Auto-meter 3674 User Manual download pdf

INSTALLATION INSTRUCTIONS

FULL SWEEP ELECTRIC PRESSURE GAUGES

2650-1134-00 Rev. B

12V BATTERY

SENDER

GOOD ENGINE

GROUND

GROMMET

+12v CONNECTION

RED

BLACK

+12v DASH

LIGHTING

GOOD

ENGINE

GROUND

WHITE

BLACK

Use teflon sealing compound sparingly

where symbol indicates. (Tape not

recommended on these threads.)

CAUTION!

As a safety precaution, the

+12V terminal of this product

should be fused before

connecting to the 12V ignition

switch. We recommend using

a 1 Amp, 3AG fast-acting type

cartridge fuse (Littlefuse

312 001 or an equivalent).

Installation - Nitrous Pressure

1. Check that you have all parts required for installation, and the

engine is cool.

2. Disconnect the negative (-) battery cable.

3. Gauge mounts in a 2

⁄8” hole for 2

⁄8” gauges, and a 2

⁄16” hole

for 2

⁄16” gauges. Use supplied brackets and nuts to secure

gauge to dash.

4. Drill 1” diameter hole where wires pass through sheet metal

(such as firewall) and install rubber grommet provided.

5. Connect the white wire to dash lighting or switchable 12v light

source, the red wire to switched +12V source and the black wire

to ground. (see diagram for details)

6. Make sure the nitrous bottle valve is closed and there is no

pressure in the system.

7. Remove the main nitrous feed line from the bottle or the nitrous

solenoid. Install the in-line gauge adapter (e.g. NOS part #16770

or #16771) either on the nitrous bottle or nitrous solenoid. Re-

install the main nitrous feed line. Install pressure sender and

wiring harness. For mounting off bottle in rear of car, use 20’

sender harness model 5223.

8. Open the nitrous bottle valve.

NOTE: Test all fittings and hoses for any leakage. If any leaks

are detected, determine the cause of the leak and

repair. Do not operate vehicle if any leaks are detected.

WIRING

HARNESS

FUSE

(SEE CAUTION LEFT)

In-Line

Gauge Adapter

Nitrous

Solenoid

OUT

Main Nitrous Feed

Nitrous

Bottle

Use teflon sealing

compound where

symbol indicates.

(Tape not

recommended on

these threads.)

FIREWALL

Installation - Fuel & Oil Pressure

1. Check that you have all parts required for installation, and the

engine is cool.

2. Disconnect the negative (-) battery cable.

3. Gauge mounts in a 2

⁄8” hole for 2

⁄8” gauges, and a 2

⁄16” hole

for 2

⁄16” gauges. Use supplied brackets and nuts to secure

gauge to dash.

4. Drill 1” diameter hole where wires pass through sheet metal

(such as firewall) and install rubber grommet provided.

(Grommet will require slit.)

5. Connect the white wire to dash lighting or switchable 12v light source,

the red wire to switched +12V source and the black wire to ground.

(see diagram for details)

CAUTION: If you will be working with the fuel system, take care to

insure no sparks or flames occur. Do not smoke while installing the

fuel pressure sender.

WARNING: The fuel system is pressurized and often retains this

pressure for an extended period of time. Properly vent

your fuel system before installing the fuel pressure sender.

If you are not familiar with the proper method of venting,

you MUST have this done by an experienced mechanic.

NOTE: When the ignition is off the pointer may not always

rest at zero.

WARNING: Not compatible with Nitromethane, Methanol,

or 100% MTBE.

6. [For oil pressure gauge installation, an optional

⁄4” NPT adapter

is included. For fuel pressure gauge, install the

⁄8” NPT pressure

sender into the fuel system (See caution below). For Ford fuel injected

applications with a Schrader valve in the fuel rail, use adapter 3280

between the fuel rail and pressure sender.]

If unit is to be installed on a high vibration application such as a full race

engine or engine capable of high RPM, it is strongly recommended that

the sender be remote mounted to either the fenderwell or firewall, to

insulate from vibration. Failure to remote-locate pressure senders

on such an application could result in gauge failure and potential

damage to vehicle and/or operator injury. Braided stainless steel lines

are sold separately by Auto Meter, and can be used to accomplish this.

8. Reconnect negative (-) battery cable.

OPTIONAL

SLIT TUBING

RECOMMENDED

(AVAILABLE AT MOST

HARDWARE STORES)

Check with

your nitrous kit

manufacturer

for availability

of this adapter.

(for standard incandescent

lit instrument)

FOR INTERNAL LED

LIT INSTRUMENTS

WHITE

+12v DASH

LIGHTING

NOTE: Test all fittings and hoses for any leakage. If any leaks are

detected, determine the cause of the leak and repair. Do not

operate vehicle if any leaks are detected.

ATTENTION DODGE DIESEL OWNERS: If using on ‘98-’02 (some

‘03) Cummins diesels, you MUST use #3227 Line Kit and #3279

restrictor to prevent premature failure of sender. Failure to do so will

void warranty.

1 2

Summary of Contents

Page 1 - INSTALLATION INSTRUCTIONS

INSTALLATION INSTRUCTIONSFULL SWEEP ELECTRIC PRESSURE GAUGES2650-1134-00 Rev. B12V BATTERY SENDERGOOD ENGINE GROUNDGROMMET+12v CONNECTION REDBLACK+12

Page 2 - Installation - Brake Pressure

Power-UpThe pointer will move backward to the stop pin and then move to the zero box. This procedure is an auto-calibration function and is performed

Comments to this Manuals

No comments

Auto-meter 3674 User Manual

Browse online or download User Manual for For the car Auto-meter 3674. Auto Meter 3674 User Manual

Summary of Contents

Comments to this Manuals

Related products and manuals for For the car Auto-meter 3674