Can this LT1 alternator be fixed or just replace? - Camaro Zone - Camaro Forums and News

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Old 10-16-2013, 05:11 PM   #1
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Can this LT1 alternator be fixed or just replace?

Noticed my voltage gauge down in the red and when I checked alternator out only thing I could find wrong is the stud the charge wire bolts to moves in and out. I know it shouldn't of course but what exactly does it thread into and can it be fixed?
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Old 10-16-2013, 05:22 PM   #2
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Noticed my voltage gauge down in the red and when I checked alternator out only thing I could find wrong is the stud the charge wire bolts to moves in and out. I know it shouldn't of course but what exactly does it thread into and can it be fixed?
It connects to the 3 phase bridge rectifier that converts the alternator current from A/C to DC.

If the voltmeter is in the red I would suspect that the alternator is failing / has failed.

You can try tightening the stud, but be prepared to replace the alternator.
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Old 10-16-2013, 05:29 PM   #3
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Thanks, hoping a easy fix verses 140.00
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Old 10-16-2013, 05:37 PM   #4
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Thanks, hoping a easy fix verses 140.00
IIRC that stud is welded to the rectifier plate, if it's loose there might not be a way to tighten it.
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Original owner, 193k miles and counting.
Total engine rebuild at 187,020 miles. AIR delete, bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs.
Custom leather interior at 190k miles.
In the paint shop now.
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Old 10-16-2013, 06:21 PM   #5
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IIRC that stud is welded to the rectifier plate, if it's loose there might not be a way to tighten it.
The bolt that holds stud to rectifier or whatever was on it's last couple of threads tightened it and trying to get alternator back together now.

thanks, will let you know if it fixed the problem.
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Old 10-16-2013, 06:23 PM   #6
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Found a youtube video and what you describe as "welded on" sounds like what the guy was talking about when he showed differences between a early CS144 and a late CS144
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Old 10-16-2013, 06:41 PM   #7
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Originally Posted by jeffp1167 View Post
The bolt that holds stud to rectifier or whatever was on it's last couple of threads tightened it and trying to get alternator back together now.

thanks, will let you know if it fixed the problem.
You need a paper clip or strong toothpick to hold the brushes up while you put the two halves together.
Don't forget to remove it afterwards.
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96 T/A, Black/Graphite Leather, T-Tops, 6 speed, 10 speaker Delco/Bose "Monsoon"
Original owner, 193k miles and counting.
Total engine rebuild at 187,020 miles. AIR delete, bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs.
Custom leather interior at 190k miles.
In the paint shop now.
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Old 10-16-2013, 06:46 PM   #8
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Got that done, brushes look good. I'm hoping this fixes it, it just all of a sudden stopped working and motor hasn't run good since. I also got a pcm code for low voltage when it stopped.

The stud could be moved in and out about 7/16"
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Old 10-16-2013, 07:07 PM   #9
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Got that done, brushes look good. I'm hoping this fixes it, it just all of a sudden stopped working and motor hasn't run good since. I also got a pcm code for low voltage when it stopped.

The stud could be moved in and out about 7/16"
Interesting, don't ever remember one of those coming loose.
Curious as to how it ends up.
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96 T/A, Black/Graphite Leather, T-Tops, 6 speed, 10 speaker Delco/Bose "Monsoon"
Original owner, 193k miles and counting.
Total engine rebuild at 187,020 miles. AIR delete, bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs.
Custom leather interior at 190k miles.
In the paint shop now.
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Old 10-16-2013, 07:41 PM   #10
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It worked, used to run at battery voltage down in the red almost. Battery was pretty dead when I first started it.

click pic for video

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Old 10-16-2013, 07:49 PM   #11
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Awesome.
Feels great when you can resurrect something and save money doesn't it.
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96 T/A, Black/Graphite Leather, T-Tops, 6 speed, 10 speaker Delco/Bose "Monsoon"
Original owner, 193k miles and counting.
Total engine rebuild at 187,020 miles. AIR delete, bored .030 over.
Comp cams Xtreme Energy LT1 266HR-14 street cam and springs.
Custom leather interior at 190k miles.
In the paint shop now.
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Old 10-16-2013, 08:05 PM   #12
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Awesome.
Feels great when you can resurrect something and save money doesn't it.
Yep, trying to keep this whole conversion under 1300.00
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