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Re: Battery overcharging. Ignition box causing voltage drop at regulator
[Re: lunacy]
#2315686
06/03/17 07:14 PM
06/03/17 07:14 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Nothing to do with your ignition box, not even sure why you went there.
The regulator is what controls the alternator output. Of course it needs good clean connections to work properly.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Battery overcharging. Ignition box causing voltage drop at regulator
[Re: lunacy]
#2315689
06/03/17 07:18 PM
06/03/17 07:18 PM
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Joined: Jan 2003
Posts: 25,899 Rio Linda, CA
John_Kunkel
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 25,899
Rio Linda, CA
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Unplug the voltage regulator connector when the engine is running, if the voltage stays at 15V there is a short to ground in the green field wire or internally in the alternator.
The INTERNET, the MISinformation superhighway
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Re: Battery overcharging. Ignition box causing voltage drop at regulator
[Re: lunacy]
#2315691
06/03/17 07:21 PM
06/03/17 07:21 PM
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Joined: Sep 2007
Posts: 14,889 up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Been my observation that the voltage goes way past 15v with a short in the ground circuit.
They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.
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Re: Battery overcharging. Ignition box causing voltage drop at regulator
[Re: ahy]
#2315726
06/03/17 09:35 PM
06/03/17 09:35 PM
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Joined: Nov 2003
Posts: 36,041 Lincoln Nebraska
RapidRobert
Circle Track
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Circle Track
Joined: Nov 2003
Posts: 36,041
Lincoln Nebraska
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I think the reg is bad but first unplug the field terminals at the reg & confirm that neither male alt terminal is grounded & you might note how many ohms there is on that circuit & there is a spec for that & you spin the pulley by hand which woouldn't involve anymore than removing the belt for a quick test tho likely if the brushes & that circuit ain't grounded then the alt is good but it would be a good first step (& costs nothing). Do NOT run the eng any longer than 5 seconds at a time just long enough to take a voltage reading with your VOM as you proceed with the diagnosing & keep all lights/accessories/radios etc off even for that 5 seconds.
live every 24 hour block of time like it's your last day on earth
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