83 Delta 88 Alternator Wont Charge

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DRIVEN

Geezer
Apr 25, 2009
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Or you could take your alternator to just about any auto parts store and have it bench tested for free before rewiring the car. Just throwing that option out there.
 
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Jim hopper

Apprentice
Mar 29, 2017
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16FEF170-2075-4717-BB55-A606B8C11EE0.jpeg
D7D57AF4-3012-4F10-BD09-631D8B638BE6.jpeg
10146F00-F9B7-4286-A507-014E0DEFAA84.jpeg
I took a pic of my alternator for you im pointing at the wire I added
 
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Longroof79

Rocket Powered Basset Hound
Oct 14, 2008
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Have you checked the output of your alternator using a voltmeter? I think that would be the first thing on the agenda....then check to make sure the alternator body is well grounded...
I think that added + lead from the back of the alternator to the +battery post should help you.
Let us know what you find.
I won't mention belt tension....that's an obvious observation.
 
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axisg

Comic Book Super Hero
Jul 17, 2007
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YYZ
You can lead a horse to water........ 4 pages over 3 days to check if an alternator is charging. It takes under a minute to check 2 conditions. Is it exciting and if so is it sending 13.7+ to the battery

You took the neg lead off when running to check if charging ( bad idea, hard on the internal regulator )
You mention that the car is "hot wired", messing with this wiring may have something to do with your charging problem ( bad idea )
Your pic shows the 12v ground wire from the battery to the alternator bracket is off and dangling ( bad also )
Longroof has advised you "excite" the alternator by jumping 12v to the brown wire then check the output ( this takes less than 30 seconds and a 6" piece of wire)

You can see by the wiring ( 2 heavy red leads ) that Olds ties in the power from the alternator to the lug on the starter and back to the battery for charging ( chev runs a lead from the alt to the battery direct ). Longroof and others have suggested you bypass / add to this additional wire to your system and see if its now charging. ( another lest try this to see if it works 30 seconds fix ).

Try any of these excellent suggestions and report back. Or as mentioned above take it off and take it to just about any parts place to be tested for FREE.

I get you are on a budget but you have been given excellent information here and none of it is very expensive.
 
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Jim hopper

Apprentice
Mar 29, 2017
97
88
28
You can lead a horse to water........ 4 pages over 3 days to check if an alternator is charging. It takes under a minute to check 2 conditions. Is it exciting and if so is it sending 13.7+ to the battery

You took the neg lead off when running to check if charging ( bad idea, hard on the internal regulator )
You mention that the car is "hot wired", messing with this wiring may have something to do with your charging problem ( bad idea )
Your pic shows the 12v ground wire from the battery to the alternator bracket is off and dangling ( bad also )
Longroof has advised you "excite" the alternator by jumping 12v to the brown wire then check the output ( this takes less than 30 seconds and a 6" piece of wire)

You can see by the wiring ( 2 heavy red leads ) that Olds ties in the power from the alternator to the lug on the starter and back to the battery for charging ( chev runs a lead from the alt to the battery direct ). Longroof and others have suggested you bypass / add to this additional wire to your system and see if its now charging. ( another lest try this to see if it works 30 seconds fix ).

Try any of these excellent suggestions and report back. Or as mentioned above take it off and take it to just about any parts place to be tested for FREE.

I get you are on a budget but you have been given excellent information here and none of it is very expensive.
I'm not the get that is having a charg problem
 

Jim hopper

Apprentice
Mar 29, 2017
97
88
28
You can lead a horse to water........ 4 pages over 3 days to check if an alternator is charging. It takes under a minute to check 2 conditions. Is it exciting and if so is it sending 13.7+ to the battery

You took the neg lead off when running to check if charging ( bad idea, hard on the internal regulator )
You mention that the car is "hot wired", messing with this wiring may have something to do with your charging problem ( bad idea )
Your pic shows the 12v ground wire from the battery to the alternator bracket is off and dangling ( bad also )
Longroof has advised you "excite" the alternator by jumping 12v to the brown wire then check the output ( this takes less than 30 seconds and a 6" piece of wire)

You can see by the wiring ( 2 heavy red leads ) that Olds ties in the power from the alternator to the lug on the starter and back to the battery for charging ( chev runs a lead from the alt to the battery direct ). Longroof and others have suggested you bypass / add to this additional wire to your system and see if its now charging. ( another lest try this to see if it works 30 seconds fix ).

Try any of these excellent suggestions and report back. Or as mentioned above take it off and take it to just about any parts place to be tested for FREE.

I get you are on a budget but you have been given excellent information here and none of it is very expensive.
I'm not the get that is having a charg problem
 

Jim hopper

Apprentice
Mar 29, 2017
97
88
28
You can lead a horse to water........ 4 pages over 3 days to check if an alternator is charging. It takes under a minute to check 2 conditions. Is it exciting and if so is it sending 13.7+ to the battery

You took the neg lead off when running to check if charging ( bad idea, hard on the internal regulator )
You mention that the car is "hot wired", messing with this wiring may have something to do with your charging problem ( bad idea )
Your pic shows the 12v ground wire from the battery to the alternator bracket is off and dangling ( bad also )
Longroof has advised you "excite" the alternator by jumping 12v to the brown wire then check the output ( this takes less than 30 seconds and a 6" piece of wire)

You can see by the wiring ( 2 heavy red leads ) that Olds ties in the power from the alternator to the lug on the starter and back to the battery for charging ( chev runs a lead from the alt to the battery direct ). Longroof and others have suggested you bypass / add to this additional wire to your system and see if its now charging. ( another lest try this to see if it works 30 seconds fix ).

Try any of these excellent suggestions and report back. Or as mentioned above take it off and take it to just about any parts place to be tested for FREE.

I get you are on a budget but you have been given excellent information here and none of it is very expensive.
Sorry for the first to post I just posted but I put pics up for Chris he was having problems not me the pics I posted work on my Monte Carlo
 
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Jim hopper

Apprentice
Mar 29, 2017
97
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28
You may wont to look at my pic closer it's not wired the way u said it is it just how I have the wiers routed for my Application it's a street strip car
 
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