2-1/2 in. Tachometer
2
For technical questions call: 1-800-665-8685
4230082
V 2.8
SPECIFIC SAFETY PRECAUTIONS
1. Ensure the ignition is off and the engine is cool before installing gauge.
2. Disconnect negative (-) battery cable before installing gauges.
NOTE:
You may have to reprogram your radio, clock, etc. after reconnecting the battery cable.
3. Do not alter any parts of the gauge. If the gauge is not functioning properly, contact Princess
Auto for a solution.
4. Make sure the mounting location does not impair visibility or interfere with driving.
5. Check behind the mounting location for any wiring or components before drilling.
6. When connecting electrical wires, install crimp terminals and make wire splices as needed.
CAUTION! Always insulate wire splices with electrical tape to prevent shorting.
INSTALLATION
1. On the rear side of the tachometer (#1), locate the cylinder select switch
and slide it to 4-, 6- or 8-cylinder to match your vehicle (Fig. 1).
NOTE:
This tachometer is designed for use with 4-, 6- or
8-cylinder engines only.
2. Determine mounting location and install the mounting
bracket (#2).
a. For on-dash or under-dash mounting, drill a 3/16 in.
hole in the dash. Install base (#4) and mounting bracket
and secure to dash with screw (#7), washer (#8) and nut
(#9). (Fig. 2)
b. To mount on steering column, use large hose clamp
(sold separately) and rubber gasket (#5). (Fig. 3)
3. Route tachometer lead wires through mounting bracket and
tachometer nut (#3).
4. Make necessary connections to tachometer.
NOTE:
This tachometer works on vehicles equipped with
either distributor ignition systems or distributorless
ignition systems.
a. Determine routing for tachometer lead wires.
Use an existing firewall grommet, or drill a
3/8 in. hole through firewall to accommodate
lead wires. Install a rubber grommet
(sold separately) in hole, or wrap with
electrical tape, to protect lead wires from
chafing or other damage.
Fig. 1
Fig. 3
Fig. 2
