Auto Meter 4701 Installation Instructions

INSTALLATION INSTRUCTIONS
MECHANICAL GAUGES
2650-1606-00 Rev. B
If after completely reading these instructions you have questions regarding the operation or installation of your instrument(s), please contact Auto Meter Technical
Service at 866-248-6357. You may also email us at service@autometer.com. Additional information can also be found at http://www.autometer.com
To maintain proper calibration during shipping, the pointer of this gauge is held off zero by a plastic "pin" inserted into the gauge case and movement. This pin
Plastic Pin
VENTING FOR LIQUID FILLED GAUGES ONLY
Auto Meter's Pro Comp Liquid Filled Gauges are equipped with a vent screw on the top
of the case. Internal case pressure can change due to altitude, barometric pressure, and
temperature, causing an inaccurate or "off zero" reading on more sensitive low pressure
gauges such as 0-15 psi fuel pressure, vacuum, boost, and vacuum/boost gauges. To prevent
this it is recommended that the gauge be vented.
With the vent screw in the upright position, turn the screw two turns counterclockwise to
equalize the gauge case pressure. This allows the gauge to breathe and self adjust.
Note on Ultra-Nite (Glow In The Dark)
The glow in the dark coating on the dial of the Ultra-nite gauge may turn gray if exposed to direct sunlight for extended periods of time. When the car is not being used
and will be in direct sunlight for long periods of time, place the provided red plastic cover on the gauge.
LED REPLACEMENT KITS ARE SOLD ONE PER PACKAGE
3284-Red LED Replacement Kit, 3285-Green LED Replacement Kit, 3286-Blue LED Replacement Kit, 3287-Amber LED Replacement Kit, 3288-White LED Replacement Kit
Metric Adapters
If this product is to be installed on a vehicle requiring metric fittings, please contact your local Auto Meter dealer to purchase metric adapters. A complete listing of the fittings available
can be found in our catalog or online at http://www.autometer.com
PRESSURE, VACUUM & BOOST GAUGES
ADAPTER
FOR BOOST/
VACUUM GAUGES
ONLY
T-FITTING
FOR PRESSURE
GAUGES ONLY
FERRULE
1
4" NPT ADAPTER
FOR VACUUM
GAUGES ONLY
T-FITTING
NOTE: Some late model vehicles use electronic sensors in their pressure and
temperature senders for engine control functions. Before removing the original
sender, we recommend that you contact your automotive dealer to be sure
no critical functions will be disrupted. 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.
1. Gauges may be mounted in In-dash holes, or in Auto Meter custom mounting
Solutions. Secure gauge with mounting clamps supplied. 2-1⁄16"gauges mount in
2-1⁄16" diameter hole, 2-5⁄8" gauges mount in 2-5⁄8" diameter hole.
2. Drill 3⁄8" dia. holes and install rubber grommet where pressure or vacuum line
passes through sheet metal, such as firewall.
ON MECHANICAL VAC/BOOST GAUGES
MUST BE REMOVED and discarded prior to installation and operation
CONNECT TO
12V LIGHTING
COMPRESSION
CONNECT TO
FERRULE
NUT
GOOD GROUND
SMALL
GROMMET
OR
FERRULE
COMPRESSION
NUT
COMPRESSION
OR
FERRULE
NYLON TUBING
1
8" NPT ADAPTER
VACUUM HOSE
1
"
8 CONNECTOR
NYLON TUBING
QUESTIONS:
Remove
GAUGE READING
1 PSI Low
1 PSI High
LOCK WASHER
THUMB NUT
FERRULE
MOUNTING
BRACKET
PORT NUT
OR
NUT
NOTE: DO NOT
ADAPTER
LOOSEN PORT NUT
OR GAUGE MAY BE
DAMAGED.
USE TEFLON
SEALING COMPOUND
ON PIPE THREADS
3. Attach nylon pressure line to fitting on back of gauge using adapter, ferrule, and
compression nut as shown in diagram above. Route line through grommet to engine
compartment. Connect line to pressure port on engine by using 1⁄8" adapter (1⁄4"
if needed), ferrule and compression nut for pressure gauges or 1⁄8" connector and
T-fitting for vacuum gauges.
4. Make sure line is free from hazard of moving parts or hot engine components.
It is recommended that Auto Meter 3224 copper tubing kit be used where a potential
hazard exits.
5. Start engine and thoroughly check installation for leaks.
6. Twist in light socket assembly and connect one wire to dash lighting circuit or other
12V power source and the other wire to a good ground.
OVER-TIGHTENING OF
VENT SCREW WILL
DAMAGE THREADS.
CONDITION
30° F. Temp. Rise
2000 Ft. Altitude Increase
NOTE: DO NOT OVER TIGHTEN
+12 Volt
Lighting
Vent Screw
ADAPTER FITTING OR
GAUGE MAY BE DAMAGED.
Ground
Internal LED
Lighted Models