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alternator...what size does this thing need????
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Author:  vette_guy [ Fri Sep 03, 2004 10:48 am ]
Post subject:  alternator...what size does this thing need????

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christo72
Newbie
Joined: 26 Jan 2004
Posts: 2
Location: Vancouver, wa
Posted: 02 Feb 2004 11:38 pm Post subject: alternator...what size does this thing need????

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When I bought the car someone had doctored the wiring harness a bit to pump up the stereo, well when I got it the stock alternator was gone, and it has had charging problems from the beginning. someone told me it needed a 105 amp, but napa tells me it is a 75 amp..anybody know which it is?

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Desertdawg
Moderator
Joined: 17 Sep 2003
Posts: 159
Location: Gila Bend Arizona
Posted: 03 Feb 2004 01:22 am Post subject:

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Hi,
I checked mine, and it has stamped on it the numbers 1101 075 070A.
I don't know if it is original or not.
So I think mine has a 70 amp alternator. I'm not sure if this is the standard, or what, I will try to find out some more info for you.
_________________
Arizona Corvette Enthusiasts

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82collectorshark
Forum Member
Joined: 01 Apr 2004
Posts: 29
Location: Rhode Island
Posted: 16 Jun 2004 06:00 pm Post subject:

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Mine says the same as DesertDawgs.
Jules

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steveburges
Veteran Forum Member
Joined: 07 Oct 2003
Posts: 66
Location: Mountain Home, Arkansas
Posted: 17 Jun 2004 01:19 pm Post subject:

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The difference in alternators was because of the heated rear glass.
That must have taken a lot of amps to run, because GM put a much
bigger alternator in for the heated glass option. I understand that
the case itself is much bigger.
I ordered a custom wound 120amp unit from a parts store since I
had a big subwoofer system and needed power for the amp. But
as soon as it came in, I carefully took it apart(scary on a brand new
part) and put the two halves in a wooden vise, sanded smooth with
a makita palm sander with fine paper,then used a regular
car buffer and pad with buffing compound to buff it to look like
chrome! Wow! I had a nice shiny alternator for around 110bucks.
From what I hear, buffing your alternator to chrome finish is better
than real chrome as it cools much better than the chrome plating.

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S Ridner
Veteran Forum Member
Joined: 10 Aug 2003
Posts: 75
Location: Macomb Mi
Posted: 17 Jun 2004 01:42 pm Post subject:

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Atlternator with no rear defrost is 63 amps part # 1979865. Alternator with rear defrost is 70 amps part # 1101070.

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