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

Missing bolt for AC, Need to know Size

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Old May 9, 2007 | 07:31 PM
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Default Missing bolt for AC, Need to know Size

Today I was doing my check under the hood thing when I noticed a missing AC bolt. Then I checked all the other componets most bolts were pretty loose as well. I do not Have a FSM, can someone please tell me what size the bolt is? (please see photo) Thanks.. Mark

http://i160.photobucket.com/albums/t...e/missbolt.jpg
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Old May 9, 2007 | 08:06 PM
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In the picture, from that angle, is a little hard to tell what bolt that is. If it is the bolt that goes through the brace that goes to the exhaust manifold, it is a "bolt, hex, flange headed, M12 X 1.5 X 25". If it is the bolt the goes through the rear of the aluminum compressor bracket, through the compressor and then threads into the front of the compressor bracket, it is a "bolt, hex, flange headed, M10 X 1.5 X 105". The two bolts holding the two braces (exhaust manifold & intake manifold) to the compressor are the same. Those are the only three bolts *I* see installed from the rear.

RACE ON!!!
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Old May 9, 2007 | 08:13 PM
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My guess is that it's the same as that "98" bolt in the top of the pic.
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Old May 9, 2007 | 08:17 PM
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Originally Posted by N.C. Kid
Damn. That was a long very confusing answer. Your really smart.
"Your My what is really smart? Possibly you are really...

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Old May 9, 2007 | 08:55 PM
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Was there a purpose to you posting, with no help? "Glad the OP found out the problem." The OP already knew the problem, that is why he posted. Besides worthless posts to drive up your post count, all you are doing is revealing your true self. You have my sympathies.

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Old May 9, 2007 | 10:17 PM
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Thanks for the bolt specs. It is the bolt that mounts through the brace to the compressor.
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Old May 10, 2007 | 01:47 AM
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Default here's what the chevy book says

Item #11 8.900 Bolt HEX FLG HD (M12 x 1.5 x 25)

The only other one that it could be is
Item 5 8.900 Bolt HEX FLG HD (M10 x 1.5 x 105)
but I think that is the top bolt you already have. It'd be easier if you had blocked part of the picture with the "what size bolt fits here".

Hope that helps.
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Old May 10, 2007 | 02:01 AM
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If the bolts in question are the same as 1987 compressors, I have them if you need them.
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Old May 10, 2007 | 12:02 PM
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Originally Posted by RMarc
here's what the chevy book says
Item #11 8.900 Bolt HEX FLG HD (M12 x 1.5 x 25)
That is also what CFI-EFI said.



Originally Posted by RMarc
The only other one that it could be is
Item 5 8.900 Bolt HEX FLG HD (M10 x 1.5 x 105)
but I think that is the top bolt you already have.
Item "5" is not the top bolt. Item "11" through the brace from the intake manifold is the top bolt. There are two (2) items "11". The one at the top is for the brace that connects to the intake manifold and the lower is for the brace that connects to the exhaust manifold.

RACE ON!!!
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Old May 12, 2007 | 11:41 PM
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Originally Posted by bogus
If the bolts in question are the same as 1987 compressors, I have them if you need them.
My brother-in-law just so happend have the bolt I needed laying around on his work bench. I just had to be 100% sure of the size. Thanks Folks...
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