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06-22-2014, 04:50 PM | #1 |
Senior Member
Join Date: May 2010
Location: Cold Spring Harbor, NY
Posts: 102
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Generator Diagnosis Needed
I have a '35 Cabriolet converted to 12 Volt with a voltage regulator. Have not been getting a positive ammeter reading while running. Started up today and after a short ride and short rest tried to start again and battery was dead.
I think the generator is not producing any output and so running lights have worn down battery over time . Does anyone know a test I can do to determine whether the generator is outputting or not? Thanks in advance for your help. I am out to sea when it comes to electrics!!! Smurph |
06-22-2014, 04:58 PM | #2 |
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Join Date: Oct 2012
Location: oroville calif.
Posts: 1,453
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Re: Generator Diagnosis Needed
I get yelled at every time I say this but, start car remove positive cable, if engine keeps running generator is working, regulator is bad, if engine dies generator is bad, it only takes a second to find out, and you only need to do it once
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06-22-2014, 06:32 PM | #3 |
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Join Date: May 2010
Location: Oakdale,Ca
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Re: Generator Diagnosis Needed
Only issue with disconnecting the battery cable, it doesn't tell you if it the generator or the regulator (no yelling..lol)
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06-22-2014, 07:10 PM | #4 |
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Join Date: May 2010
Location: Ft Mohave,Az
Posts: 1,987
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Re: Generator Diagnosis Needed
Reread ford3s 'post again. I think he covers that.
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06-22-2014, 07:14 PM | #5 |
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Join Date: May 2010
Location: Mid coast Maine
Posts: 1,878
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Re: Generator Diagnosis Needed
I use a voltmeter.
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06-22-2014, 08:10 PM | #6 |
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Join Date: Feb 2013
Location: Pittsford NY. USA
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Re: Generator Diagnosis Needed
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06-22-2014, 08:40 PM | #7 |
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Join Date: Oct 2012
Location: oroville calif.
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Re: Generator Diagnosis Needed
that can happen, but all he wanted to know is if the gen was bad, if it is the engine will die , if its good the engine will run even if the reg is bad
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06-22-2014, 09:20 PM | #8 |
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Join Date: May 2010
Location: Oakdale,Ca
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Re: Generator Diagnosis Needed
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06-22-2014, 11:02 PM | #9 |
Senior Member
Join Date: May 2010
Location: New Jersey
Posts: 530
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Re: Generator Diagnosis Needed
Did you polarize the regulator?won't charge correctly or at all without it.
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06-22-2014, 11:09 PM | #10 |
Senior Member
Join Date: May 2010
Location: Ft Mohave,Az
Posts: 1,987
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Re: Generator Diagnosis Needed
Mike B better slow than not at all . Keep on keepin on.
Better to be slo than halfast. heh heh he |
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