Temperature Thermo-Switches
General
General
Governor
Planetary
(information
Specifications—Diesel
Weight
Gears
21-1
Assembly
— 21-1
21-1
21-2
A518
......
21-3
Service
Servicing
Torque
Transmission
Transmission
Transmission
Procedure
Changes
Clutch
Low-Reverse
21-2
The New
Converter
Packs
And
21-1
And
Overdrive
21-2
Case
Overrunning
Drum
Specification
Overrunning
21-1
21-1
Clutch
Compounder
Clutch
And
....
21-2
Page 6
GROUP
Brakes
Cooling System
TAB LOCATOR
8E
8H
8W
d| i| Exhaust System and
Instrument
Gauges
Speed
Wiring
Engines
Manifold
Panel and
Control
Diagrams
System
14 Fuel System
19
21
Steering
Transmission
Intake
iH:;&"*»-.i
24
25
Air
Conditioning
Emission
Control
Systems
Page 7
Page 8
•
BRAKES
CONTENTS
BRAKES
5 - 1
page
DIESEL
INSTALLING
LOW
PUMP
REMOVING
DIESEL
on
sel engine. However, the new vacuum pump
combined
VACUUM
ASSEMBLY
VACUUM
ADAPTER
ASSEMBLY
VACUUM
A
new design power brake vacuum pump
1991-1/2 AD models
with
PUMP
VACUUM-STEERING
WARNING
REPLACEMENT
VACUUM-STEERING
PUMP
SWITCH
with
the Cummins turbo die-
PUMP
PUMP
the power steering pump into a single
is
is
used
still
assembly (Fig. 1).
The new vacuum pump is a constant displacement,
vane-type pump. Vacuum is generated by four
mounted in the pump rotor. The rotor
the pump housing
and is
pressed
is
onto
vanes
located in
the
pump
shaft.
The vacuum and steering pumps are both operated
by a single drive
shaft. The drive
gear
gear
pressed
is
onto the vacuum pump
operated by . the camshaft
gear.
The vacuum and power steering pump shafts
connected by a coupling. Each pump shaft
adapter
with
drive lugs that
engage
in the coupling.
The vacuum pump rotating components are
cated by engine
pump through
oil.
Lubricating
an
oil
oil is supplied to the
line
at' the underside of the
are
has an
lubri-
pump housing.
VACUUM
PUMP
SERVICEABILITY
The vacuum pump is not a serviceable component.
If
diagnosis indicates a pump malfunction, the pump
must
be
not
disassemble
removed and replaced
or attempt to repair the pump.
as an
assembly. Do
The combined vacuum and steering pump assembly
must be removed for
the vacuum pump can be removed
disassemble
If
the power steering pump requires service, simply
remove
Refer
to the
dures
LOW
VACUUM
A
vacuum switch
the power steering pump.
the
assembly and
pump removal and installation proce-
in this section.
vacuum pump.
brake warning
access
WARNING
is
used to monitor output of the
The
switch
light.
to either pump. However,
separate
SWITCH
is in
without
the two pumps.
circuit
having to
with
the
VACUUM
1
VACUUM
5
VACUUM
1
VACUUM
4
GEAR
A
brake booster. A
the brake warning
The switch
PUMP
PUMP
PUMP
PUMP
ADAPTER
Fig. 1 Vacuum
vacuum
DIAGNOSIS
OPERATION
REPLACEMENT
SERVICEABILITY
VACUUM
And
Steering
hose
connects the switch
wire
harness
...
..
Pump
connects the switch to
light.
is
mounted
on the
Assembly
to
driver side inner
fender panel just below the hood hinge (Fig. 2).
VACUUM
Vacuum
brake booster through a supply
PUMP
OPERATION
pump output
is
transmitted to the power
hose.
The
hose
nected to an outlet port on the pump housing and to
the check valve in the power brake booster.
Pump output
ranges
from a minimum
of 8.5 to
inches vacuum.
The pump rotor and
drive
gear.
The drive
shaft
gear.
Booster vacuum
switch
(Fig.
chamber that
circuit
with
2).
measures
the brake warning
vanes
level
are rotated by the pump
gear
is
operated by the cam-
is
monitored by a warning
The switch consists
vacuum
level
and a sensor
light.
of a
page
..
2
..
1
..
4
..
1
J9105-94
the power
is con-
25
vacuum
in
Page 9
5 - 2 BRAKES
Fig. 2 Vacuum Switch Location
The vacuum chamber is connected to the booster
check valve by a vacuum supply
ness
connects
light.
If booster vacuum falls below 8.5 inches for
8-10
seconds
the
circuit
the switch
sensor
or more, the switch
to the warning
light
hose.
A wire
har-
to the brake warning
sensor
causing it to
completes
illumi-
nate.
(3)
Check booster operation as described in the diagnosis
hoses,
eration is correct but the warning
section.
or booster
Replace
if
necessary.
the check valve, vacuum
However,
light
if
booster op-
is
continue testing.
(4)
Disconnect the vacuum
switch,
plug the
hose
hose
from
the warning
and connect a hand vacuum
pump to the switch.
(5)
Start and run the engine.
(6)
Apply
switch
goes
out, the switch vacuum
leaking.
running
(7)
Apply
observe
goes
out, the switch is at fault and should be re-
placed. If the
(8)
Reconnect the vacuum
original
Run
the engine and
If
the
light
remains on, the problem is in the
tween the switch and warning
8.5 to 9 inches of vacuum to the warning
and
observe
If the
the warning
light
remains on, leave the engine
light.
If the
hose
is either loose or
and continue testing.
20-25 inches vacuum to the switch and
warning
warning switch
light
light
operation. If the
light
remains on, continue testing.
with
observe
hoses
warning
and replace the
a known good switch.
light
is now off, the old switch is
faulty.
light.
light
operation.
wiring
still
light
If the
•
on,
now
be-
VACUUM
Vacuum
output
ing
switch can
PUMP
DIAGNOSIS
pump diagnosis involves checking pump
with
a vacuum
also
gauge.
be checked
The low vacuum warn-
with
a vacuum
gauge.
Refer to the diagnosis procedure in this section.
A
standard vacuum
pump output when
pump supply
hose
the outlet port for testing
hold
steady
in a
inches at various engine
DIAGNOSING
CONDITION
A
low booster vacuum condition or a
LOW
vacuum warning switch
ing
light
to
illuminate.
dicates
the existence of a low vacuum condition,
gauge
necessary.
can be
used
Simply disconnect the
and connect a vacuum
range
purposes.
of approximately 8.5 to 25
Vacuum should
speeds.
VACUUM
If
OUTPUT
will
cause
the
light
the brake warn-
does
to check
gauge
faulty
to
low
go on and in-
check the vacuum pump, booster and warning switch
as
follows:
(1)
Check vacuum pump oil feed
line
connections are
secure
and not leaking. If leak-
line.
Verify
that
age is noted and pump is noisy, replace pump.
(2)
Check vacuum pump output
vacuum
booster.
gauge.
Disconnect the supply
Connect the
gauge
to this
with
a standard
hose
hose
and run the
to the
engine at various throttle openings. Output should
range
from
8.5 to 25 inches vacuum. If vacuum is
consistently below 8.5 inches, the problem is
vacuum
put is
hoses
within
or a vacuum pump component. If out-
specified
limits,
continue testing.
with
the
REMOVINGASSEMBLY
(1)
Disconnect battery negative cable.
(2)
Position drain pan under power steering pump.
(3)
Disconnect vacuum and steering pump
from
respective pumps (Fig. 3).
(4)
Disconnect oil
(Fig.
4).
VACUUM-STEERING
Fig. 3 Vacuum
And
Connections
pressure
Steering
sender
PUMP
Pump
wires at
Hose
hoses
sender
Page 10
(5)
Remove oil
pressure
sender
(Fig.
4).
PUMP
LOWER
BRAKES
ASSEMBLY
MOUNTING
5 - 3
ADAPTER
BRACKET
STEERING
PUMP
Fig. 4 Oil
(6)
Disconnect
ENGINE
Pressure Sender Location
lubricating
BLOCK
oil feed
at underside of vacuum pump (Fig.
line
5).
J9119-74
from
fitting
VACUUM
PUMP
BOTTOM-INBOARD
ADAPTER
Fig. 6 Adapter
(9)
Remove upper
bly
to
engine block (Fig.
(10)
Remove pump assembly
BRACKET
And
NUT
Pump Mounting Fastener
Location
bolt
that
attaches
pump
J9105-97
assem-
7).
from
vehicle
(Fig.
8).
VACUUM
PUMP
OIL
LINE J9105-96
Fig. S Oil
(7)
Remove lower
to
engine block (Fig.
(8)
Remove bottom, inboard
adapter
small
to
bracket
Feed
Line Connection
bolt
that
6).
steering pump
to
engine
attaches
(Fig.
block.
nut
6). This nut
Nut and bracket must
be removed before pump assembly
from
block.
FEED
At
Pump
pump assembly
that
attaches
secures
can
be
removed
a
J9119-76
Fig. 7 Removing Pump Assembly Upper Mounting
Bolt
VACUUM
(1)
adapter
PUMP
REPLACEMENT
Remove nuts attaching vacuum pump
(Fig.
8).
to
Page 11
5 - 4
BRAKES
J9105-98
ROTATE
GEAR
TO
DRIVE
ALIGN
Fig, 8 Pump Assembly
(2)
Remove vacuum pump
Turn
pump
shaft
from
(3)
Inspect adapter
if
cut or
gear
coupling if
torn.
back and
necessary.
O-ring
COUPLING
Removal
from
adapter (Fig.
forth
to
(Fig. 9). Replace
O-RING
PUMP
ADAPTER
disengage pump
O-ring
J9105-99
Fig, 9 Vacuum Pump Removed From Adapter
(4)
Lubricate adapter
(5)
Note position of
tate drive
with
(6)
gear
coupling
Verify
that pump
to
(Fig.
drive
align
10).
O-ring
slots in
tangs
is
seated
with
engine oil.
coupling.
Then ro-
on vacuum pump shaft
in adapter and cou-
pling.
(7)
Install
and
tighten pump attaching nuts
washers.
PUMP
ADAPTER
(1)
Remove coupling
(2)
Remove remaining adapter attaching nuts and
remove adapter
(3) If
steering pump
from
each inboard mounting stud on pump (Fig. 12).
(4)
Clean and lubricate pump shaft
REPLACEMENT
from
adapter (Fig. 11).
from
steering pump (Fig. 12).
will
be serviced, remove
with
spacer
engine
9).
and
oil.
Fig.
10
Aligning
Fig.
11
Removing/installing
(5)
Install
(6)
Install
(7)
Position adapter on pump studs.
(8)
Install
spacers
O-ring
attaching nuts on outboard stud and on
Pump
Shaft
Pump
on steering pump
on adapter
(Fig.
the two upper pump studs. Do
lower,
inboard stud
N-m
(18 ft. lbs.) torque.
(9)
pling
Install
is
coupling
securely engaged in shaft drive tangs.
at
this
time.
on
pump shaft.
TANGS
J9105-102
Drive
Tangs
Drive
Coupling
studs
(Fig.
11).
not
install
Tighten nuts
Be
sure
12).
nut
to 24
cou-
on
Page 12
Fig.
12
Steering Pump Mounting Stud Spacer
Locations
(10)
Install
gear
until
Verify
that pump is
ing
nuts.
(11)
Install
vacuum pump on
tangs
on pump shaft
seated
adapter.
engage
before
Rotate drive
in coupling.
installing
and tighten vacuum pump attaching
nuts.
INSTALLING
VACUUM-STEERING
PUMP
ASSEMBLY
(1)
Position new gasket on vacuum pump mounting
flange
(Fig.
13). Use Mopar perfect seal, or silicone
adhesive/sealer to
Fig.
13
Positioning Gasket
hold
gasket in place.
On
Flange
Pump Mounting
attach-
—
_
(2)
Insert pump assembly upper attaching
mounting
hold
(3)
upper
to
hold
(4)
flange and gasket. Use
bolt
in place if
Position pump assembly on engine and
bolt
(Fig. 14). Tighten upper
assembly in place at this
Fig.
14
installing
Working
sembly lower attaching
lower
bolt
to 77 N-m (57 ft. lbs.) torque.
(5)
Position bracket on steering pump inboard stud.
Then
install
stud.
Tighten nut to 24 N»m (18 ft. lbs.) torque.
(6)
Connect oil feed
tor.
Tighten
(7)
Install
BRAKES
sealer
or
necessary.
bolt
only
time.
Pump
from
under vehicle,
Assembly
On
Engine
install
bolt.
Then tighten upper and
pump as-
remaining adapter attaching nut on
line
to vacuum pump connec-
line
oil
fitting
pressure
securely.
sender
and connect
wires.
(8)
Connect steering pump
lines
to pump. Tighten
N-m
(22 ft. lbs.) torque.
(9)
Connect vacuum
(10)
Connect battery cables, if removed.
(11) Fill
(12)
gine
circulate
(13)
voir
(14)
eration.
vacuum
Then
before
power steering pump reservoir.
Purge air
and
slowly
fluid
and purge air
Stop engine and top off power steering
fluid
level.
Start engine and check brake and steering op-
Verify
assist
verify
moving
that power brake booster is
and
that steering action is correct. Do this
vehicle.
hose
from
steering pump lines. Start en-
turn
steering wheel
firm
pressure
pressure
line
fitting
and return
to vacuum pump.
left
and
from
system.
brake pedal is obtained.
5 - 5
bolt
in
grease
to
install
enough
sender
to 30
right
to
reser-
providing
Page 13
Page 14
•
COOLING
COOLING SYSTEM
GENERAL
This
cooling
main
diator.
as a result of the new radiator.
RADIATOR
A
year. The radiator cools the engine and automatic
transmission
REMOVAL
(1)
INFORMATION
group contains
changes
made
to the diesel
system during the mid-1991 model year. The
change
The cooling system capacities
cross-flow radiator is used in the
Disconnect battery negative cable
is a new higher capacity cross-flow ra-
have
changed
mid-1991
(if
equipped).
from
battery.
model
SYSTEM
7 - 1
WARNING:
BLOCK
DRAINCOCK
PRESSURE
COOLANT
(2)
Drain
Cooling
DO NOT
DRAIN
PLUGS OR LOOSEN THE
WITH
BECAUSE SERIOUS
CAN OCCUR,
REMOVE
THE SYSTEM HOT AND
the cooling system. Refer to
System in the 1991
Rear
THE CYLINDER
RADIATOR
UNDER
BURNS
FROM
Draining
Wheel
Drive
Service Manual.
(3)
Remove
Remove coolant
hose
reserve
clamps and
tank
hose
hoses
from
from
radiator.
radiator
neck nipple.
(4)
Remove fan shroud retaining clips. The shroud
has two
radiator.
tabs
that fit into clips in the bottom of the
Lift
the shroud up and position it back onto
the engine (Fig. 1).
(5)
Remove radiator top mounting brackets. The
brackets fit over support dowels on the radiator
tank (Fig. 1).
(6)
The bottom of the radiator has two dowels that
fit
into
holes in the lower support panel. Taking
not
to
damage
radiator cooling fins or tubes,
lift
Truck
filler
inlet
care
ra-
Fig. 1 Radiator
diator
straight up out of engine compartment.
INSTALLATION
(1)
Position shroud rearward on engine.
(2)
Lower radiator into
bottomlower
ing
retaining
ing
Truck
of theradiator fit into alignment holes in the
supportpanel.
(3)
Install
top mounting brackets. Tighten mount-
screws to 23 N»m (17 in. lbs.) torque.
(4)
Connect radiator
(5)
Position fan shroud on radiator flange.
clips.
(6)
Open
(7) Fill
heater
cooling system
Cooling System in the 1991
Service Manual.
(8)
Operate engine
hoses.
valve.
until
and Fan
position.
Install
with
coolant. Refer to
Rear
it
reaches
Shroud
The dowels on the
ature. Check cooling system.
hose
clamps.
Install
Fill-
Wheel
Drive
normal temper-
IMINI
Diesel
Diesel
MOML
All
All
SPECIFICATIONS
COOLING
RADIATOR
m
WIDTH
INCHES
A
•
26
26
IHKK-
NISS
2.25 3
2.25
SYSTEM
ROWS
OF
TUBES
3
CAPACITIES
HNS
DIAMETBR
MR
INCH
INCHES
13 22.0
13 22.0
NO.
OP
BLADES
7
7
FAN
PITCH
INCH
•NOAOIMINT
T1MMRATURI
2.20
2.20
CLWTCH
140°F
140
°F
CAPACITY
QUARTS
17.0
16.0 15.1
units
39107
16.1
881
Page 15
Page 16
•
OWERDRIWE
REMOVAL
(1)
Locate bracket
mittent
(2)
Remove 2 nuts
panel support.
(3)
Remove ground
(4)
Depress
the instrument panel.
LOCKOUT
holding
wipe module (Fig.
lock
tabs
INSTRUMENT
PANEL
AND
INSTRUMENT PANEL AND GAUGES
of
INSTALLATION
(1) Hold wiring
(2)
Push
switch
(3)
Continue
(4)
Install
straps
are
installed.
connector
on
to
push
bracket
to
wiring
until
with
in
switch
modules.
SWITCH
chime module and inter-
2).
holding
straps
and bracket.
on
switch
bracket
and
to
instrument
push
it
out
GAUGES
switch
opening.
connector.
snaps
Be
sure
GROUND
8E - 1
into
place.
ground
Fig. 1 Overdrive
Lockout
J918E-37
Switch Location
COMBINATION
BUZZER
INTERMITTENT
WIPER
MODULE
BRACKET
INTERMITTENT
CONTROL
Fig. 2 Intermittent Wiper Module Bracket
WIPER
MODULE
J918E-36
Page 17
Page 18
•
SPEED
CONTROL
SPEED CONTROL SYSTEM
CONTENTS
SYSTEM 8H -
1
SERVICE
GENERAL
The
tuated and vacuum
is integrated into the
PROCEDURES
INFORMATION
speed
control
8
system
operated.
(Fig. 1) is electrically ac-
The electronic control
engine
controller, located next
to the battery. The controls are located on the
ing
wheel and
CEL
and
designed
km/h)
and 85 mph (142 km/h).
WARNING;
RECOMMENDED
NOT
PERMIT
SUCH
AS
ARE
WINDING,
PERY.
TO
ACTIVATE:
to the
depressed
trol
function is now
TO
DEACTIVATE:
or normal
gaged
will
memory. Pushing
latched position or turning off the
consist
of the ON/OFF, RESUME/AC-
SET/DECEL buttons.
to
operate
THE USE
MAINTAINING A CONSTANT
IN
HEAVY
at
WHEN
ICY,
speeds
OF
SPEED
DRIVING
TRAFFIC
SNOW
between
OR
COVERED,
By pushing the ON/OFF button
latched position, ON, the
ready
for use.
A soft tap of the
brake
application while the
disengage
speed
the
ON/OFF button
control without
The
CONTROL
CONDITIONS
ON
system
35
mph (50
SPEED,
ROADS
OR
speed
brake
system
to the un-
ignition
erases
memory.
TO
SET SPEED: When the vehicle
the desired
gage
the desired
TO
gaged,
lows the vehicle to
TO
system
SUME/ACCEL
ously
TO
gaged,
and
release
speed
system
push
which
the SET/DECEL button to en-
will
then automatically maintain
speed.
DECELERATE: When
holding the SET/DECEL button
coast
to a lower
RESUME:
by
After
tapping
disengaging the
the
brake
button to return vehicle to the previ-
set
speed.
ACCELERATE: While
hold the RESUME/ACCEL button
at a
new desired
speed
pedal
speed
speed.
has
control
depressed
speed
speed
push
control
This
setting.
the
depressed
will
page
steer-
is
IS
NOT
DO
THAT
SLIP-
con-
pedal,
is
en-
erasing
the
reached
is en-
al-
control
RE-
is en-
allow
TEST
PROCEDURES
the vehicle
higher
TAP-UP:
gaged,
crease
system
TO
ACCELERATE
accelerator
is
released
ting
in memory.
SERVO
to
speed
When
tapping the RESUME/ACCEL button
the
speed
will
respond
as
the vehicle
CONNECTOR
Fig, 1 Speed
page
4
continuously
accelerate
and
set at a
setting.
the
speed
setting
by 2
to multiple
for
control
PASSING:
system
mph
(3
tap-ups.
is en-
will
km/h).
Depress
in-
The
the
you would normally. When the pedal
will
return
Control
to
the
speed
J918H-20
System
set-
Page 19
8H
- 2
SPEED
CONTROL
SYSTEM
WARNING: THE USE
IS
NOT
CONDITIONS
TRAFFIC
RECOMMENDED WHEN DRIVING
DO NOT
A CONSTANT SPEED, SUCH
OR ON
ICY, SNOW COVERED
Of
ROADS THAT ARE WINDING,
SPEED
WITHOUT PUSHING THE
"SET/DECEL"
FAULTY
DEFECTIVE
THE SPEED CONTROL
PERMIT MAINTAINING
CONTROL ENGAGES
ELECTRICAL
AS
HEAVY
OR
SLIPPERY.
BUTTON
CIRCUIT*
j
:
SERVO
START
ENGINE
ACCELERATE
TO
DESIRED
VEHICLE
SPEED
PUSH ON/OFF BUTTON
TO
"ON"
POSITION.
PUSH AND RELEASE
"SET/DECEL"
REMOVE
ACCELERATOR.
FOOT
BUTTON
FROM
SPEED
SHOULD BE CONTROLLED
SPEED
CONTROL
ENGAGES
ENGINE
IS
FAULTY
ELECTRICAL
DEFECTIVE
WHEN
STARTED
CIRCUIT*
SERVO
NO SPEED CONTROL WHEN
SET/DECEL
PRESSED
FUSE BLOWN
NO
BUTTON
AND
VACUUM
IS
RELEASED
AT
SERVO
SPEED
CONTROL
THROTTLE
CABLE
DISCONNECTED
IMPROPER
AND
SWITCH
FAULTY
STOP LAMP
SPEED
CONTROL
ADJUSTMENT
ELECTRICAL
CIRCUIT*
DEFECTIVE
SERVO
HUNTING SURGE
SPEED
VARIATIONS
AT LOW SPEEDS
LOCK-UP
TORQUE
CONVERTER
ROUGHNESS
AMPLIFICATION
OF
ENGINE
SURGE
DEFECTIVE
SERVO
DEFECTIVE
CABLE
DEFECTIVE
ENGINE
*TESTS
AND
IN APPROPRIATE SECTION
CONTROLLER
ADJUSTMENTS ARE DESCRIBED
MANUAL.
OR
OF
SERVICE
EXCESSIVE
ON HILLS
IN TRAILER TOWING
SAG
OR
ENGINE
PERFORAAANCE
VACUUM
LEAK
EXCESSIVE
REQUIRE
ASSISTANCE
LOAD
MAY
MANUAL
ON
HILLS
DEFECTIVE
VACUUM
PUMP
REFER
FOR
TO
VACUUM
SPEED
LOCK-IN,
DEFECTIVE
GROUP 5 -
PUMP
DIAGNOSIS.
SETTING AFTER
TOO
OR TOO LOW
VACUUM
HIGH
LEAK
SERVO
DEFECTIVE
CABLE
DEFECTIVE
VACUUM
PUMP
BRAKES
DEFECTIVE
VACUUM
PUMP
J918H-27X
Page 20
UNIT DISENGAGES
ON ROUGH ROAD
ZZZ3
DRIVE VEHICLE OVER
ROUGH ROAD
<E
BRAI
PEDAL
,
SPEED
.
SHOULD
GAGE
TAP
LIGHTLY
CONTROI
DISEN
SPEED
C01T10L SYSTEi SH - 3
IMPROPER
ADJUSTMENT OF STOP
LAMP
AND SPEED
CONTROL
NOT
SWITCH*
FAULTY
ELECTRICAL
CIRCUIT
EfMGSNE
DOES
RETURN
*
TO
NORMAL IDLE
SPEED CONTROL
THROTTLE
KINKED OR DAMAGED
STANDARD
LINKAGE FAULTS
CABLE
THROTTLE
r
SPEED
CONTROL
DISENGAGES
PUSH
RESUME/ACCEL
SWITCH VEHICLE
SHOULD RESUME
PREVIOUSLY
MEMORIZED SPEED
VEHICLE
SHOULD DISENGAGE
RESUMES
SPEED
DEPRESS BRAKE
PEDAL,
SPEED
CONTROL
NO SYSTEM
DISENGAGEMENT
WHEN
BRAKE PEDAL
IS DEPRESSED
DEFECTIVE
OR
IMPROPERLY ADJUSTED
STOP
LAMP
SPEED
AND
CONTROL
SWITCH
SPEED
CONTROL
THROTTLE
CABLE
KINKED OR DAMAGED
FAULTY
ELECTRICAL
'
CIRCUIT*
DEFECTIVE
SERVO
NO RESUME
WHEN
BUTTON IS PRESSED
DEFECTIVE
FAULTY
SWITCH
ELECTRICAL
CIRCUIT'
SPEED
CONTROL
DISENGAGES
SPEED
CONTROL
SYSTEM OK
NO SYSTEM
DISENGAGE
WHEN
BRAKE PEDAL IS
DEPRESSED
DEFECTIVE
CONTROLLER
FAULTY
CIRCUIT*
ENGINE
ELECTRICAL
RESUME SPEED
IS POSSIBLE
BELOW
20
DEFECTIVE
SENSOR
DEFECTIVE
ENGINE
CONTROLLER
M.P.H.
DISTANCE
J918H-28X
Page 21
8H
- 4
SPEEI
CONTROL SYSTEM
f
TEST
PROCEDURES
INDEX
page
Speed
Checking for Fault Code 4
Distance
(Speed)
Sensor
Test . 4
Inoperative System 4
Road Test 4
Speed
Control Cable Attachment—Engine 7
ROAD TEST
Road
test
vehicle to
system malfunction. The road
tention
to the
speedometer.
should be smooth and without flutter at all
Flutter
which
tem.
might
The
in the
cause
cause
verify
reports of
speedometer
surging in the
of any
speedometer
speed
control
test
should include at-
Speedometer
operation
speeds.
indicates a problem
speed
control
sys-
deficiencies
should be corrected before proceeding.
INOPERATIVE SYSTEM
If
road
test
verifies that system is inoperative and
speedometer
operation is satisfactory, inspect for
loose electrical and vacuum connections at the servo.
Corrosion
nals
and a
Grease,
Inspection should
ends
of the
should be removed
light
coating of Mopar Multi-Purpose
or equivalent, applied.
also
be
made
speed
control cable are securely attached.
from
to
electrical
verify
that both
termi-
CHECKING FOR FAULT CODE
(1)
When
electronic malfunction use a DRB
cause
trying
to
verify a speed
control system
II
to determine the
(refer to Powertrain Diagnostic
Procedures
Control
Speed
Control
Speed
Control
Stop
Lamp
Vacuum
these
components
complete
ELECTRICAL
(1)
Turn
the
speed
voltmeter
negative lead to a good
(2)
Disconnect the 4-way connector going to the
servo (Fig. 2). The blue wire
the main
proximately
connections, brake switch adjustment or, repair the
main
harness
(3)
Connect a jumper wire between the male and
female terminals of the blue wire
The other
should show battery voltage.
(4)
Using an ohmmeter, connect one lead to a good
body ground. Touch other lead to the black
terminal
The meter should show continuity. If not, repair the
ground
circuit
Cable
Attachment—Servo
Switch
System
Speed
Supply
system
TESTS
ignition
Test
5
Electrical
Control
Test
failure
Switch
6
are
damaged,
may
occur.
AT SERVO
switch to the ON position.
control switch in the ON position, set up a
to read battery voltage and connect the
chassis
with
harness
4-way connector should read ap-
battery voltage. If not, check for loose
as
necessary.
three
male terminals
If
in the 4-way connector of the main
as
necessary.
manual).
(2)
Correct any problems found and recheck for
Fault Code if
DISTANCE
For testing of the distance
ponents
dures
manual.
SPEED
CONTROL SYSTEM ELECTRICAL TESTS
Electronic
ing
two different methods. One involves use of a
DRBII.
If this
the Powertrain Diagnostic Test
The other
meter method is described in the
If
any information is
fer
to Group 8W -
CAUTION:
nuity
at
not
to
damage
changes
(SPEED) SENSOR
were
made.
TEST
sensor
and related com-
refer to the Powertrain Diagnostic Proce-
speed
test
When
electrical
control
test
method is desired,
method
systems
uses
needed
Wiring
test
connectors,
connector,
Diagrams. .
probing
may be
please
Procedures
a voltmeter. The
following
concerning
for
voltage
care
terminals,
wiring,
must
or
tested
refer to
manual.
tests.
or
be
seals.
us-
volt-
re-
conti-
taken
If
ELECTRICAL
CONTROLLER
(1)
troller,
(2)
body ground
(3)
be in the ON position. Refer to Fig. 4 for controller
terminal
voltmeter
the
speed
voltmeter
switch
battery voltage. If not, repair the main
necessary.
(4)
terminal
voltmeter
OFF position and battery voltage
the ON position.
TESTS
AT ENGINE
Unplug 60-way connector
located on the
left
fender (Fig. 3).
Connect negative lead of voltmeter to a good
near
the module.
For the
following
tests,
the
locations. Touch the positive lead of the
to the terminal in cavity number 33.
control switch in the OFF position, the
should read 0 volts.
With
in the ON position, the voltmeter should read
Touch the positive lead of the voltmeter to the
in cavity number 53. As in
should read 0 volts
with
7
Tests
4
Test
5
intermittent
ground.
the red tracer of
with
red tracer.
from
the servo
not,
replace the servo.
(BK)
from
the engine con-
ignition
switch must
the
speed
harness
step
the switch in the
with
the switch in
page
or
With
wire
harness.
With
control
as
(3), the
Page 22
•
A VACUUM
y-
HOSE
SPEED
CONTROL
SYSTEM 8H -
5
Fig. 2 Servo
And
Harness Connector
J918H-25
0 ooooooooo
1 10,
oooooooooo
x
3
\2L
IE
Fig. 4 Engine Controller 60-Way Connector Shown
(6)
Touch the positive lead of the voltmeter to the
utar
terminal in cavity
read 0 volts
with
°50|
from
Terminal
number
the
speed
the OFF or ON position.
SUME
battery
switch
the main
terminal in cavity
read 0 volts
With
shouldtinue to
RESUME switch is
control switch
check
or
SET position,
voltage.
test.
harness
(7)
Touch the positive lead of the voltmeter to the
If
not, perform
If the switch
and
repair
number
with
the
switch
the switch in the ON position, the voltmeter
read
read
battery
battery
voltage. The voltmeter
voltage when
pressed.
test.
If the switch is not
the main
(8)
Using an
harness
ohmmeter,
body ground and touch the
in
cavity
the
depressed,
meter
number
should
the
meter
29.
With
show
continuity. When the
should
OOOOOOOOOO
11
20
oooooooooo^
,C1 31
AO/
)OOOOOOOOO
umr
End
u
RR8HC7
50. The voltmeter should
control switch in
With
switch in
the
voltmeter should
the
is
not
at
fault, then
as
necessary.
speed
either
either
control
check
49. The voltmeter should
in the
OFF position.
will
either
If not, perform the
and
repair
connect
other
the
one lead to a good
lead to the terminal
brake
at
as
necessary
pedal
the SET or
speed
fault, then
released,
pedal
show
open
circuit.
RE-
read
con-
.
is
SINGLE
ENGINE
CONTROLLER
SPEED
CONTROL
SERVO
Fig. 3 Engine Controller
(5)
Touch the positive lead of the voltmeter to the
terminal in cavity
switch
in the
read
0 volts.
voltmeter should
OFF position,
With
read
SET button should
from
battery
switch
is
switch
test.
the main
voltage
held.
If
If the switch
harness
and
Connector Location
number
48.
With
the
speed
the
voltmeter should
the switch in the ON position, the
battery
cause
to 0
not, perform
and
repair
voltage.
the
volts for
is
not
as
Pressing
voltmeter
the
at
to
as
long
speed
fault, then
necessary.
BOARD
J918H-29
control
the
change
as the
control
check
SPEED
mounting position. Use an
Switch Continuity
correct.
switch positions,
STOP
switch. Using
checked
(Fig.
•
To
check
CONTROL
the
SWITCH
switch,
remove
ohmmeter
If
there
LAMP SPEED
(1)
Disconnect
at the switch
Chart
is
replace
the
an
to
no continuity
the switch.
CONTROL
connector
ohmmeter,
side
of the
5):
(a)
With
the
be no
brake
resistance
pedal
between:
the black (BK) and white
TEST
the
determine
SWITCH
at the
continuity
connector
released,
with
red
wires
•
the yellow
•
dark blue
•
pink (PK) and white (WT) wires.
with
with
red
red
tracer
tracer
(YL/RD)
(DB/RD) wires
switch
from
and refer to the
if continuity is
at
any one of the
TEST
stop
may be
as follows
there
tracer
(WT/PK)
its
lamp
should
Page 23
8H - 6
SPEED
SPEED
CONTROL
CONTROL
SWITCH
CHART
SYSTEM
CONTINUITY
— —— — — 4
CONNECTOR
SPEED
SWITCH
POSITION
OFF
ON
ON AND
ON AND RESUME
SET
TERMINAL
SWITCH
CONTROL
CONTINUITY
SWITCH
CONTINUITY
END
PIN 1 AND
PIN 1 AND
PIN 1 AND
PIN 2 AND
PIN 1 AND
PIN 1 AND
BETWEEN
PIN
4
PIN
4
PIN
2
PIN
4
PIN
2
PIN
3
18PK
Fig.5 Stop
STOP LAMP
CONTROL
SPEED
Lamp
AND
SWITCH
CONTROL
Switch
18WT
SPEED
WITH
Connector
J908H-8
(b)
With
brake pedal
continuity
wires.
(BK)
There should
with
tracer
(2)
If the above results
lamp
switch
Stop lamp
-
Brakes.
VACUUM
(1)
Disconnect vacuum
a vacuum gauge
(2)
Start engine and observe gauge
gauge should read
(3)
If
between
There should be no
and
white
with'
be no
red
tracer
(YL/RD)
(DB/RD)
is
defective
wires.
switch
-
SUPPLY
TEST
in
at
vacuum
does
check for vacuum leaks
depressed,
pink
red tracer
continuity
are not
or
adjustment
hose
the
hose
least
not
or
918H-14
there should
(PK)
continuity
and
between black
(WT/PK)
between
and
dark blue
obtained,
out
of adjustment.
is
detailed in Group
at
the servo and
(Fig.
6).
at
idle.
ten
inches of mercury.
white
the
with
be
(WT)
wires.
yellow
red
the
stop
install
Vacuum
meet this requirement,
poor engine performance.
5
Fig. 6 Vacuum
Gauge
Test
Page 24
SPEED
C0IT10L
SYSTEi
8H - 7
SPEED
to
CONTROL CABLE ATTACHMENT—ENGINE
(1)
The clevis of the
the bellcrank by a washer and
(2)
Visual
inspection
speed
will
control
verify
cable is retained
hairpin
that the cable is
clip.
securely attached. If the cable is not attached, the
speed
control
SPEED
CONTROL
The
speed
with a wire
verify-
that the
the
speed
system
control
clip
clip
control
will
be inoperative.
CABLE
ATTACHMENT-SERVO
cable is attached to the servo
(Fig.
7). A check should be made to
is in place. If the
system
will
be inoperative.
clip
is missing
Fig. 7 Speed Control Cable Attachment
at
Servo
Page 25
8H - 8 SPEEI
CONTROL
SYSTEi
•
SERVICE
SERVO
UNIT
REMOVAL
,
(1) Disconnect vacuum
(2)
Disconnect
(3)
Remove 2 nuts
(4)
Pull
servo away
(5)
Remove and discard push nuts on servo studs.
(6)
Pull
speed
pose
cable retaining
(7)
Remove
INSTALLATION
(1)
With
in
cable sleeve
taining
mounting
N*m
clip.
(2)
Insert servo
(3)
Install
(4)
Insert servo
bracket. One stud mounts reservoir,
(5)
Install
(50 in.
(6)
Connect vacuum
(7)
Connect the
electrical
control
clip
attaching cable to servo.
bellcrank
with
studs
new push nuts on the servo studs.
the 2 attaching nuts and
lbs.).
electrical
hose
at
servo.
connector
from
servo
from
mounting
cable away
at
servo.
mounting
bracket.
from
bracket.
servo
clip.
pivoted
full
rearward
hole in servo pin and
through holes in the cable.
studs
through holes
tighten
hose
to servo.
connector to servo
align
install
in
nals.
PROCEDURES
(7)
Install
(8)
Install
crank
rod.
SPEED
REMOVAL
(1)
Disconnect battery negative cable.
(2)
to
ex-
hole
re-
servo
to 6
termi-
Remove 2 screws
wheel
(3)
Rock
switch
(4)
Disconnect 4-way
clockspring.
cable end on bellcrank rod.
washer and
CONTROL
hairpin
SWITCH
from
(Fig.
1).
switch
away
from
out of steering wheel.
electrical
COVER
STEERING
clip
on end of
back side
horn
pad
while
connector
HORN
of
steering
bell-
lifting
from
SERVO
REMOVAL
THROTTLE
(1)
Remove
CABLE
hairpin
ASSEMBLY
clip
and washer retaining
bles on bellcrank. Remove servo
bellcrank.
Position the intercooler inlet duct to the turbo-'
charger (Fig. 2).
With
the clamp in position, tighten
and
Gaskets
the clamp nut to 8 N-m (72 in. lbs.) torque.
(4)
Position the air intake pipe and the
exhaust
pipe onto the turbocharger (Fig. 1). Tighten the
clamps to 8 N-m (72 in. lbs.) torque.
(5)
Install the oil drain tube and oil supply line to
the turbocharger (Fig. 2).- Tighten the drain tube
bolts to 24 N-m (18 ft. lbs.) torque. Tighten the oil
supply line
(6)
Connect the cab
Tighten
(7)
Operate
fitting
nut to 15 N-m (11 ft. lbs.) torque.
heater
supply and return lines.
the line nuts to 24 N-m (18 ft. lbs.) torque.
the engine to check for leaks.
Fig.
5 Air
Inlet
Tube
and
Heater
Ground
(4)
Disconnect the air intake
heater
lines (Fig. 6). Remove the air intake
kets
(Fig. 6). Clean the mounting surface of the in-
Wire
power supply
heater
take manifold cover.
and
gas-
INTAKE
REMmmL
inlet
ground
MANIFOLD
(1)
Remove the intercooler outlet duct
COVER/AIR
INTAKE
tube (Fig. 5).
(2)
Remove the high
(3)
Disconnect and remove the air intake
pressure
fuel
wire (Fig. 5).
EXHAUST
HEATER
from
lines.
the air
heater
Fig.
6 Air
(5)
Disconnect the
from
the intake manifold cover (Fig. 7).
(6)
Disconnect the air temperature switch
Intake
charge
Heater
air temperature
intake manifold cover (Fig. 7).
(7)
Disconnect the
fuel
heater
ground wire
take manifold cover (Fig. 8).
(8)
Remove the manifold intake cover and
(Fig.
8). Keep the
terial
out of the air intake.
(9)
Clean the sealing surface.
gasket
material and any other ma-
sensor
from
the
from
in-
gasket
Fig, 4 fr'haust
Manifold
Bolt
Tightening
Sequence
Page 90
EXHAUST
supply
inlet
SYSTEM
(9)
Install
nuts
(10)
Position the intercooler outlet duct onto the air
tube
(Fig.
Ail
INTAKE
MANIFOLD
and tighten the air intake
to
14 Nrn (10 ft. lbs.) torque.
5). Tighten the intercooler outlet duct
clamps to 8 Nun (72 in. lbs.) torque.
(11)
Install
Tighten
and bleed the
the
high
pressure
high
fuel
pressure
line
nuts
(18 ft. lbs.) torque.
TURBOCHARGER
REMOVAL
.
(1) Disconnect the battery negative cables.
(2)
Disconnect the air intake pipe and exhaust pipe
(Fig.
9).
11 - 3
heater
fuel
to 24
power
lines.
Nun
Fig. 7 Charge
INSTALLATION
(1)
Using a new
Mir
Temperature Sensor
Temperature Switch
gasket,
install
cover (Fig. 8).
(2)
Install
Tighten
(3)
Connect
take
manifold
(4)
Connect
the intake
(5)
Some
drilled
flon
sealant
the
fuel
heater
the
bolt
to 12 N-m (110 in. lbs.) torque.
the air
temperature switch
cover (Fig. 7).
the
charge
manifold
air
cover (Fig. 7).
of - the intake
through and must be
to
the bolts.
Install
manifold
cover bolts. Tighten the bolts
torque.
(6)
Install
heater
a new
(7)
Install
air
inlet
(8)
Connect the intake
(Fig.
5).
MANIFOLD
INTAKE
a new
and the intake
gasket
on
the air
tube bolts
gasket
manifold
top
of the air intake
inlet
tube (Fig. 5). Tighten
to
24
N*m
between
manifold
FUEL HEATER
GROUND
and
the intake
ground
wire
manifold
(Fig.
to the
temperature
sealed.
the intake
to
24 N-m (18 ft. lbs.)
bolt
Apply
sensor
holes
liquid
manifold
the air
cover
(Fig.
6).
heater
(Fig.
(18 ft. lbs.) torque.
heater
ground
Mir
8).
in-
to
are
te-
intake
Install
6).
the
wire
WIRE
Fig.
9 Air
(3)
Remove the oil drain tube bolts.
(4)
Remove the oil supply
(5)
Disconnect
Intake
Pipe,
Turbocharger
the
intercooler
Exhaust
line
(Fig. 10).
inlet
turbocharger (Fig. 10).
(6)
Remove
the
turbocharger mounting nuts
the turbocharger.
(7)
If the turbocharger
diately,
falling
cover
the
into the
(8)
Clean and inspect the sealing surface.
manifold.
is
opening
not to be installed imme-
to
prevent material
Pipe
duct
and
from
the
and
from
Fig. 8 Manifold Intake Cower
Ground
Wire
and
Fuel
Heater
DISASSEMBLY
(1)
Scribe the housing so they can be assembled in
the
same
position.
(2)
Clamp the turbocharger in a bench vise.
Page 91
11
- 4
EXHAUST
SYSTEM
AID
INTAKE
MANIFOLD
ring
Fig.
12
Diffuser
and
(10)
Remove the oil slinger and discard the piston
(Fig.
13).
(11)
Inspect for cracks and excessive wear.
Lockplate
Fig.
10 Oil
(3)
Remove the compressor housing
(Fig.
11).
(4)
Remove the compressor housing and inspect for
impeller
(5)
Remove the
(6)
Remove the
peller
nut to the
have
left
Fig.
(7)
Remove the
Supply
Line
contact
(Fig.
11).
square
impeller
right
hand threads.
11
Compressor
Homing
impeller
and
Intercooler Inlet Duct
cut
nut
O-ring
(Fig.
V-Band
(Fig.
11).
11).
Turn
clamps
the
im-
to loosen. The nut and shaft
and
Impeller
and inspect the blades for
damage. The wheel and shaft assembly is balanced
as a
unit.
If
the
impeller
sembly
12).
(Fig.
must be replaced.
(8)
Remove the diffuser bolts and lockplate (Fig.
~
(9)
Remove the diffuser and discard the
13).
is damaged the complete as-
O-ring
O-RING
(Fig.
clamp
OIL
Fig.
13
Diffuser,
(12)
Remove the oil
(13)
Remove the thrust bearing and retainer screws
14). Do not
(14)
Remove the thrust
(15)
Inspect the
(16)
Remove the turbine housing
plates
(17)
Remove the bearing housing
(18)
Remove the turbine shaft and
(Fig.
Q-Ring
baffle
(Fig.
reuse
the thrust bearing.
collar
collar
for excessive wear.
15).
and Oil
14).
(Fig.
14).
lock
(Fig.
heat
Slinger
plates and
15).
shield (Fig.
16).
(19)
Inspect the turbine blades and the shaft for ex-
cessive wear.
(20)
Remove and discard the piston
(Fig.
16).
ring
type seal
Page 92
•
EXHAUST
(28)
17).
SYSTEM
Fig.
17
Snap Rings
AND
INTAKE
and
MANIFOLD
Shaft Bearing
Remove and'discard the inner
snap
rings (Fig.
11 - 5
J9111-14
Fig.
15
Turbine Housing Lock Plates
Plates
Fig,
IS
Turbine Wheel Shaft
CAUTION:
anced
damaged,
(21)
Remove and discard the outer retainer rings
(Fig.
17).
(22)
Remove and discard the turbocharger shaft
as a
The
unit.
the
complete
wheel
If the
and
turbine
assembly
and
shaft
and
Heat Shield
assembly
blades
must
or
shaft
be
replaced.
bearings (Fig. 17).
Clamp
is
bal-
are
CLEMMING
Use a
stiff
bristle
all
parts. Do not use a
wheel.
a
sene
to
INSPECTION
sembly,
Do not bead blast the parts.
Remove
scraper
Polish
the,
and
the bearing surfaces
or diesel
After
rinsing
dry the parts.
In
addition to the inspection specified during disas-
inspect all parts after cleaning.
nylon
brush and solvent to clean
wire
brush on the compressor
carbon
a-240
build
grit
up
emery
with
from
the housing
cloth.
crocus and kero-
fuel.
in clean solvent, use compressed air
Measure the shaft bearing diameter (Fig. 18). The
minimum
diameter should be 10.97 mm (0.432
SHAFT
BEARING
J9111-15
Fig.
18
Shaft Bearing Diameter
inch).
with
Page 93
11 - e
EXHAUST
SYSTEM
AND
INTAKE
MANIFOLD
0
ASSEMBLE
The balance marks must be aligned to make
the wheel and shaft assembly is balanced.
(1)
Install
with
engine oil.
(2)
Install
TURBINE
SHAFT
Fig.
(3)
Clamp a socket in a soft jawed vice and position
19
the piston
the
heat
BREAKING,
HOUSING
Turbine
Shaft/Heat
ring
and lubricate the groove
shield (Fig. 19).
HEAT
SHIELD
Shield
Housing
to
Bearing
the shaft in the socket.
(4)
Install
the inner retainer rings. The beveled
face must be towards the bearing (Fig. 20).
RETAINING
sure
J9111-18
INNER
RING
Fig.
21
(10)
Install
alignment.
(11)
Install
slinger
(Fig. 22).
Beveled
Face
the oil
the piston
of
Outer
Retainer Ring
baffle.
Check the balance mark
ring
type
seal
OUTER
RETAINING
RING
J9111-17
on the oil
PISTON
RING
TYPE SEAL
Fig.
20
Beveled
(5)
Lubricate the turbocharger bearing
oil
and
install
(6)
Install
the outer retainer
Face
of
Inner Retainer Ring
with
the bearings in the housing.
ring.
The beveled face
engine
must be towards the bearings (Fig. 21).
(7)
Assemble the turbine shaft and
heat
shield to
the bearing housing (Fig. 19). Rotating the housing
as you
the piston
mark
top surface
verified
and
to
press
downward
will
assist
ring.
(8)
Install
with
(9)
Lubricate the thrust bearing
install
the thrust collar.
the balance mark on the shaft.
with
a marker pen so alignment can be
after
installing
the thrust bearing.
it on the housing. Tighten the torx bolts
4.5 Nun (40 in. lbs.) torque.
in properly seating
Align
the balance
Mark
with
engine oil
the
OIL
SLINGER
Fig.
22
Piston
Ring
Type
Seal
(12)
Mark
with
the balance mark.
(13)
Lubricate the oil slinger
install
(14)
Install
(15)
Install
on
the shaft and the oil slinger (Fig. 23).
(16)
Align
ler
(Fig. 24). Be careful not to move the bearing
the top surface of the oil slinger
with
it into the diffuser.
the O-ring into the diffuser.
the diffuser.
Align
the balance marks
the balance mark and
engine oil and
install
J9111-19
the
line
impel-
housing.
(17)
Do not
ing
the nut. The impeller nut and the shaft
LEFT
hand threads. Tighten the nut to 14 Nun (129
in.
lbs.) torque.
(18)
Install
turbine
(19)
Align
(20)
Apply
(21)
Install
(Fig.
26). Tighten the bolts to 11.3 Nun (100 in. lbs.)
allow
the impeller to
turn
when
the bearing housing assembly into the
housing (Fig. 25).
the scribe marks (Fig. 25).
anti-seize compound to the
the clamp plates,
lock
bolt
plates and bolts
install-
have
threads.
torque.
Page 94
EXHAUST
SYSTEM
AND
11 - 7
Fig.
23
IMPELLER
Align
Balance
DIFFUSER
ALIGN
BALANCE
MARKS
Marks—Shaft
and Oil
J9111-20
Slinger
DIFFUSER
J9111-23
Fig.
26
Install
Clamp
Plates/Lock
LOCK
PLATE
Plates
Fig.
TURBINE
HOUSING
BEARING
HOUSING
Fig.
25
Bearing
(22)
Install
fuser (Fig.
(23)
After
lbs.)
torque, bend
Be
sure
the
24
Align
Balance
Housing
the
lock
27).
tightening
the
scribe marks
DIFFUSER
Marks—Impeller
\
Assembly/Turbine
plates
lockplate
the
are
and
bolts
to 5.7
tabs
aligned.
bolts into
to
J9111-21
ALIGNMENT
'
MARKS
J9111-22
Housing
the
N-m
lock
the
ALIGN
BALANCE
MARKS
dif-
(50 in.
bolts.
TURBINE
HOUSING
Fig.
27
Diffuser
(24)
Measure
charger
play
with a serial number before 840638
should
For turbocharger
after
the end
0.003
inch).
(25)
Measure radial
The
clearance
the
end
be
0.102-0.152
with a serial number of 840638 and
play should
clearance
should
be
inch).
(26)
(27)
Install
Be
sure
the
the
square
scribe marks
the compressor housing
anti-seize compound
Tighten
against
ence.