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Posted by: oakdalecurtis Jul 27 2016, 11:42 AM

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?

Posted by: 87m491 Jul 27 2016, 11:58 AM

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM)

Posted by: oakdalecurtis Jul 27 2016, 12:06 PM

QUOTE(87m491 @ Jul 27 2016, 10:58 AM)

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM)

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?

Posted by: porschetub Jul 27 2016, 06:30 PM

QUOTE(oakdalecurtis @ Jul 28 2016, 06:06 AM)

QUOTE(87m491 @ Jul 27 2016, 10:58 AM)

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM)

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?

Thanks, just wasn't sure.

Posted by: oakdalecurtis Jul 27 2016, 06:47 PM

QUOTE(porschetub @ Jul 27 2016, 05:30 PM)

QUOTE(oakdalecurtis @ Jul 28 2016, 06:06 AM)

QUOTE(87m491 @ Jul 27 2016, 10:58 AM)

I think you answered your own question. New VR was over charging and old VR @ 12.4V isn't really charging. Should be between 13.5-14.

QUOTE(oakdalecurtis @ Jul 27 2016, 09:42 AM)

I installed a new alternator and a new Beru voltage regulator, started up my 76 2.0 and the charging system was sending 18 volts to the battery! Not good. I replaced the new Beru VR with an old Bosch VR, started up the car and now the battery is showing 12.4 volts at the posts, and the voltage doesn't vary a bit with engine speed. I think the 12.4 volts I'm reading at the battery is just the battery's own charge that I'm reading. How can I tell if this old Bosch VR, or any other future replacement VR, is actually charging the battery or not?

Thanks, just wasn't sure.

Did you buy this one from Pelican ? I have one also before I started hearing about issues with them

Posted by: ThePaintedMan Jul 28 2016, 08:14 AM

The one I got from AutoZone (had to order) worked fine. I think it was made by Wells. Only like ten bucks.

Posted by: oakdalecurtis Jul 28 2016, 08:57 PM

Found the problem, as some here suggested, it was the relay board. Take a look a this picture of the back, allowing female contacts to be pushed down when VR was installed. Repaired it and now it's charging 13.2 volts! Thanks to all here for great advice!
curtis