Auto Meter 2312 User Manual

INSTALLATION INSTRUCTIONS

®

25/8” GAUGES

by

MODEL 2310, 2311, 2312, 2313, 2314, 2315, 2316, 2317,

®

2318, 2319, 2320

2650-560

Preliminary Steps

1. Read instructions thoroughly. The installation of this product
requires the expertise of a trained automotive mechanic. Please

consult a qualified mechanic if you have not had training in the proper
installation of instruments.

2. Determine ideal mounting location. Choose a location that will not
obstruct visibility or impair driving. Consult your vehicle’s repair manual
to locate: A) water temperature port

B) 12V ignition switch or fuse box
C) oil pressure port

3. Consult your vehicle’s manual to determine the best route for tubing to
follow. Choose a path free from hazard of moving parts or hot engine
components.

4. Assemble tools and parts required for installation.

5. Disconnect negative (-) battery cable. (Wear safety glasses) Do not
allow cable to touch battery or any metal. (NOTE: Disconnecting battery
ground may require you to re-program your radio station and clock after
re-connection).

CAUTION: Some late model vehicles use electronic sensors in their

pressure and temperature senders for engine control functions. Before
removing the original senders, we recommend that you contact your Auto
Dealer to be sure no critical functions will be disrupted.

n With pressure gauges, it is beneficial to add a T-fitting to install your

new gauge and to keep the warning light operational. This allows you to
monitor the pressure and still have a warning light to indicate emergency
conditions.

Important Assembly Procedures To Follow

1. Tighten nuts and lock washer that secure the gauge mounting bracket.
Be sure they are not so tight as to bend or distort mounting bracket.

2. Electrical Connections

Install additional wiring and hardware as shown in diagrams to follow.

Now tighten the outer nut while holding the inner nut. This is the
only correct procedure and must be followed to insure safe electrical
connections. This applies to both the gauge and sender connections.

3. Make sure wires are not rubbing against metal or each other.

NOTE: Install gauges when engine is cool.

Snap-On Chrome Bezel

Temperature

Engine

MODELS 2313 & 2314

Use Teflon Sealing Tape
Or Sealing Compound
On Pipe Threads.

Temperature
Sensing Bulb

1

⁄2” NPT Mounting Nut (For

3

⁄8” NPT Use No. 2370)

An additional snap-on
chrome bezel is provided
with this gauge kit to
allow for custom styling
of gauge.
For light replacement
use Auto gage
replacement bulb
No. 2389

Sealing Nut

To 12V Dash
Lighting Circuit

Rubber Grommet

Sealed Tubing

Model
3231

Model
3232

Light (installed)

Model
3233

Mounting Options

One, two and three-hole
black panels are available for
mounting gauges under dash.

Black Bezel

U-Bracket

Snap-On
Chrome
Bezel

1. Gauge may be mounted in a 2 5⁄8” dia. dashboard hole, in Auto
gage mounting panels or in Auto gage mounting cups.

2. Cut a 7⁄8” dia. hole in firewall. Route temperature sensing bulb
through hole to engine compartment. Slit rubber grommet
provided and position in firewall hole so gauge tubing is held
firmly in place. If a gauge mounting cup is used install additional
grommet in back of cup in same manner.

3. Thread mounting nut into the 1⁄2” or 3⁄8” NPT port on engine.
Insert temperature sensing bulb in mounting nut and carefully
tighten sealing nut. Make sure tubing is free from moving parts
or hot engine components. The 2314 Oil Temperature Gauge
usually requires drilling a hole and brazing the 1⁄2” NPT mounting
nut into the oil pan. Check for adequate internal clearances for
temperature sensing bulb in the oil pan before drilling any holes.
Install temperature sender as described above.

NOTE: Use teflon sealing tape or sealing compound to assure

proper seal on all pipe thread joints (NPTF).

4. Start engine and inspect installation for any leaks.

5. Snap-in light socket assembly and connect to dash lighting
circuit or other 12 volt power source.

IMPORTANT: Should you ever need to remove the temperature

sensing bulb, loosen the sealing nut without allowing the
mounting nut to rotate. Failure to follow this procedure may
result in internally broken capillary tubing, which would void the
warranty.

Fuel Level

NOTE: For the following installation THE GAS TANK MUST BE FULL!

1. Disconnect negative (-) battery cable. (Wear safety glasses)

2. Gauge uses vehicle’s stock sender in fuel tank. Existing wires may be
used or route proper length of 18-gage, 2 conductor wire from fuel tank
to gauge. Connect one end to terminal post on fuel level sender and the
opposite end to the sender terminal post (S) on back of gauge. See
figure.

3. Connect wire from negative (-) terminal post on back of gauge to ground
on fuel tank.

4. Connect wire from ignition switch to the positive (+) terminal post on back
of gauge. See figure on right. CAUTION: Be careful not to touch ignition
wire to the sender terminal (S). This will damage the sender.

5. Snap-in light socket assembly and connect to dash lighting circuit or to
other 12 volt light source. If dash is metal, a ground connection for light
is made when gauge is mounted with brackets provided. If dash is non­metallic (or if gauge is cup mounted), a separate ground wire must be
connected from gauge case stud to a good ground.

6. Reconnect negative (-) battery cable and check reading.

MODELS 2315, 2316, & 2320

Gauge Specifications

This gauge is designed to operate with the original sender in the vehicle’s fuel

tank. To insure accurate gauge readings, it is important to measure the
resistance (ohms) of the sender with an ohmmeter at full and empty tank
conditions. Consult table for proper gauge application for your vehicle.

NOTE: Production tolerances in the resistance of some vehicle’s tank

senders may cause the gauge to read incorrectly when tank is full.

Light (installed)

U-Bracket

To 12V Dash
Lighting Circuit

Connect To

Terminal Post

On Stock Sender

In Fuel Tank

APPLICATION

FORD/CHRY. 8 to 12 73 2315

GM

No. 3262 sender

SENDER RESISTANCE (OHMS)

Light (installed)

S

Ground To Fuel Tank

90 0

33 240

Black
Bezel

Snap-On
Chrome
Bezel

U-Bracket

To 12V Ignition Switch

Gauge

EMPTYFULL

Model No.

2316

2320

Installation

IMPORTANT: The 2311 Fuel Pressure gauge must be mounted outside

of the vehicle’s interior, such as on the cowling in front of the
windshield. This is required to prevent the possibility of fire or
explosion in vehicle interior.

1. Determine best location for mounting the Fuel Pressure gauge on
vehicle’s exterior. Mounting cup kits are available for mounting gauges
on vehicle’s cowling in front of windshield. Drill necessary hole and install
rubber grommet where pressure line passes through sheet metal.

2. Braided stainless steel tubing is recommended because of the highly
flammable nature of racing fuel. DO NOT USE NYLON OR COPPER
TUBING WITH COMPRESSION FITTINGS.

Fuel Pressure

MODEL 2311

WARNING

NOTE: This gauge must be mounted
outside of vehicle to prevent possibility
of dangerous explosion of gas fumes
in vehicle interior.

FOR FUEL PRESSURE IT IS
STRONGLY RECOMMENDED
THAT BRAIDED STAINLESS
STEEL PRESSURE LINE IS
USED. AUTO METER NO. 3227.

Adaptor

Right
Angle
Fitting

Rubber Grommets

3. Route pressure line through grommet to engine
compartment, keeping line free from hot engine
components or moving parts. Plumb line into vehicle’s fuel
line. Be sure to use teflon sealing tape or compound on all
tapered threads for a good seal.

4. Start engine and thoroughly check for any leaks.

5. Snap-in light socket and connect wire to dash lighting
circuit or to other 12 volt source. A separate ground wire
should be attached to gauge case stud and to ground.

Light
(Installed)

3227 3 Foot Stainless
Steel Pressure Line

Black Bezel

Snap-On
Chrome
Bezel

Ground Wire
Connected to Stud

To 12V Dash
Lighting Circuit

DO NOT USE
NYLON TUBING OR
COMPRESSION
FITTINGS.

Adaptor

Use Teflon Sealing Tape Or Sealing
Compound On Pipe Threads.

ADAPTER

USE TEFLON SEALING
TAPE OR SEALING
COMPOUND ON
PIPE THREADS

4" NPT ADAPTER

8" NPT ADAPTER

FOR PRESSURE
GAUGES ONLY

FOR VACUUM
AND BOOST
GAUGES ONLY

VACUUM HOSE

T-FITTING

FERRULE

SEALING NUT

CONNECT TO

12V LIGHTING

CONNECT TO

GOOD GROUND

GROMMET

NYLON TUBING

FERRULE

SEALING NUT

8" CONNECTOR

1

NYLON TUBING

1

1

SNAP-ON
BEZEL

BLACK
BEZEL

U BRACKET

Oil Pressure, Vacuum & Boost Gauges

MODELS 2310, 2312, 2317

1. Gauge can be mounted in 2 5⁄8” dia. dashboard hole in Auto
Meter mounting panels.

2. Drill a 3⁄8” dia. hole and install rubber grommet where pressure
or vacuum line passes through sheet metal, such as firewall.

3. BOOST, OIL PRESSURE, and VACUUM gauges require
attaching nylon pressure line or braided stainless steel
pressure line to port on back of gauge.

For BOOST, connect line to a manifold vacuum/pressure line

using the fittings provided with the gauge and pressure line kits.

For OIL PRESSURE, connect line to the appropriate pressure

port on engine.

For VACUUM, connect line to a manifold vacuum line using the

fittings provided with the gauge and pressure line kits.

4. To help prevent leaks, be sure the end of nylon tubing is cut
cleanly and straight. Slide compression nut onto tubing with
threads toward end of tubing. Next, slide ferrule onto end of
tubing, leaving 3⁄16” between ferrule and end of tubing. Insert
end of tubing into the 1⁄8” NPT male adaptor. Apply pressure
to maintain constant bond between end of tubing and inside
of adaptor. Slide ferrule into the adaptor then compression
nut. Tighten compression nut with 3⁄8” open-end wrench, while

NOTE: NYLON PRESSURE TUBING

MUST PROTRUDE OUT FERRULE

END. (APPROX.

holding adaptor firm with 7⁄16” open-end wrench. This should
form a tight seal between end of tubing and inside of adaptor.
To make sure it is a snug fit, tug lightly on nylon tubing to make
sure it doesn’t come out.

NOTE: Use teflon sealing tape or sealing compound to assure

proper seal on all pipe thread joints (NPTF).

5. Make sure line is free from hazard of moving parts or hot engine
components. Where potential hazard exists, braided stainless
steel pressure line is recommended.

6. Snap in light socket assembly and connect to dash lighting or
other 12 volt light source. If dash is metal, a ground connection
for light is made when gauge is mounted with brackets
provided. If dash is non-metallic (or if gauge is cup mounted), a
separate ground wire must be connected from gauge case stud
to a good ground.

7. Wrap a clean rag around fittings on back of oil pressure gauge
and place a pan on floor under them to protect vehicle interior
from potential oil leaking. Start engine and run for 30 seconds.
Shut engine off and check rag or leaks If none appear, start
engine again and visually check all connections for leaks.

1

⁄16” TO 3⁄16”

Voltmeter

MODEL 2319

1. Disconnect the negative (-) battery cable. (Wear safety glasses)

2. Auto Meter wire kit No. 2217 (18-gage) is recommended. Route one length
through firewall using grommet. Attach one end to the left hand terminal (-)
on back of gauge and the opposite end to a good engine ground.

3. Attach one length of wire to the right hand terminal (+) on back of gauge
and opposite end to 12 volt terminal on ignition switch or to any 12 volt
source.

4. Snap-in light socket assembly and connect to dash lighting circuit or to
other 12 volt source. If dash is metal, a ground connection for light is made
when gauge is mounted with brackets provided. If dash is non-metallic (or
if gauge is cup mounted), a separate ground wire must be connected from
gauge case to a good ground.

5. Reconnect negative (-) battery cable.

To 12V Dash
Lighting Circuit

Grommet

Ground To
Engine

Light (installed)

U-Bracket

To 12V Terminal
On Ignition
Switch Or Other
12V Source

Ammeter MODEL 2318

Read before installing:

To
Starter

WARNING:

VEHICLE SYSTEM II

JUNCTION BOX

Battery Terminal

AMMETER

Crimp

Connector

B

To Starter Solenoid

Have your maximum alternator output tested by an experienced
mechanic. Choice of improper ammeter rating and/or wire size,
and any loose connections can cause dangerous overheating,
which could cause a fire in your vehicle. Ammeter and wire
should have a capacity of at least 10 amps more than your
vehicle’s maximum alternator output.

VEHICLE SYSTEM I

Use nut & bolt

AMMETER

BAA

(Back
View)

to reconnect
electrical system
wires

IMPORTANT

Wrap connection

with elec. tape

SOLENOID

Star-Lockwasher

Flat-Washer

U-Bracket

1. Read instructions thoroughly. The installation of this product requires the
expertise of a trained automotive mechanic. Please consult a qualified
mechanic if you have not had training in the proper installation of an
ammeter.

2. Determine ideal mounting location. Choose a location that will not
obstruct visibility or impair driving movement.

3. Examine your vehicle to determine the best route for wiring to follow.
Choose a path free of hazard of moving parts or hot engine components.

4. Disconnect negative (-) battery cable. (Wear safety glasses.)

5. Hold panel in desired mounting location. Use panel as template and mark
holes to be drilled for mounting.

6. Drill holes with

9

⁄64” drill bit and attach panel with screws provided.

7. Auto Meter No. 2228 wire kit must be used for installation. Kits contain a
premium grade wire required for safe installation.

8. IMPORTANT: Verify that the nuts on both meter terminals are tight.
Follow wiring diagram for car system I or II, and connect ammeter as
illustrated.

CAUTION

DO NOT CONNECT THE AMMETER ACROSS THE BATTERY.

9. IMPORTANT:Terminal lugs must be BOTH crimped and soldered to the
wire, and star lockwashers must be used on both sides of the terminal
lugs.

10. Tighten terminal nuts to compress star lockwashers into the terminal lugs.

11. Verify that

none of the ammeter connections are to ground.

12. Secure gauge in mounted panel using non-insulated mounting bracket,
two (2) lockwashers, and two (2) #10 nuts.

13, Snap-in light socket assembly into back of gauge. Connect red lighting

wire to 12V power source in dash lighting circuit. Connect the black wires
to good engine ground (such as body frame bolt).

14. Reconnect negative (-) battery cable.

15. Leaving engine

off, turn on lights. Indicator should read negative (-). If it
reads positive (+), disconnect neg. battery terminal and reverse the wires
on back of meter, then reconnect neg. battery terminal. Before starting
car, double check that all connections are tight. After starting engine,
check wiring connections for hot spots. Be prepared to shut engine off

immediately if hot spots are detected.

AMMETER

Snap-On

Chrome

Steel Panel

Bezel

Make Ammeter
electrical connections
as illustrated in Vehicle
System diagram I
or II above.If neither
diagram matches
your electrical system,
consult your service
manual or qualified
mechanic.

Rubber

Grommet

in Firewall

Nut

Split-Lockwasher

To 12V Lighting Circuit

Nut

A

Underside

View

B

Star-Lockwasher

Terminal Lug

Final Procedures (For All Gauges)

1. Insert light bulb and socket assembly into back of gauge. Connect red
lighting wire to 12V power source in dash lighting circuit. Connect black
wires to good ground, such as dash or chassis ground bolt.

Service

For service send your gauge to Auto Meter in a well packed shipping carton. Please include a note explaining what the problem is, the year and model of your vehicle, engine size,
etc., and your phone number. If you are sending a gauge back for Warranty adjustment, you must include a copy (or original) of your sales receipt from the place of purchase.
NOTE: For light bulb replacement, order Autogage No. 2389

The manufacturer warrants to the consumer that this product will be free from defects in materials and workmanship for a period of twelve (12) months from the date of the original purchase. Products
that fail within this 12 month warranty period will be repaired or replaced at the manufacturer’s option to the consumer, when determined by the manufacturer that the product failed because of defects
in material or workmanship. This warranty is limited to the repair or replacement of parts in the instrument and the necessary labor done by the manufacturer to affect the repair or replacement of the
instrument. In no event shall this warranty exceed the original purchase price of the instrument, nor shall the manufacturer be responsible for special, incidental or consequential damages or costs
incurred due to failure of this product. Warranty claims to the manufacturer must be transportation prepaid and accompanied with dated proof of purchase. This warranty applies only to the original
purchaser of product and is non-transferable. All implied warranties shall be limited in duration to the said 12 month warranty period. Breaking the instrument seal, improper use or installation, accident,
water damage, abuse, unauthorized repairs or alterations voids this warranty. The manufacturer disclaims any liability for consequential damages due to breach of any written or implied warranty on all
products made by the manufacturer.

12 MONTH LIMITED WARRANTY

2. Reconnect negative (-) battery cable. Re-program your clock and radio if
necessary.

FOR SERVICE CONTACT: AUTO METER PRODUCTS Inc. 413 W. Elm St., Sycamore, IL 60178 USA [phone] or

Email us at [e-mail]

© 2002 Auto Meter Products, Inc. 2650-560 3/4/02