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My Midget Alternator is reading 12.5 volts. INOP?

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G

Gunner

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I have my new 67 Midget running now. It has been converted to GM alternator, but only producing 12.5 volts at the positive battery lead and the alternator "Big Terminal". Were some of these 1967 Midgets negative ground? I've read several other posts about alternator conversions, etc. Should I replace this one? Doesn't see /ubbthreads/images/graemlins/driving.gifm to be putting out.
 
Gunner, pull the alternator and take it to one of your local parts stores and have it tested. Most places don't charge for this, and it will tell you right off the bat if it's OK or not. 1968 was the first year for negative ground.
Jeff
 
Re: My Midget Alternator is reading 12.5 volts. I

12.5 volts at any RPM over 2500 means the alternator is not charging. 12.7 volts (depending upon temperature) is a fully charged lead acid battery. A healthy charging voltage is 14.5

As Bugeye58 suggested, take it to the local auto parts store they will test; no charge. (Pun intended)
 
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