Posted by Paul from MI on January 17, 2012 at 12:31:16 from (204.106.250.243):
I'm working on my recently acquired '42 Farmall H that my grandfather bought new. Been in the family ever since. Having charging system troubles. It has been converted from a cut-out on the generator to a voltage regulator mounted under the gas tank, but still 6V, positive ground. Wasn't charging when I got it. I took the generator & regulator to our local shop. Generator was good, regulator not. Bought new regulator and it did charge, but only 2-3 amps(on a new ammeter) and the ammeter fluttered a lot & constantly, especially at higher RPM's. I tried another regulator, with no success, same problem. I then took both regulators and generator back to the shop. One regulator was good, the other not and generator checked good. N ow I'm beginning to suspect a back connection somewhere in the old original wiring harness which had been modified when the tractor was converted to a regulator system. So I replaced it all with new wiring. There are no lights hooked up, only the distributor. It is still not charging. I remembered some of the tests you have posted in the past, so I grounded the field terminal. With the field terminal grounded I get about 7-8 amps and no more fluttering of the ammeter. What is going on here, did I get two bad regulators or what? Any ideas? This is beginning to make me appreciate my hand start John Deeres with only a magneto to worry about. Thanks, Paul
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