| Re: [GMCnet] Alternator charges until warm then stops charging [message #352536] |
Mon, 02 March 2020 18:21 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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I understand the logic behind wanting to simplify the electrical system on
the GMC. Just be absolutely sure that what you are doing will actually
improve and simplify your coach. An isolator is a very, very reliable
device. And in the rare event of it failing, it is easy to troubleshoot,
and to replace. Most electrical issues in GMC's can be attributed to the
fact that they are all 40 plus years old, and every electrical connection
in the coach has at least some issue with corrosion, or loose
connections, just basic stuff that occurs from age and inactivity and
inattention.
Replacement engine alternators from rebuilders that use inexpensive
off-shore produced reproduction parts are a huge fail point. Seen it, dealt
with it, hate it.
Jim Hupy
Salem, Oregon
On Mon, Mar 2, 2020, 4:01 PM Eric Mears via Gmclist
wrote:
> Good write up on the differences between a one wire and a three wire
> alternator here:
>
> http://www.madelectrical.com/electricaltech/onewire-threewire.shtml
>
> Eric
>
> On Mon, Mar 2, 2020 at 2:01 PM Skip Hartline via Gmclist gmclist@list.gmcnet.org> wrote:
>
>> My experience has been the positive jumper from the diode bridge to the
>> output terminal get loose in the poorly designed stud and insulator that
>> goes
>> through the housing, when it get hot it get loose, and the looser it
> gets,
>> it gets hotter, the loose then hotter just an endless cycle, Mine
> actually
>> eventually burnt into inside.
>> Had to get a jumper from a scrap alternator and came up with an insulator
>> setup that could be tightened up, the best bet I think is the one wire
>> alternator now available, when the time comes I'll go to that.
>>
>> Skip Hartline
>>
>> --
>> 74 Canyon Lands, FiTech,
>> 3.7 FD, Manny Tranny,
>> Springfield Distributor,
>> 2001 Chevy Tracker Ragtop Towd
>>
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