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J Wray
Samba Member
Joined: October 02, 2022
Posts: 7
Location: AL
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 Posted: Sun Oct 02, 2022 4:45 pm Post subject: 73 convertible - voltage keeps increasing with RPM |
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| Just bought a 73 convertible The voltage keeps increasing with RPM to 16.5 volts. The generator tested good. I have a new voltage regulator. I installed a new voltage regulator Saturday; everything checked out good. Went on a short drive today and noticed the GEN light was coming on at low RMPs. So I got out the voltmeter and found the high voltage problem. Any suggestions on what the problem may be? |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51145
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Sun Oct 02, 2022 4:57 pm Post subject: Re: 73 convertible - voltage keeps increasing with RPM |
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Welcome!
I'd start with a continuity test on all the wires between the generator and regulator, often a weak ground causes something similar to your issues, if the reg can't sense voltage how does it know when to stop charging?
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J Wray
Samba Member
Joined: October 02, 2022
Posts: 7
Location: AL
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| Posted: Tue Oct 04, 2022 5:10 pm Post subject: Re: 73 convertible - voltage keeps increasing with RPM |
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| The voltage regulator has a good ground, Looks like the gen is grounded by the gen strap. Should the be a ground wire between the voltage regulator smd gen? |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51145
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Tue Oct 04, 2022 5:23 pm Post subject: Re: 73 convertible - voltage keeps increasing with RPM |
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There should be a brown wire in the regulator harness, check it for good continuity to ground.
_________________
Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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