1977 trace harness

1977 Corvette Tracer Schematic

1977 Corvette Tracer Schematic-  The same schematics we use in our shop.  Copy this file and save it to your desktop.  Then open it in “Paint” and you can color trace a circuit.

Willcox Corvette Adjustable Temperature Resistor Installation Video 1968-1976

Willcox Corvette Adjustable Temperature Resistor Installation 1968-1976

Notes: If pre-testing before you install, you must have ohms input for the gauge to work.  If you don’t have any input the gauge will to go full cool, if you ground the ohms input wire the gauge will peg hot.   You can verify the resistor is working by testing ohms resistance between the two stud holes that mount the board to the back of the gauge.  The range is 1 to 150 ohms and the resistor is pre-set at 90 ohms.

Temperature Gauge Adjustable Resistor 68-76