Results:
With the distributor cap off, turn the engine over until the points are closed. With the key still on .....
... measure coil + to ground. Should be around 8.5 to 9.5 volts.
Mine was 5.19 volts
... measure coil - to ground. Should be zero volts.
Mine was 0.11 volts
Then turn the engine over until the points are open. With the key still on ....
... measure coil + to ground. Should be battery voltage.
Mine was 12.38 volts
... measure coil - to ground. Should be battery voltage.
Mine was 12.38 volts
Maybe I need to pick up a new ballast resistor at NAPA tomorrow.
Last edited by UtahYork; 04/21/2026 2:17 AM.
