Re: M --alternator-- rpm

Posted by David in UT on July 21, 2004 at 09:11:55 from (208.15.63.194):

In Reply to: M --alternator-- rpm posted by Eric on July 20, 2004 at 15:58:50:

Eric,

I have a Delco 12SI conversion on my C, and I occasionally have trouble getting it to energize. I definitely have to rev it to max rpms to get it charging. Even then, it will sometimes not go for me. I'm still not sure what the exact factors are that affect it -- maybe I've just got a finicky one. I tried chasing down a smaller hub, but no luck there. Sometimes restarting the tractor does the trick.

Mine is a 3-wire conversion, so I've got alternator light that makes it really easy to tell when it's not been energized. I agree with the other posters, though -- even without that light, watching your ammeter should be enough. When my alternator is not energized, there's a slight negative value on the ammeter...when it does energize, I get pretty big jump to the positive side that comes down over the next minute or so. (faster if the battery is already charged up)

Good luck,

- David

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