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Delco 10SI Alternator Problem
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Posted by Robert Lorencz on February 15, 2006 at 14:37:14 from (64.12.116.65):
Good Day
I converted my C over to 12 volts and used a rebuilt Delco 10SI that I had bought last year. Wired it according to Bob M diagrams other than I used a diode instead of a light. On start up everything looked good, 14+ volts out of alternator, positive swing on ammeter. Took the old girl for a run down the road, looked at ammeter and it was pegged over. Idled back and it came back some. Got home and put voltmeter on alternator and it was puting out over 16 volts at fast idle. Also realized that the fuse was blown for the lights (I had them on). Started to doubt my wiring skills, did some more checking, everything pointed to alternator. Went to a different auto parts store and got a rebuilt Delco 10SI, bolted it on and hey - it works as advertised! So... the question is - did the internal regulator pack in? And is it replacable, or do I have to exchange the entire alternator?
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