| Re: [GMCnet] Generator Light [message #336486 is a reply to message #336472] |
Wed, 29 August 2018 09:58   |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma:
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Senior Member |
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Read here
http://www.gmcmhphotos.com/photos/data/15/GMC_charging_system_checkout.pdf
On Wed, Aug 29, 2018 at 7:57 AM Emery Stora via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Are you using the Gene Fisher UPC cable attached to the alternator?
>
> Emery Stora
>
>> On Aug 29, 2018, at 5:55 AM, Ken Burton wrote:
>>
>> Bruce Hart wrote on Wed, 29 August 2018 06:15
>>> Emory, it happened with both alternators.
>>> Will check the fuse next,
>>> Ken, checked voltage at center post of isolator. Will follow up with
>>> connector.
>>>
>>> Bruce Hart
>>> 1976 Palm Beach
>>> Milliken, Co
>>> GMC=Got More Class
>>> _______________________________________________
>>> GMCnet mailing list
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>>
>> OK, so you are about 1 volt over expected. That point should be around
> 14.7 volts give or take a few 1/10s of a volt. The other two terminals on
>> the isolator should be around 14.0 volts again give or take a few
> 1/10s.
>>
>> This is from memory and could be wrong. Thee is a sense lead that is
> connected to the big terminal on the horn relay. On that same terminal is
> the
>> fusible link connected to the isolator. The wire you want is a #12 red
> one that goes to the alternator pin #2. Along it's route it changes colors
>> from red to white. I would be reading the voltage at the horn relay and
> also at the #2 terminal at the alternator. They should be the same reading
>> and around 14.0 volts with the engine running.
>>
>>
>> --
>> Ken Burton - N9KB
>> 76 Palm Beach
>> Hebron, Indiana
>>
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--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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