C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

alternator rebuild?

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Old Oct 18, 2002 | 11:25 AM
  #1  
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Default alternator rebuild?

anyone know where to go to get an alternator rebuilt in the Detroit area? I picked up a rebuild and it don't work :mad i still have my original, and would prefer to just get it rebuilt.
:cheers:
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Old Oct 18, 2002 | 12:00 PM
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Default Re: alternator rebuild? (konroh)

It should be under warranty! Maybe exchange it for a new one "not rebuilt". It's worth the extra couple of dollars. :smash:
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Old Oct 18, 2002 | 12:20 PM
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Default Re: alternator rebuild? (VBP)

It should be under warranty! Maybe exchange it for a new one "not rebuilt". It's worth the extra couple of dollars. :smash:
i just bought the rebuild last week, so i can still return it for full refund...it never worked and i never returned the core yet, i have heard that having a good shop do a rebuild will be more reliable than a mass market rebuild.
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Old Oct 18, 2002 | 12:20 PM
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Default Re: alternator rebuild? (konroh)

oh yeah, the current one is the factory stock one, this is the first time it failed.
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Old Oct 18, 2002 | 12:45 PM
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Default Re: alternator rebuild? (konroh)

There's a pretty good TECH TIP on rebuilding your own alternator.

www.corvetteforum.com/techtips/viewsubtopic.php?SubTopicID=106&TopicID= 2
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Old Oct 18, 2002 | 01:54 PM
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Default Re: alternator rebuild? (John Row)

There's a pretty good TECH TIP on rebuilding your own alternator.

www.corvetteforum.com/techtips/viewsubtopic.php?SubTopicID=106&TopicID= 2
hmmm...i may be doing that this weekend....i like the idea of fixing it myself...
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Old Oct 18, 2002 | 04:31 PM
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Default Re: alternator rebuild? (konroh)

is there any difference with a '94 alternator vs what he has in that tech tip? also, where should i go to buy alternator parts, i looked up a volt regulator at autozone and they want ~$130 :crazy:

:cheers:
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Old Oct 18, 2002 | 05:27 PM
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Default Re: alternator rebuild? (konroh)

Sorry, no help from me. Maybe you can e-mail Lars at lars.grimsrud@lmco.com
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Old Oct 19, 2002 | 12:44 AM
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Default Re: alternator rebuild? (John Row)

I'm a broken record on this subject. I generally prefer a local rebuild. Try the yellow pages, automotive/automobile-electrical. There should be a bunch of 'em. Or, automotive-alternators/starters. Some do both.

Should you find one close by, consider visiting the shop, look around, ask if they will rebuild and return what you bring in. Look for some good test equipment and a place that has been in business for some time.

If most are quite far away, call and ask if they will rebuild your unit. Ask too if they will bench check before rebuilding. It would be impolite to ask if they have gray hair and have been in the business for 20 years. That's why I like to visit. Some of them folks really know their stuff.

Hope you find a place that meets your needs.

dlmeyers 90 coupe zf6 3 speed shocks

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Old Oct 21, 2002 | 10:42 AM
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Default Re: alternator rebuild? (dlmeyers)

ok guys, here's the latest on this...i took back the rebuild, and it tested good at the place i bought it, i returned it, and also brought in my battery and alternator (the old ones) to get tested, they also both tested good. When i put them back in the car, i start having the battery light flicker right away, then it might work for a while, but every time i hit a bump it stops charging for a few seconds...and eventually it just stops charging all together, unless i am making a left turn :confused: then it charges all the way through the turn and stops when i straighten up.

I checked all the connections to the battery, and the connections directly on the alternator. Does it sound like some other connection is loose...or could a bad alternator act this way? what other connections should i check? please help!!!

thanks
:cheers:
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Old Oct 21, 2002 | 03:21 PM
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Default Re: alternator rebuild? (konroh)

What about the connections on the starter? The wires that come off the solenoid go to the fuse-box and I believe the alternator. :yesnod:
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Old Oct 21, 2002 | 05:04 PM
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Default Re: alternator rebuild? (VBP)

What about the connections on the starter? The wires that come off the solenoid go to the fuse-box and I believe the alternator. :yesnod:
I'll have to check that out...anyone know any other places to look...is the voltage regulator in the alt. the only one?
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Old Oct 21, 2002 | 05:05 PM
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Default Re: alternator rebuild? (VBP)

What about the connections on the starter? The wires that come off the solenoid go to the fuse-box and I believe the alternator. :yesnod:
I'll have to check that out...anyone know any other places to look...is the voltage regulator in the alt. the only one?

The volts vary up and down from about 12.0 to 14.5...and the battery light flickers on and off.
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Old Oct 21, 2002 | 05:13 PM
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Default Re: alternator rebuild? (konroh)

The voltage regulator is inside the alternator so there is only the connections on the alternator. I'd bet the starter solenoid wires are the culprit. I've seen them get burned on the exhaust and cause the same thing. :smash:
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Old Oct 21, 2002 | 05:17 PM
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Default Re: alternator rebuild? (VBP)

The voltage regulator is inside the alternator so there is only the connections on the alternator. I'd bet the starter solenoid wires are the culprit. I've seen them get burned on the exhaust and cause the same thing. :smash:
that would be :cool: if that was the problem...i'll check it out tonight and post the results.
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Old Oct 21, 2002 | 11:10 PM
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Default Re: alternator rebuild? (konroh)

ok, i have the car on jackstands right now and i am looking underneath...what should i be looking for on the starter solenoid?

nothing looks burned or anything, i will probably redo the connections to the solenoid tomorrow...


[Modified by konroh, 4:12 AM 10/22/2002]
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Old Oct 22, 2002 | 10:38 AM
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Default Re: alternator rebuild? (konroh)

Reach your hand up to the large feed wire and see if any of the wires are loose. :chevy
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Old Oct 22, 2002 | 09:52 PM
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Default Re: alternator rebuild? (VBP)

Reach your hand up to the large feed wire and see if any of the wires are loose. :chevy
as far as i can tell those wires are ok...now here is the strange thing...i was checking out connections and such and took the car for a test drive...i found that if I apply pressure to the bottom of the steering wheel (push it towards the front of the car) then the battery light comes on, and the volts drop to 12.5 or less, so i am on battery only then...when i press on the top of the wheel the light goes away and the volts go back up to high 13's to low 14's :confused:

is there something in the steering column that could be loose and shut down charging? the other times it stops charging are on hard braking and right hand turns, so i am pretty sure my alternator is fine and something else is just loose...any more ideas...i am getting frustrated :smash:
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Old Oct 23, 2002 | 12:31 PM
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Default Re: alternator rebuild? (konroh)

I would check all the connections on the steering column. Do you have tilt steering? You need to check the operation of the ignition switch mechanism. Sounds like the rod that goes down to the switch may need to be adjusted. :smash:
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