Alternator Cases
Thread Starter
Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
Alternator Cases
Does anyone happen to know which case is used on the 84?
I just order a 140 amp and it had the wrong case s12 I believe it what is was and the mounting holes didn't match.
I just order a 140 amp and it had the wrong case s12 I believe it what is was and the mounting holes didn't match.
Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
http://www.zip-corvette.com/ProductDetails/ProductDetails.aspx?pid={6c3c3391-b0ab-4b14-9200-8a0c373dae38}&gid={304c3e4d-6d16-488d-8ca0-3877321e5625}&GroupName=Alternator&pname =84E+Alternator+(Remanufactured)&Referer =&Alias=&ptct=SGR-SR&CTitle=&
http://www.zip-corvette.com/ProductDetails/ProductDetails.aspx?pid={944c703a-5a84-43ad-900a-7cef25cdf3d4}&gid={304c3e4d-6d16-488d-8ca0-3877321e5625}&GroupName=Alternator&pname =84L-85E+Alternator+(Remanufactured)&Referer= &Alias=&ptct=SGR-SR&CTitle=&
84e and 84L
http://www.zip-corvette.com/ProductDetails/ProductDetails.aspx?pid={944c703a-5a84-43ad-900a-7cef25cdf3d4}&gid={304c3e4d-6d16-488d-8ca0-3877321e5625}&GroupName=Alternator&pname =84L-85E+Alternator+(Remanufactured)&Referer= &Alias=&ptct=SGR-SR&CTitle=&
84e and 84L
Team Owner
Joined: Sep 2003
Posts: 25,366
Likes: 2,732
Original production '84MY generators were 17S! - early cars or maybe all production was 97AMP and later the only service generator was a 108AMP.
Here's a 17SI slip-ring end http://store.alternatorparts.com/Pro...384_SUB_WC.JPG
Here's a 17SI drive frame:
http://store.alternatorparts.com/partno21106.aspx
The 12SI had an 8mm mounting hole on one end and 10mm the other. There was also I believe two different dimensions from center on the 10mm hole.
Now what I thought the ideal generator upgrade was to the CS130/CS144 or is there an "authenticity" requirement? A 17SI @ 140AMP might be hard to find, don't know. 120AMP were used on loaded Cadillacs and I don't recall anything else.
Here's a 17SI slip-ring end http://store.alternatorparts.com/Pro...384_SUB_WC.JPG
Here's a 17SI drive frame:
http://store.alternatorparts.com/partno21106.aspx
The 12SI had an 8mm mounting hole on one end and 10mm the other. There was also I believe two different dimensions from center on the 10mm hole.
Now what I thought the ideal generator upgrade was to the CS130/CS144 or is there an "authenticity" requirement? A 17SI @ 140AMP might be hard to find, don't know. 120AMP were used on loaded Cadillacs and I don't recall anything else.
Last edited by WVZR-1; Aug 27, 2012 at 03:44 PM.
Team Owner
Joined: Sep 2003
Posts: 25,366
Likes: 2,732
An original '84MY 97AMP (1105513) and the 108AMP (10479865) - anyone you buy from should be able to confirm those are 17SI with 2 10mm mounting holes. Check the mounting holes on yours from the images I gave you. You should be fine.
Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Thread Starter
Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
and summit had said this would work
http://www.summitracing.com/parts/TFF-7140FBULL6G. I had orginally gotten this but it was the 12si case. But now since I know for a fact its the 17si case I'm confident with ordering the new 140 amp alternator.
thanks
http://www.summitracing.com/parts/TFF-7140FBULL6G. I had orginally gotten this but it was the 12si case. But now since I know for a fact its the 17si case I'm confident with ordering the new 140 amp alternator.
thanks
Team Owner
Joined: Sep 2003
Posts: 25,366
Likes: 2,732
and summit had said this would work
http://www.summitracing.com/parts/TFF-7140FBULL6G. I had orginally gotten this but it was the 12si case. But now since I know for a fact its the 17si case I'm confident with ordering the new 140 amp alternator.
thanks
http://www.summitracing.com/parts/TFF-7140FBULL6G. I had orginally gotten this but it was the 12si case. But now since I know for a fact its the 17si case I'm confident with ordering the new 140 amp alternator.
thanks
Thread Starter
Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
You are correct it won't work. That is the one I mentioned in the first post. I was using that as an example....that summit said it would fit but doesn't. I did find a 140 amp with 17si case today that was in stock and ordered it. Thanks for the help
Team Owner
Joined: Sep 2003
Posts: 25,366
Likes: 2,732
What was it you ordered? Did you check your generator against the case images that I posted for you? Frequently when going from a 97AMP or 108AMP there's some wiring that needs done to utilize the larger 140AMP. I believe that most call for maybe a 6 AWG wire for battery lead that should also be fused @ maybe 200AMP. That's best of recolection you might want to check. Is it overkill for 140AMP? I wouldn't think so!
Last edited by WVZR-1; Aug 28, 2012 at 07:53 AM.
Thread Starter
Melting Slicks
Joined: Jan 2005
Posts: 2,658
Likes: 4
From: Clifton Park NY
What was it you ordered? Did you check your generator against the case images that I posted for you? Frequently when going from a 97AMP or 108AMP there's some wiring that needs done to utilize the larger 140AMP. I believe that most call for maybe a 6 AWG wire for battery lead that should also be fused @ maybe 200AMP. That's best of recolection you might want to check. Is it overkill for 140AMP? I wouldn't think so!
I ended up going with this. Hopefully I don't have to make any wiring changes.
http://www.parts123.com/parts123/yb....Z5Z5Z50000050F