve
Exhaust
hot-spot
None
AC

2H'

Oldberg
2-1%*

3 Port
Cast
Aluminum
2-2 Piece 6
Port Cast Iron

Vacuum Tank

and Auxiliary
Pump
Stewart-War'r

Vac. Tank and

own Pump

Gascolator

Own

Air valve

Exhaust
hot-spot

None

None

2^'

Oldberg

2-1%'

4 Port

Cast
Aluminum

2-3 Piece 8

Port Cast Iron

Pump
Centrifugal

Pump
Centrifugal

Pump
Centrifugal

Pump

Centrifugal

COOLING (Continued)

Water Pump Drive
Radiator Shutter make
Radiator Shutter Control
Radiator Core type
Radiator Core make
Cooling System Capacity, Gallons
Fan make

Fan dia.

Ignition Unit make
Ignition Coil make
Distributor, Manual Advance

Distributor, Automatic Advance
Distributor Breaker Gap
Distributor Number of Contact Arms

Spark Plug Thread
Spark Plug make
Spark Plug Gap

LaSalle

345

Chain
Own

Thermostatic

Cellular
Harrison

6 Gals.
Own—Six
Blades
21'

Cadillac

355

Chain
Own
Thermostatic

Cellular

Harrison

6 Gals.

Own—Six

Blades
21'

IGNITION

Delco Remy
Delco Remy

19°
28°
.018-.022
Two—4 lobe
Cam
18 mm Metric
Type G 10 AC

.025-.028

Delco Remy
Delco Remy

19°
28°

.018-.022
Two—4 lobe
Cam

18 mm Metric
Type G 10 AC
.025-.028

Cadillac

370

Chain

Own

Thermostatic

Cellular

Harrison

6½ Gals.
Own—Six

Blades

21'

Delco Remy

Delco Remy

14°

30°

.018-.024
Two—6 lobe
Cam

18 mm Metric
Type G 10 AC
.025-.028

Cadillac

452

Chain
Own
Automatic
Cellular
Harrison
7 Gals.
Own—Six
Blades
21'

Delco Remy
Delco Remy

9°
32°
.015-.020
Two—8 lobe
Cam
18 mm Metric

Type G 10 AC

.025-.028

Battery make

Battery Capacity, Ampere Hours

Battery Voltage
Battery, which Terminal is Grounded
Battery Case
Battery location

Candle Power of Headlights
Candle Power of Fender lights
Candle Power of Tail lights
Candle Power of Stop lights
Candle Power of Dash lights
No.

of Tail lights

No.

of Stop lights
Are double Filament Bulbs used?
How are headlights dimmed?

Headlight reflector type

BATTERY

LaSalle

345

Delco
120
6
Positive
Moulded
composition
Under Rt. Fr.
Seat

Cadillac

355

Delco
120
6
Positive
Moulded
composition
Under Rt. Fr.

Seat

LAMPS

21 Mazda
3 Mazda
3 Mazda
IS Mazda
3 Mazda
1
1
Yes
Depressed
beam
Parabolic

21 Mazda
3 Mazda
3 Mazda
15 Mazda
3 Mazda

2

2
Yes
Depressed

beam
Parabolic

Cadillac

370

Exide

130
6
Positive

Moulded
composition

In Rt. Fr.
Fender

21 Mazda

3 Mazda

3 Mazda

15 Mazda

3 Mazda
2
2
Yes
Depressed
beam

Parabolic

Cadillac

452

Exide

130
6
Positive
Moulded
composition
In Rt. Dust
Shield

21 Mazda

3 Mazda
3 Mazda
15 Mazda
3 Mazda
2
2
Yes
Depressed

beam

Parabolic

LAMPS (Continued)

Are Tail and Dash lights in Series?

Horn type

Horn make

No.

of Horns used

Generator make
Generator Driven by

Generator Voltage Regulation, type of
Generator Thermostat Opening tem-

perature

Cutout Relay make

Voltage at Cutout closing
Car speed at Cutout closing

Generator Maximum Normal Charging

Rate, Cold

Car speed for Maximum Normal

Charging
Voltage at Maximum Normal Charging
Ratio of Generator RPM to Engine

RPM
Ammeter make

LaSalle

345

No
Vibrator

Delco Remy

1

Cadillac

355

No
Vibrator

Delco Remy
2

GENERATOR

Delco Remy

(2 Pole)
Front end
Chain

3rd brush
175°

Delco Remy

7.5 amps.
approx.

8 to 10 MPH
18 amps.

19 MPH

7.3-7.7

Volts

l^tol
AC

Delco Remy

(2 Pole)
Front end
Chain

3rd brush

175°
Delco Remy

7.5 amps.
approx.

8 to 10 MPH
18 amps.

19 MPH

7.3-7.7

Volts

l^tol
AC

Cadillac

370

No
Vibrator
Delco Remy
2

Delco Remy

(2 Pole)
Front end
Chain
3rd brush

175°
Delco Remy

7.5 amps.
approx.

8 to 10 MPH
18 amps.

28 MPH

7.3-7.7

Volts

l^tol
AC

Cadillac

452

No
Vibrator
Delco Remy
2

Delco Remy

(2 Pole)
Front end
Chain
3rd brush

175°
Delco Remy

7.5 amps.
approx.

8 to 10 MPH
18 amps.

30 MPH

7.3-7.7

Volts

AC^

1

STARTING MOTOR

LaSalle

345

Starting Motor make

Starting Motor type of drive
Flywheel Teeth integral, or Steel Ring

Gear Ratio between Starter Armature

and Flywheel

Normal Engine Cranking speed, RPM

Delco Remy

(4 Pole)
Overrunning
Clutch
Steel Ring

25 to 1 approx.

90-100 RPM

Cadillac

355

Delco Remy

(4 Pole)
Overrunning
Clutch
Steel Ring

25 to 1 approx.
90-100 RPM

CLUTCH

Clutch make Own Own

Clutch type 2 Plata 2 Plate

Clutch vibration installation or neu-

tralizer None None
Number of Clutch Driving Discs 3 3
Number of Clutch Driven Discs 2 2
Clutch operates in Oil or Dry Dry Dry
Clutch Facing inside dia. 7 * "
Clutch Facing outside dia. 10' 10*
No.

of Clutch Facings required 4 4

Total Area of Clutch Facing 226.20 sq. in. 226.20 sq. in.

Cadillac

370

Delco Remy

(6 Pole)

Overrunning

Clutch

Steel Ring

25 to 1 approx.
80 RPM

Own
2 Plate

None
3
2
Dry
7'

10»

4

Cadillac

452

Delco Remy

(6 Pole)
Overrunning
Clutch
Steel Ring

25 to 1 approx.

75 RPM

Own

2 Plate

None

3

2

Dry

7'
10»
4

226.20 sqs in. 226.20 sq. in.

CLUTCH (Continued)

Is Clutch adjustable?
Is Clutch Brake fitted?

Transmission make
Transmission location

Number of forward speeds

Gear Ratio in high, standard

5-Pass.

4-Door

Sedan
Transmission, ratio in second
Transmission, ratio in low
Transmission, ratio in reverse
Transmission Oil Capacity pounds or

quarts

Torque taken through
Drive taken through

Rear Axle make
Rear Axle type

LaSalle

345

No
No

Cadillac

355

No
No

TRANSMISSION

Own
Unit power

plant

3

4.54

1.5 to 1

2.5 to 1

3.0 to 1

3qts.
Torque tube
and radius rods
Torque tube

Own
Unit power
plant

3

4.54

1.5 to 1

2.5 to 1

3.0 to 1
3qts.

Torque tube
and radius rods
Torque tube

REAR AXLE

Own

% Floating

Own

% Floating

Cadillac

370

No

No

Own
Unit power

plant

3

4.54

1.5 to 1

2.5 to 1

3.0 to 1
3 qts.

Torque tube
and radius rods
Torque tube

Own

% Floating

Cadillac

452

No

No

Own
Unit power
plant
3

4.39

1.5 to 1

2.5 to 1

3.0 to 1

3 qts.
Torque tube
and radius rods
Torque tube

Own

M Floating

REAR AXLE (Continued)

LaSsJIe

345

Minimum road clearance under center

of axle—tires inflated
Rear Axle Oil capacity, pounds or quarts
Type of final Gearing
Gear ratio standard

5-Pass.

4-Door

Sedan
Optional Gear ratios
How is Pinion adjusted
Wheels, type, std.
Wheels, type, optional

Rim dia. std.
Rim width, std.
Rim width, wire wheels only
Tire make

Tire Size, std.
Tire Size, optional wheel equipment

7%'
3 qts.
Spiral bevel

4.54

4.07 and 4.91
Shims
Artillery
Wire, Disc,
Demountable
Wood

19'
5'
5'
U.S.

6.50 x 19

6.50 x 19 except
on seven passen­ger closed cars
which take 7.00
x!8

Cadillac

355

7%»
3 qts.

Spiral bevel

4.54

4.07 and 4.91
Shims
Artillery
Wire, Disc,
Demountable
Wood

19'
5'
5'

U.S.,

Firestone,

Goodyear

6.50 x 19

7.00 x 18

Cadillac

370

7%'
3 qts.
Spiral bevel

Cadillac

452

m'

3 qts.

Spiral bevel

4.54
4l07 and 4.91
Shims
Artillery^
Wire, Disc,
Demountable
Wood
19'
5'
6'
U.S.,

Firestone,

Goodyear

7.00 x 19

7.50 x 18

4.39

4.07 and 4.75
Shims
Artillery
Wire, Disc,
Demountable
Wood
19'
5'
6'

U.S.,Fire8tone,

Goodyear

7.50 x 19

7.50 x 19

REAR AXLE (Continued)

No.

of Plies in Tire

Front Tire inflation pressure

Rear Tire inflation pressure

Front Spring type

Front Spring length

Front Spring width

Front Spring number of leaves,

5-Pass.

Sedan

Front Spring shackled front or rear

Rear Spring type

Rear Spring length

Rear Spring width
Rear Spring number of leaves

5-Pass.

Sedan

Spring Leaves lubricated with

Spring Shackles (rear) type
Spring Shackles make

Spring Cover, type—(make)

LaSalle

345

6
45 lbs.
40 lbs.

Cadillac

355

6
45 lbs.
40 lbs.

SPRINGS

Semi-elliptic
38'

2'
9

Rear
Semi-elliptic
58'
2'

11
Graphite &

Grease
Compression

Own
Metal
(Anderson)

Semi-elliptic
38'

2'
9

Rear
Semi-elliptic
58'
2'

11
Graphite &

Grease
Compression

Own
Metal
(Anderson)

Cadillac

370

6
45 lbs.

40 lbs.

Semi-elliptic
40'

2H'

9

Rear
Semi-elliptic

58'

2H

r

11
Graphite &

Grease
Compression

Own

Metal

(Anderson)

Cadillac

452

6
45 lbs.

40 lbs.

Semi-elliptic
42'

2H'

10
Rear

Semi-elliptic
60'

m'

10
Graphite &

Grease
Tension

Own
Metal
(Anderson)

Steering Wheel, dia.

Steering Gear, type
Steering Gear Ratio

Car turning dia., tire wall, right

left

Car turning dia., fender sweep, right

left

Castor Angle
Camber Angle
Toe In
Front Axle make

Front Axle section type

Front Axle end type

Foot Brakes make

Number of complete Brakes

Foot Brake, type of mechanism

Foot Brake, method of application

STEERING

LaSaUe

345

18'
Hour Glass
Worm & Sector
17tol
48'9'
44'6*
50'

9"

46'6'
1¼

0

1½

0

Own
I-Beam
Reverse Effiot

Cadillac

355

18'
Hour Glass
Worm & Sector

17tol
51'9'
46'6'

53'8'
48'8'

1¾°

1½°

Own
I-Beam
Reverse Elliot

BRAKES

Own
4

Internal artic­ulatedshoe
Mechanical

Own

4

Internal artic-

ulated shoe

Mechanical

Cadillac

370

15'
Hour Glass

Worm & Sector

l7tol
53'

8'
53'3*
56'1*
55'8»
2^--3½

0

Own
I-Beam
Reverse Elliot

Own
4

Internal artic­ulated shoe
Mechanical
with Vacuum
assister

Cadillac

45¾

19'
Hour Glass
Worm & Sector
17tol
55'
54'5*
56'2'
55'7'
2½°

Di°

W

Own
I-Beam

Reverse Elliot

Own
4

Internal artic­ulated shoe
Mechanical
with Vacuum
assister

BRAKES (Continued)

Location of Service Brakes
Brake Lining make

Rear Brake Drum dia.
Rear Brake, internal or external
Rear Brake Lining width
Front Brake Drum dia.
Front Brake, internal or external

Front Brake Lining width
Per cent Braking power on Rear Wheeb
Hand Brake location
Hand Brake

Frame material
Frame depth
Frame thickness
Frame Flange width

Wheelbase

LaSaUe

345

Front & Rear
Hycoe Semi­moulded

15'
Internal
2'
15*
Internal
2'

50%

Rear
Rear Service

Cadillac

355

Front & Rear
Hycoe Semi­moulded

15'
Internal
2'
15'
Internal
2'
50%
Rear
Rear Service

FRAME

Carbon Steel
8'

3*

at Top—

2%'at bottom
134'

Carbon Steel
8'

»4'

3*

at Top—

2¾ 'bottom
134'

Cadillac

370

Front & Rear
Hycoe Semi­moulded

15'
Internal
2'
15'
Internal
2'
50%
Rear
Rear Service

Carbon Steel
8'

s

4'

3*

at Top—

2½'bottom
140'—143*

Cadillac

452

Front & Rear
Hycoe Semi­moulded
16^'
Internal

!&•

Internal

2

HL*

50%

Rear
Rear Service

Carbon Steel
9'

3M' at Top—
2½'bottom

148'

FRAME (Continued)

LaSalle

345

Tread, front
Tread, rear
Overall length of

car

with Bumpers and

Spare Tires in Fenderwells

Cadillac

355

57¾ '
59½ '

202%'
203%'

with

rear tire carrier

57>£'
59½'

202%'
203%'

with

rear tire carrier

Cadillac

370

57¾ '
59H»

Cadillac

452

57&'
59H'

210

'—213 ' 219¾ ' appro*.

215H"~218H'

222^ with
with fenderwells rear tire carrier
and trunk rack

La Salle V-8, Series 345

(.134-inch Wheelbase)

Style List Delivered
2-Passenger Coupe $2195.00
2-Passenger Roadster 2245.00
2-Passenger Convertible Coupe... 2295.00
5-Passenger Coupe 2295.00
5-Passenger Sedan 2295.00
5-Passenger Town Sedan 2345.00
7-Passenger Touring 2345.00
7-Passenger Sedan 2475.00

7-Passenger Imperial 2595.00 _
5-Passenger Sedanet 3245.00
5-Passenger Sedanet Cabriolet... 3245.00

5-Passenger All-Weather Phaeton. 3245.00

Chassis 134-inch Wheelbase 1900.00
Standard wheel equipment: Wood; tire size 6.50 x 19.

Extras

5 Wire wheels $ 60.00

6 Wire wheels, fender wells, 2 spare tires and

trunk rack 190.00
5 Demountable wood wheels 50.00
6 Demountable wood wheels, fender wells, 2

spare tires and trunk rack 190.00

5 Disc wheels 50.00
6 Disc wheels, fender wells, 2 spare tires and

trunk rack 190.00

Above extra equipment carries 6.50 x 19 tires except
La Salle 7-Passenger Touring, 7-Passenger Sedan and

Imperial. For La Salle 7-Passenger Touring, 7-Passen-

ger Sedan and Imperial use Cadillac V-8 extra equip-

ment prices and tire sizes. Black side wall tires.

Cadillac V-8, Series 355

(134-inch Wheelbase)

Style List Delivered

2-Passenger Coupe $2695.00
5-Passenger Coupe 2795.00
5-Passenger Sedan 2795.00
2-Passenger Roadster 2845.00
5-Passenger Town Sedan 2845.00
2-Passenger Convertible Coupe... 2945.00
5-Passenger Phaeton...,,.. 2945.00
7-Passenger Sedan 2945.00
7-Passenger Imperial. 3095.00

5-Passenger All-Weather Phaeton. 3795.00

Chassis 134-inch Wheelbase .. 2000.00
Chassis 152-inch Wheelbase. 2200.00

Standard wheel equipment: Wood; tire size 6.50 x 19.

Extras

5 Wire wheels $ 70.00
6 Wire wheels, fender wells, 2 spare tires and

trunk rack 210.00
5 Demountable wood wheels 50.00
6 Demountable wood wheels, fender wells, 2

spare tires and trunk rack 190.00
5 Disc wheels 50.00
6 Disc wheels, fender wells, 2 spare tires and

trunk rack 190.00

Above extra equipment carries 7.00 x 18 tires. Black
side wall tires.

Cadillac V-12, Series 370

(140—143-inch Wheelbase)

Style List Delivered

2-Passenger Coupe $3795.00
5-Passenger Coupe 3895.00
5-Passenger Sedan 3895.00
2-Passenger Roadster 3945.00
5-Passenger Town Sedan 3945.00

5-Passenger Phaeton 4045.00
2-Passenger Convertible Coupe... 4045.00
7-Passenger Sedan 4195.00
7-Passenger Imperial 4345.00
5-Passenger All-Weather Phaeton. 4895.00

Chassis 140-inch Wheelbase 3100.00

Chassis 143-inch Wheelbase . 3200.00

Interiors

all

body

styles by Fleetwood.

Standard wheel equipment: Wood; tire size 7.00 x 19.

Black side wall tires.

Extras

5 Wire wheels $ 70.00
6 Wire wheels, fender wells, 2 spare tires and

trunk rack 240.00
5 Demountable wood wheels 50.00
6 Demountable wood wheels, fender wells, 2

spare tires and trunk rack 230.00
Above extra equipment carries 7.50 x 18 tires, white

side wall, with black side wall tires optional.

Cadillac V-16, Series 452

(.148-inch Wheelbase)

Fleetwood Custom Bodies

Style

No.

List Delivered
4302 2-Passenger Roadster $5350.00
4260 5-Passenger Phaeton 6500.00
4380 All-Weather Phaeton 5750.00
4476 2-Passenger Coupe 5800.00
4276 2-Passenger Coupe 6850.00
4381 5-Passenger Coupe 5950.00

4235 2-Passenger Convertible

Coupe 6900.00
4361-S 5-Passenger Club Sedan. . . 5950.00
4161-S 5-Passenger Club Sedan... 6950.00

4330-S 5-Passenger Sedan 5950.00
4330 5-Passenger Imperial (opera

seats) 6300.00
4130-S 5-Passenger Sedan 6950.00
4130 5-Passenger Imperial (opera

seats) 7300.00
4355-S 5-Passenger Sedan Cabriolet 6125.00
4355 5-Passenger Imperial

Cabriolet (opera seats). 6350.00
4155-S 5-Passenger Sedan Cabriolet 7125.00

4155 5-Passenger Imperial

Cabriolet (opera seats). 7350.00
4375-S 7-Passenger Sedan (FF aux.

seats) 6225.00
4375 7-Passenger Imperial

(FF aux. seats) 6525.00
4175-S 7-Passenger Sedan (FF aux.

7225.00

Cadillac V-16—Continued

Style

No.

List Delivered

4175 7-Passenger Imperial

(FF aux. seats) $7525.00
4312 Town Cabriolet (opera seats) 6525.00
4212 Town Cabriolet (opera seats) 8750.00

4320 Town Cabriolet (quar. win-

dows)—(FF aux. seats).. 6525.00

4220 Town Cabriolet (quar. win-

dows)—(FF

aux.

seats).. 8750.00

4325 Town Cabriolet (full leather

quar.)—(FFaux.seats).. 6525.00

4225 Town Cabriolet (full leather

quar.)—(FF aux. seats). 8750.00

4391 Limousine Brougham (FF

aux. seats) 6525.00

4291 Limousine Brougham (FF

aux. seats) 8750.00

4264 Town Brougham (opera

seats) 9200.00

4264-B Town Brougham (special

cane work) 9700.00

Standard wheel equipment: Wood; tire size 7.50 x 19.
White side wall tires standard.

Extras

5 Wire wheels $ 70.00
6 Wire wheels, fender wells, 2 spare tires and

trunk rack 300.00
5 Demountable wood wheels 50.00
6 Demountable wood wheels, fender wells, 2

spare tires and trunk rack 280.00
5 Disc wheels 50.00
6 Disc wheels, fender wells, 2 spare tires and

trunk rack 280.00

PRICE LIST

La Salle V-8
Cadillac V-8
Cadillac V-12
Cadillac V-16

October 15,1930

All prices f.o.b. Detroit

Subject to change without notice

CADILLAC MOTOR CAR COMPANY

Detroit, Michigan, U.S.A.

102

THE BOOK Or FLEETWOOD

All fenders and chassis black.

In addition, Fleetwood bodies in a variety of
rich colors, lighter in shade, will be brought
through periodically for stock. Bulletins will
announce these.

Colors available on open types, All-Weather
types,

and Sedanette types will be announced

periodically.

UPHOLSTERY

E

IGHT

rich exclusive Fleetwood Doeskin

Suede broadcloths by Wiese in subdued

colorings harmonizing with any exterior color.

*

Exclusive Fleetwood Wiese

broadcloths:

Weise 2969 ---------- Green Gray
Weise 2970 --------- Maroon Taupe
Weise 2971 ------------ Tan
Weise 2972 ---------- Silver Gray
Weise 2973 ---------- Blue Gray
Weise 2994 - -.-. Tan Taupe
Wiese 3288 ---------- Dark Gray
Wiese 3363 --------- -DarkTaupe

Optional in all enclosed drive and transformable
types.

Three special Venetian mohairs of short nap.

Exclusive Fleetwood Venetian

mohairs:

108-T ------------- Green
109-T ------------- Gray
110-T ------------- Taupe

Optional in all enclosed drive and transformable
types.

THE BOOK Or FLEETWOOD 103

The first two blend well with comple­mentary body colors, Taupe, because of its
neutral shade, going well with any color.

Fifteen special exclusive Fleetwood Aero
leathers by Radel. These are lightweight, soft,
pliable,

and luxurious, four being specified for
stock with the balance optional without extra
charge,

with a reasonable added time allow-

ance.

Special Radel Aero

leathers:

5885 ----------- -Silver Gray

451------------

Pearl Gray
2646 ------------ Blue Gray
5897 ------------ Green Blue

68 - -- -- -- -- - Blue (Standard)
6016 ------------ Dark Blue
9205 ----------- Deep Maroon
5875 ----------- Rich Maroon
4339 ---------- Green (Standard)

/

Vanity cases are designed exclusively for Fleetwood bodies

and contain

8-day

clock, mirror, leather cigarette

case,

and two ash receivers

104

THE

BOOK

OF

FLEETWOOD

0019 ------------ Soft Green

6012 ------------ Dark Green
9128 ----------- Light Brown

9131 -.--.---.-- Dark Brown

743 -.-.--.-.-

Tan

(Standard)

2645 -.-------- Black (Standard)

Optional

in

All-Weather Phaeton, Sedanette,

and

open types.

This picture shows a hood with damaskeen finish,

a unique and attractive treatment

Six weatherproof Bedford cords by Wiese.

The corded fabrics are used for seats with plain

material to match for head linings. The water­proof feature of these materials makes them

especially desirable for All-Weather types.

Special ivaterproof Wiese Bedford cords:

Wiese 2659-F, 2759-F -- - -- - - Green Gray
Wiese 2661-F, 2761-F

------

Brown Gray

THE BOOK

Of

FLEETWOOD

105

Wiese 2662-F, 2762-F -------- -Gray
Wiese 2663-F, 2763-F ------- Blue Gray
\V1Cse 2665-F, 2765-F ------ Maroon Taupe
Wiese 2666-F, 2766-F -------

Tan

Taupe

Optional

in

All-Weather Phaeton

and

Sedanette

types.

With the wide variety offered in the regular
exclusive Fleetwood upholstery materials, we
recommend that cloths be selected from Wiese
collection No. 61 only when absolutely necessary,
as there will be delays involved in securing
curtains and other trimming materials to

match. These delays are avoided in the case of
the regular Fleetwood materials.

Enclosed drive types and transformable types.

Eight exclusive Fleetwood Wiese broadcloths—optional.
Three exclusive Venetian mohairs—optional.
Any material

in

current Wiese Collection

No. 61—

optional.

All-Weather

and

Sedanette types:

Fifteen Fleetwood Radel Aero leathers—optional.
Six weatherproof Fleetwood Wiese Bedford cords—

optional.

Open types:

Fifteen Fleetwood Radel Aero leathers—optional.

(In

the

case

of

All-Weather Phaetons, Sedanettes,

and

open types, four

of the

exclusive Fleetwood Radel Aero

leathers

in the

sample book will

be

specified

for

stock.

The balance

are

optional with reasonable added time

allowance.)

-X

"J*!.

*^t

r^yywryK^y-ag^PT^jv^-TB

> *.

M'-T,!*

.J" '. n

CADILLAC

370 •

CONDENSED

SPECIFICATIONS

POWER

PLANT

ENGINE—Compensated,

twelve-cylinder, valve-in-head,

V-type.

Forty-five-degree

angle

between

cylinder

blocks.

Engine

and

transmission

in

unit;

five-point

suspension;

all

supports mounted in rubber. Piston displacement,

368 cubic inches.

Bore,

3¾ inches. Stroke, 4 inches.

Horsepower,

N.A.C.C.

rating,

46.9; actually, 135.

CRANKCASE—Aluminum

alloy.

CRANKSHAFT—Diameter,

2¾

inches; length to outer

ends

of

front and rear bearings, 31

tV

inches. Supported on

four

steel-backed babbitt

main

bearings.

Crank

throws,

120

degrees

apart. Provided with compensators and

vibration

dampener.

CYLINDERS—Cast

in

blocks

of

six, with detachable heads.

High-compression

heads

standard.

PISTONS—Molybdenum

cast

iron;

four

rings,

three above

wrist

pin and

one below; two lower

rings,

special

oil

regu-

lating type.

CONNECTING

RODS—Chrome

molybdenum

steel;

side

by

side, two on each crank pin. Rods are gun drilled for
pressure lubrication of wrist pins. Bearings,

2¾

inches

by

1H

inches. Babbitt

in

rods

at lower

ends.

CAMSHAFT—Single,

hollow shaft with 24 cams, supported

on

four

bearings.

Driven

from

crankshaft by

silent

chain.

VALVES—Intake,

lxV

inches

clear diameter, silichrome

steel;

exhaust, 1 xV

inches

clear

diameter, silichrome

steel,

J|-inch

lift.

Mechanism

enclosed, fitted with automatic

valve silencers. Valve

stems

automatically lubricated.

GASOLINE SYSTEM

CARBURETORS—Two

separate

induction

systems,

one for

each bank of cylinders, Cadillac design and manufac-

ture, equipped with intake mufflers.

Uniform

distribu-

tion with

maximum

efficiency

and

economy.

Automatic

thermostatic mixture control. Intake headers

exhaust

heated.

SUPPLY—

Twenty-two

gallon

tank.

Vacuum

feed.

Vacuum
created by a special vacuum pump to insure positive
feed

under all conditions.

Large

accessible

strainer on

vacuum

tank.

COOLING SYSTEM

WATER

COOLING—Capacity,

gallons.

Forced

circula-

tion by centrifugal pump driven by a

silent

chain from

the crankshaft.

Cylinder

blocks independently fed from

double-outlet

pump.

TEMPERATURE

CONTROL—Thermostatically

controlled

by

radiator

shutters

with vertical balanced shutter blades.

RADIATOR—Copper

with

cellular

core

of

latest

design with
short fins and deflected centers. Casing, chromium
plated

on

polished nickel.

FAN—Diameter,

20¾ inches; six blades; belt driven by
pulley mounted on end of crankshaft. Fan bearing
lubricated

through high-pressure alemite fitting.

LUBRICATING SYSTEM

ENGINE

LUBRICATION—Pressure

system

with gear pump

conveys

oil

under

pressure to

all

main

bearings, connect-

ing

rod bearings, wrist pins, camshaft bearings and
valve gear. Pressure is controlled by an automatic
pressure regulator.

Oil

level

indicator

is located on

left-

hand

side

of

crankcase at center.

CRANKCASE

VENTILATION—An

exclusive

Cadillac

thermo-

statically controlled

system

which prevents dilution of

lubricating

oil from unburned

gasoline

and from con-

densation of water vapors produced in combustion.
Ventilator

discharges

below

engine

mud

pans.

OIL

FILTER—An

effective

filtering

device which

removes

from

the

oil

any

impurities

in

solid

form.

ELECTRICAL

SYSTEM

IGNITION—Incorporates

two circuits, one for each block

of

cylinders.

Cadillac-Delco-Remy

high-tension

system
with two timer contact arms actuated by six-lobed
cam.

Jump-spark

distributor.

IGNITION

LOCK—Coincidental

theftproof

ignition

and

transmission lock, operated from instrument board.

GENERATOR—Two-pole

Cadillac-Delco-Remy type,

mounted at the front of the

engine

at the right of the
crankcase. Positive drive by chain from crankshaft.
Thermostatic and

third

brush control of charging

current.

STARTING

MOTOR—Cadillac-Delco-Remy

separate

six-

pole unit; double reduction

between

motor and fly-

wheel.

Mounted

along right

side

of transmission.

BATTERY—Delco,

130-ampere hour,

15-plate,

six-volt,

three-cell. Mounted on right

side

of

car

in battery box

set into front fender alongside frame

side

member.

HORNS—Two

high-frequency vibrator horns of

excep-

tional

tone

carried

on head lamp brackets at each

side

of

radiator.

Concealed

connections.

LIGHTING

EQUIPMENT—Two

head lamps with

til

table fight

beams

controlled from steering wheel, fluted

lenses,
21-c.p. double-filament bulbs. Parking lamps, 3-c.p.
bulbs.

Parking

lamps mounted on top of front fenders.

Two

combination

stop

and tail lamps at rear, one

located on each rear fender.

Step

lights

light auto-

matically with opening

of

doors.

1931

OPERATING CONTROLS

CLUTCH—Dry

disc plate type. Two

steel

driven discs,

ten inches

in

diameter, faced with compressed

asbestos

fabric,

driven

by

three cast-iron

plates

to

which

are

attached

all

springs, levers,

and

other parts of

clutch,

with exception

of

clutch thrust bearing, which

is

supported by a

sleeve

bolted

to

the transmission

case.

TRANSMISSION—Special

Cadillac

Syncro-Mesh trans-

mission, giving

noiseless,

smooth gear shifting

at all

speeds.

Selective

type with three

speeds

forward and

one reverse.

Nickel

steel

gears

and

shafts.

Faces

of

gear

teeth

ground on special grinding machine

to

obtain

silent

operation.

Mechanism

contained

in

cast-iron

case.

GEAR

SHIFT—Center

gear

shift.

SERVICE

BRAKES—Safety-mechanical

brakes.

Special

de-

sign.

Entirely

enclosed, giving

maximum

efficiency

in all

weather.

Mechanically

operated, mechanism mounted

on

15

roller

bearings, internal on both front and rear

wheels.

Division

of

pedal

pull

automatically propor-

tioned

between

front and rear

systems.

Front

brakes

equalized

when

straight

ahead,

outer

brake

released on

turn.

All brakes are

15

inches

in

diameter.

Vacuum

brake

assister.

HAND

BRAKES—Internal

on

rear

wheels.

STEERING

GEAR—Cadillac

design, hourglass worm-and-

sector, completely adjustable. Mounted

on

tapered

roller

bearings.

Reduction,

17

to

1.

Steering wheel,

19

inches in diameter, of

special

safety

type,

employing

a

die-cast

aluminum

rim and

spider with

steel

reinforce-

ment,

pyralin

finish. Steering

system

completely har-

monized by

means

of

special

modulator

at the

forward

end of the

left

front

spring,

consisting

of a flexible shackle

held

by

four coil springs, completely eliminating

all

shimmy,

front

end

tramp,

and

road

shocks.

ENGINE

CONTROLS—Accelerator

at

right

of

brake

pedal.

Hand

throttle built into central portion

of

steering

wheel.

Spark

control,

pull

type

on

instrument

board.

MISCELLANEOUS

AXLES—Rear

axle:

Cadillac

make,

-^-floating with special

alloy

steel

axle

shafts

and gears; spiral bevel

gears

mounted on large bearings.

Front

axle: reverse Elliott
type, drop-forged steering spindles and arms; steering
spindles have adjustable

bearings

at

both

ends.

Parallel

rod

has

spring compensated ball-and-socket connec-

tions

at end.

DRIVE—Hollow

steel

drive shaft,

2J^-inch

diameter

in

center, tapering

to

inches

at

each end, turns

in

torque

tube

which

completely

seals

assembly.

Rear

end

of

drive

shaft

rigidly

connected to

rear

axle

by splined

sleeve;

front end

to

transmission shaft through

uni-

versal

joint.

Torque

tube

is

bolted

to differential

carrier

at

rear,

and front

end

pivoted in ball-and-socket joint

at rear

of the

transmission. Transmits drive

of

rear

wheels

to

chassis

and absorbs torque reactions due

to

acceleration

and

brakes.

FRAME

—Side

bar

channel

section

with wide top flange,

carbon

steel;maximum

depth, 8 inches;

width,

29

inches

in

front,

44¼

inches

in

rear;

flange

width

at

top,

3

inches;

at

bottom,

2½

inches.

SPRINGS—Semielliptic

system

of

suspension with rear

springs underslung.

All

shackles

of

rear springs, com-

pression type.

Front

springs,

40

inches by

2¾

inches;

rear,

58

inches by

2¾

inches. Double-action shock ab-

sorbers

of

hydraulic

type, front and rear, with both

upward

and

downward

dampening

action,

give

greatly

improved

riding

qualities.

GEAR

RATIOS

—Standard,

4.54

to 1.

Optional,

4.91

to 1

and 4.07

to 1.

WHEELS—Artillery

type,

twelve

hickory

spokes

with

steel

felloe. Adjustable

ball

bearings

at

front, demountable

hot-rolled,

split-type

rim

with

six lugs.

Large

steel

hub

with

twelve

bolts. Disc, wire,

or

demountable wood

wheels

obtainable

at

additional

cost.

TURNING

RADIUS—At

tires,

26

feet 8 inches.

WHEEL BASES—140

inches and 143 inches.

Tread:

rear,

59½

inches;

front,

57¾

inches.

TIRES—7.00-19.

(Disc, wire, and demountable wood

wheels,

7.50-18.)

TOOLS

—Complete set of

tools

in special fabric holder,

placed

in

rainproof box.

INSTRUMENT

BOARD—Instruments

arranged

in

group

assembly. Fitted with windshield wiper

control,

spark

control,

oil-pressure

gauge,

button-controlling car-

buretor

enriching device, switch for instrument board

lighting independent

of

switch

on

steering column,

speedometer,

ammeter, electrically operated

gasoline

gauge,

8-day

clock, coincidental transmission

and

igni-

tion lock,

engine

temperature indicator,

and

cigar

lighter.

FENDERS—One-piece,

full-crown,

wide type.

SECURITY-PLATE

GLASS—Is

fitted

in

all

models,

both

open

and

closed,

for all

windshields,

doors,

and

windows.

The

Cadillac

Motor

Car

Company

reserves

the

right

io

make

changes

in

specifications

at

any

time

without

incurring

any

obligation

to install

same

on

cars

previously

sold

CADILLAC

MOTOR

CAR

COMPANY

• • •

DETROIT, MICHIGAN

1931

Float Unitl

on

Tank

KEY

TO

WIRE

COLORS

B-

Black

BO-

BlackOak

BR-Black

RuL

G-

Green
GB- GrtenBlack
R-

Red

S-

BlackNo.O

Y-

Yellow

I

Tail

Lamp!

I Cigar Lighter)—Hdflfl"^-

I

Instrument

LarnpL

4c.fi,s!cT,

No.eJ

I

Ammeter r-

11,

erminal

Block!

BR

R G

Closed

Body

Feed

Horn

Button

Lighting

Switch

To*A*(LHjCoih

I Breaker

Mechanisml

11 yq.ru

coii

1

High

Tension

Distributor

nr

15CP,SCNo-87

I Starting Motor ^--r.

iParkintfLamol

3C.P,&CNoi63

'

Y-

Hornsl

21-21

CP.

No.

1110

Driving

Beam

(Lower

Filament)

I Parking

Lampl

t*

3C.R.SC,

Ntt«>3

• 4

Ground

on

Frame

The V-12 Electrical Circuits are arranged as shown in this

Wiring

Diagram.

1931