1. Sun Tach 2 tachometer with included hardware.
2. Flathead screwdriver or trim removal tool.
3. Phillips head screwdriver.
4. Wire stripper.
5. Electrical tape.
6. 12V ignition-switched power source.
7. Grounding point.
Here's a step-by-step guide on how to install the tachometer:
1. Locate the Instrument Cluster:
- Open the hood of your car and locate the instrument cluster.
2. Remove the Cluster Bezel:
- Use the flathead screwdriver or trim removal tool to carefully pry and remove the bezel around the instrument cluster.
- Set aside the bezel for reassembly later.
3. Connect Wiring:
- Identify the following wires on the back of the instrument cluster:
- 12V Ignition: Usually a red wire connected to the ignition switch.
- Ground: Usually a black wire connected to the vehicle's chassis.
- Tach Signal: Might be labelled "Tach" on the cluster.
- Connect the wires from the Sun Tach 2 to the respective wires on the cluster:
- Connect the red wire (power) from the tach to the 12V ignition wire.
- Connect the black wire (ground) from the tach to the ground wire.
- Connect the tach signal wire to the tach signal wire on the cluster.
- Depending on your specific make and model, you may need to splice into and connect the tach signal wire. In that case, strip the ends of the tach signal wires, twist them together, and secure the connection with electrical tape.
4. Mount the Tachometer:
- Choose a suitable location for mounting the tachometer on or around the instrument cluster.
- Use the provided mounting bracket and the Phillips head screwdriver to secure the tachometer in place.
5. Reassemble the Cluster:
- Reattach the instrument cluster bezel you removed earlier.
- Ensure all connections are secure and the bezel is properly snapped back into place.
Once you've completed these steps, your Sun Tach 2 should be installed and ready to show the engine's RPM. Double-check all connections to make sure the tachometer is functioning correctly.
Note: While these instructions provide a general guide, your specific Chevy 350 may have variations or require different steps. It's always a good idea to consult the vehicle's service manual or seek assistance from a professional if you're unsure about any aspect of the installation.
