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Topic: Alternator rebuild

in Forum: C3 Electrical

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Alternator rebuild (1/11)
12/28/09 2:38am

tb2k82ce

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Lemon Grove, CA - USA

Vette(s):
1982 C3 Collectors Edition 44000 miles, sat in the sun most of its life, My wife purchased it for me for Father's Day in 2007 from her girlfriend that had it for 19 years. It is on the road again. I'm retired but it is now my daily driver.

Joined: 10/17/2007
Posts: 2041

Is there a way to tell for sure that you have the original type alternator? I have an 82CE with 44K miles the battery light is dimly lit. You can not see it in the daylight but at night you can clearly see that it is on.

I have had the out put of the alternator checked and it is 13 to 14 volts. I was told that if the regulator was bad it could be the reason. The alternator has some marks on it like it was a rebuild but that would not mean it was not original. The reason is I would like to buy a rebuild kit and repair it. The rebuild kit is a lot less than a rebuild alternator.

Anyone ever used the repair kit from ZIP and what was the results?

Any help out C3 land?

Tb2k82CE2009-12-27 23:38:41

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Alternator rebuild (2/11)
12/28/09 12:37pm

VetteSpecialties
Former Member
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Mounds View, MN - USA

Vette(s):
70 LT1 coupe, 69 350 HP coupe, 69 390HP 427 coupe, 71 LS5 convert, 85 coupe, 93 coupe

Joined: 5/24/2007
Posts: 1031

I have never used the Zip kit, but have done many using NAPA kits, always with good results. Make sure you get the one with the diodes, bearings, brushes, etc. It doesn't take any special tools. It is easier to get the big nut off the pulley with an impact, but it can be done without. Use a straightened paper clip to hold the brushes back to slip the shaft back in.

Have fun
Larry

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Alternator rebuild (3/11)
12/29/09 12:41am

tuxblacray

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Greensburg, IN - USA

Vette(s):
Previous: 1984 Silver / Charcoal Coupe, 1988 Maroon Coupe / 1989 Artic White Coupe / 2001 Speedway White Roadster / Present:1976 Stingray Black / Black, Auto, 350 slightly modified (355 hp) Luxor Wires Redline Tires. / 1989 Roadster Bright Red...

Joined: 9/24/2003
Posts: 5188

Maybe this Casting Code Chart will help unlock the mystery to your question.

Tux...

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Tuxblacray: She's Back In Black! Check out my pics @ My Link

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Alternator rebuild (4/11)
12/29/09 4:01am

tb2k82ce

Wow Numbers. My car is in the shop now so I will have to wait until I get it back to look for the casting number. Would they be visible without taking the alternator off? Smile

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Alternator rebuild (5/11)
12/29/09 9:18am

manchestershark

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Equinunk, PA - USA

Vette(s):
1972 conv, 4-speed, 350, 200hp, numbers match, rally wheels, war bonnett yellow w/white top. good condition, nice driver.

Joined: 10/31/2007
Posts: 2387

Hey TUX, I have what I believe to be Original altenator for my 72'. They told me it was WAAAY less expensive to buy a re-built, so I did. Do you have a list for the 72 codes? I may want to do mine myself and put the Numbered one back on. TANKS

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Alternator rebuild (6/11)
12/29/09 11:45am

tuxblacray

[QUOTE=manchestershark] Hey TUX, I have what I believe to be Original altenator for my 72'. They told me it was WAAAY less expensive to buy a re-built, so I did. Do you have a list for the 72 codes? I may want to do mine myself and put the Numbered one back on. TANKS[/QUOTE]

Ask and ye shall RECEIVE .

Tux...

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Alternator rebuild (7/11)
1/1/10 3:20pm

kstyer

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CUYAHOGA FALLS, OH - USA

Vette(s):
1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

Joined: 12/2/2003
Posts: 6424

IF the alternator is working properly and supplying the correct amperage, you just need the diode trio. Common problem and not too hard to replace. kstyer2010-01-01 12:20:42

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Alternator rebuild (8/11)
1/6/10 9:20am

manchestershark

THANKS to both entrys. I will check out the old one and let you know if it is a good one, original. The one I have is bouncing on the guage . lights, dash lights go from bright to dim. Mark Who carries the parts?

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Alternator rebuild (9/11)
1/8/10 1:35pm

manchestershark

Hey Tux, Sure nuff it is the original altenator. A 61 amp for the air conditioning. THANKS for the info. Now I needs parts. Mark

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Alternator rebuild (10/11)
1/8/10 2:44pm

tuxblacray

Try Wilcox Corvette Accessories.

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Tuxblacray: She's Back In Black! Check out my pics @ My Link

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Alternator rebuild (11/11)
1/8/10 8:49pm

Ten15
Former Member
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East Hanover, NJ - USA

Vette(s):
'68 Black Conv. Matching 327/300 4 Spd. P/S, P/B, P/W, Tele, A/C

Joined: 9/25/2004
Posts: 525

If you're looking for a top notch rebuilder, try http://www.johnpirkle.com/. He is used by probably 95% of NCRS cars.

He sold me a restored 61a alternator for my '68 & I couldn't be happier.

Anthony

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