Re: Bob M or John T, W6 electrical problems

Posted by chadd on March 19, 2007 at 14:32:22 from (155.92.33.25):

In Reply to: Re: Bob M or John T, W6 electrical problems posted by Clip41A on March 19, 2007 at 13:26:24:

Your post just gave me a theory that may just explain some of what is going on. Maybe when I try out some of the testing it will be proven. The generator originally died when a wire broke off of the regulator and hit the frame. Well, we took it to a shop, they rebuilt it and ran it on their test machine. He did all of the testing in a negative ground situation. We got it back and put it on, it did absolutely nothing in any direction. So we took it back and he replaced the armature and went through it again. This time when we got it back, it would peg the needle to -30. We took it back a 3rd time and he replaced the magnets and checked the armature again. This time I went into the back room and he ran it on the tester for me. He ran it and it provided 8 volts running at negative ground. Then he flipped the connections and ran it positive ground. It showed zero volts. He talked to another generator rebuilder that was a friend of his and he said that he had never heard of it occurring on a Delco before, but that it was common on Motorcrafts for them not to charge on the machine to but to work on the vehicle. I'll bet you that it was charging on his machine, just that it was charging reverse polarity, and the needle couldn't go lower than zero (which I know it couldn't, as there was a peg there), so it couldn't show the reverse polarity. If it would have had an amperage gauge, maybe he would have seen the same thing I saw on the tractor. It's just a theory, but it seems to work out (at least in my mind. . . ). Thanks again, and I will be sure to let you guys know how it works out.

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