Quote:
Originally Posted by L78_Nova
I thought if there was no load present the voltage should be equal on both sides of the ballast resistor ? ie. The resistor only drops the voltage if there is draw across it.
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You have to be actively cranking the motor to check the cranking voltage and then again when its running. It should be something like 12 volts cranking and then 9 when running. You are correct: if you test a ballast resistor of the car it will be the same reading at both terminals if there is no (engine running) load on it.
Here's the original chapter from my 72 Trans Am saga with the wiring harness glitch. Has all the voltage testing info:
https://www.yenko.net/forum/showthre...ts#post1095635
BTW, what do the contact surfaces of the points look like? Mine were a really pretty, iridescent purple color from the high-voltage effect, down the arm from the burnt point, contact area.
03-23-2020, 08:21 PM
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