Posted by Bret4207 on March 13, 2019 at 06:11:00 from (207.42.20.149):
In Reply to: Can a bad alternator posted by flying belgian on March 12, 2019 at 17:54:27:
I was told by some people that an alternator can't draw down a battery if it's hooked up correctly. I asked why there were diodes made to prevent the draw down if it can't happen and was told it was for people who couldn't hook the alt up correctly. On another site I got talking with some people who really knew these alternators and was told that a battery being drawn down by the alt was entirely possible, that it was the classic sign of a "leaky" regulator IIRC, and that the cure was the diode. As it was explained to me, it's not that the regulator was really "bad", it just carried a little voltage in the wrong direction. I dunno, it's all magic smoke to me, but these guys have that "PE" after their names.
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