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Old 07-02-2019, 07:37 AM   #1
72GMC51
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Battery boil over

Installed a new battery in my 72 couple of months ago just noticed that the battery seemed to be leaking or boiling over.
Tested the alternator and it appears to be within specs, battery volts 13.70 - 15.08 volts.
Any ideas?
Thanks
John C
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Old 07-02-2019, 01:50 PM   #2
rpmerf
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Re: Battery boil over

15.08 sounds a bit on the high side.

What alternator do you have installed? Internally regulated? Where is the reference connected?
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Old 07-03-2019, 08:56 PM   #3
72GMC51
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Re: Battery boil over

Took it to a rebuild shop they put it on their tester and it was all over the board 10 - 18 volts internal regulator was bad.
Thanks for the reply.
Quote:
Originally Posted by rpmerf View Post
15.08 sounds a bit on the high side.

What alternator do you have installed? Internally regulated? Where is the reference connected?
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