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Alternator not Alternating
#9

Looking at your picture both studs/posts are isolated from case ground by the white insulator . This indicates to me that these are positive . The one on left in the picture has the short red cable going to ground . I think this is wrong . 
You might ask the alternator shop how they wired it on the bench , as per Richard .
It is possible you have a drive issue , but I would think it would have been evident when you removed alternator. It drives off the blower shaft .
When I was going through Leece Neville I found information on the Prestolite site , spoke with a knowledgeable tech . 
I am looking for pictures of my original alternator,  it was likely the same as yours. 
Chris

BTW , that is your external regulator with 14v and a part number on it .

1986 #89
VIN 007
Detroit 8V92 TA 475 HP
Allison four speed 
Chris and Sharon Hand
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Messages In This Thread
Alternator not Alternating - by [email protected] - 01-12-2023, 08:10 AM
RE: Alternator not Alternating - by Tf175 - 01-12-2023, 08:32 AM
RE: Alternator not Alternating - by [email protected] - 01-12-2023, 08:36 AM
RE: Alternator not Alternating - by Tf175 - 01-12-2023, 09:30 AM
RE: Alternator not Alternating - by Tf175 - 01-12-2023, 09:43 AM
RE: Alternator not Alternating - by Tf175 - 01-12-2023, 09:59 AM
RE: Alternator not Alternating - by Richard - 01-13-2023, 05:44 AM
RE: Alternator not Alternating - by [email protected] - 01-13-2023, 07:20 AM
RE: Alternator not Alternating - by Tf175 - 01-13-2023, 07:43 AM
RE: Alternator not Alternating - by Tf175 - 01-13-2023, 07:49 AM
RE: Alternator not Alternating - by [email protected] - 01-13-2023, 07:53 AM
RE: Alternator not Alternating - by Tf175 - 01-13-2023, 09:03 AM
RE: Alternator not Alternating - by [email protected] - 01-13-2023, 10:44 AM
RE: Alternator not Alternating - by Tf175 - 01-13-2023, 11:18 AM
RE: Alternator not Alternating - by [email protected] - 01-17-2023, 08:22 AM
RE: Alternator not Alternating - by [email protected] - 01-22-2023, 09:45 AM
RE: Alternator not Alternating - by Richard - 01-24-2023, 05:10 PM
RE: Alternator not Alternating - by [email protected] - 01-29-2023, 07:49 AM

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