67Dart273,
I appreciate that your method of checking for voltage drop is safer and more direct. However, Shawn has alread tested with the engine running. We know the VR IGN is not seeing Alternator output voltage, or Battery Voltage. See post 31,
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What I'm saying here is, resistance in that circuit is VERY UNLIKELY to cause such severe over charging. A 3? volt drop or more in the ignition feed to the VR would likely never start the engine. Therefore there must be something else wrong as I "guessed" above.
To put it still another way, he may have at least TWO problems........harness voltage drop AND something causing severe over voltage. 17V sounds more like something causing "full field" situation.
Checking with the engine OFF as I detailed will show that this is a harness problem, and if he "let's say" only shows 1 or 2 volts drop with that test, then that will NOT cause the 17V situation
OP: The VR should be normally NOMINAL 14V. So whatever drop you show with the engine off test will be added to that 14V. If you only show .5V drop, then the battery will charge at 14.5. If you show 2V drop, then the battery would charge at 16. But with 2 or more V drop, you are getting to the point where "when cranking" it is unlikely the engine will fire, as you'll only have ?? 7V or so to the ignition to start.
