Re: Generator cut out issues
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Forum Ambassador
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Since the lights got a bit brighter when you increased engine speed, it may not be the generator at all. Sounds to me like the thermal circuit breaker on the lighting circuit. The thermal breaker will cycle but allow the headlights to function (after a fashion). I suspect you've got a short circuit.
Turn everything off on the car, and remove and then retouch one of the battery cables to the battery post. If you hear a spark or see it, and nothing is intentionally "on", you've got a short circuit. PS - if you've got an owner's manual I suspect the interplay between the body fuse, the thermal breaker and the headlights is explained in there, it is in most of the other Packard manuals of the era that I've browsed.
Posted on: 2011/5/29 16:26
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Re: Generator cut out issues
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Home away from home
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Paul_K,
Check your ammeter, do you show a charge, and what is the rate? I had a similar condition a few years back, turned out to be a battery that was old and wouldn't hold a full charge. It was enough to start the car, but after running at night with headlights it would slowly loose charge, even with the generator putting out 15 amperes. If you have or can borrow a battery hydrometer you can easily check the condition of the battery. Most auto stores have a inexpensive one. Regards. Dave
Posted on: 2011/5/30 22:05
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