1
Electrical / Re: Clock Power
« Last post by b_hill_86 on Today at 11:56:43 AM »I would think so. If not a couple spare wires and alligator clips or something similar with one of your car batteries would work also.
The 77 vs 79 clock and tacho are both different units but believe they are wired up similarly. Tacho is separate, 2 wires, does its own thing. Clock is grounded through the case/rear of tacho mounting plate with an insulated live feed off the circuit board that runs from the main harness plus. There is a ground also through the main harness, doesn't require the strap to the gauge cluster body if the harness is plugged in.