Breaking AC bracket and shredding belts
Thread Starter
Team Owner
Joined: Jul 2004
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From: Hartford WI
Breaking AC bracket and shredding belts
A bit ago, my AC bracket broke and the belt shredded. No biggie. Now it has happened again. Where do I go look for the issue? It seems to take one edge off the belt but at the time I installed the bracket, everything SEEMED normal. Any clues?
Team Owner
Joined: Sep 2003
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What part number are you using for the bracket? The casting number if you have it.
Here's a recent thread but for an '86
http://forums.corvetteforum.com/c4-t...rive-belt.html
Here's a recent thread but for an '86
http://forums.corvetteforum.com/c4-t...rive-belt.html
Safety Car
Joined: Jan 2004
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Safety Car
Joined: Aug 2009
Posts: 3,752
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From: Melbourne, Victoria, Australia
See pic of the lower bracket's. you should have 2 at the front and the one at the rear of the compressor to the header studs.
I have not had a problem since, also really check the a/c and tensioner pulleys are aligned well, i have had my belt get chopped by the power steering pump pulley which was not pressed home all the way. so check all are in line and no wobble from any pulleys.
Last edited by gerardvg; Dec 29, 2012 at 03:27 AM.
Thread Starter
Team Owner
Joined: Jul 2004
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From: Hartford WI
My bad guys. This is for a 91.
I got the replacement from a salvage yard that had the right one. It was difficult to find since the part was obsolete. I am looking at 2 of them HERE and THERE
I know the replacement was for the right part because it looked the same as the one coming off and the part numbers seemed to match what the GM dealer said.
GERADVG. I know I have one that goes to the water pump and one that goes to the header stud. Not sure about the one that goes to the fuel pump block off. Where to get that one?
I got the replacement from a salvage yard that had the right one. It was difficult to find since the part was obsolete. I am looking at 2 of them HERE and THERE
I know the replacement was for the right part because it looked the same as the one coming off and the part numbers seemed to match what the GM dealer said.
GERADVG. I know I have one that goes to the water pump and one that goes to the header stud. Not sure about the one that goes to the fuel pump block off. Where to get that one?
Team Owner
Joined: Sep 2003
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There's 3 braces and I'm trying something new here so bear with me!
[IMG]
[/IMG]
#5 is GM 10105224 (RED)
#6 is GM 10105223 (YELLOW)
#9 is GM 10055753 (IN GERADVG's snapshot white arrow)
I'll get the image thing figured out in a while and fix it
GM 10105236 is the most recent and latest number for the bracket and that bracket would have that number cast on it. I would think I would want the most recent. If it has the other number cast on it it isn't the most recent.
[IMG]
[/IMG]#5 is GM 10105224 (RED)
#6 is GM 10105223 (YELLOW)
#9 is GM 10055753 (IN GERADVG's snapshot white arrow)
I'll get the image thing figured out in a while and fix it
GM 10105236 is the most recent and latest number for the bracket and that bracket would have that number cast on it. I would think I would want the most recent. If it has the other number cast on it it isn't the most recent.
Last edited by WVZR-1; Dec 29, 2012 at 12:45 PM.
Safety Car
Joined: Aug 2009
Posts: 3,752
Likes: 276
From: Melbourne, Victoria, Australia
There's 3 braces and I'm trying something new here so bear with me!
[IMG][/IMG]
#5 is GM 10105224 (RED)
#6 is GM 10105223 (YELLOW)
#9 is GM 10055753 (IN GERADVG's snapshot white arrow)
I'll get the image thing figured out in a while and fix it
GM 10105236 is the most recent and latest number for the bracket and that bracket would have that number cast on it. I would think I would want the most recent. If it has the other number cast on it it isn't the most recent.
[IMG]
[/IMG]#5 is GM 10105224 (RED)
#6 is GM 10105223 (YELLOW)
#9 is GM 10055753 (IN GERADVG's snapshot white arrow)
I'll get the image thing figured out in a while and fix it
GM 10105236 is the most recent and latest number for the bracket and that bracket would have that number cast on it. I would think I would want the most recent. If it has the other number cast on it it isn't the most recent.
When i put the later compressor and bracket on my 85 it did not come with bracket no. 5 or 6 and the a/c bracket did not last long.
My second a/c bracket i asked for all the attachments.
Also check the water pump ! some aftermarket ones do not have the correct heights for the bolt's, i found my new bracket would touch the heater return pipe before the bolts.
I could have broken another bracket if i was not careful. So double check the alignment of the places the bracket bolts to and do them up finger tight and check for any movement or space between bracket and mounting surfaces. Then use a ruler or string to check the pulleys are aligned correctly, especially the tensioner i find some can have a lot of play in the tensioner assembly and tilt a little.
Last edited by gerardvg; Dec 29, 2012 at 08:56 PM. Reason: more info
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Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
What strikes me strange is that the way I have it set up worked for a while before it broke. The new bracket broke within a thousand miles. I am wondering if there is something else that could cause it.
Team Owner
Joined: Sep 2003
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So I need #6? I have #5 and #9. Any clues on where to get #6 since it is probably obsolete from GM? TIA.
What strikes me strange is that the way I have it set up worked for a while before it broke. The new bracket broke within a thousand miles. I am wondering if there is something else that could cause it.
What strikes me strange is that the way I have it set up worked for a while before it broke. The new bracket broke within a thousand miles. I am wondering if there is something else that could cause it.
A post in the "wanted/for sale" might get it done.
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
The last one has the part number of 10105236. Not sure about the first one since it was original and I didn't check.
Any ideas what to check for so it doesn't happen again?
Any ideas what to check for so it doesn't happen again?
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
Hi. i broke my first bracket, do you have the correct support brackets.?
See pic of the lower bracket's. you should have 2 at the front and the one at the rear of the compressor to the header studs.
I have not had a problem since, also really check the a/c and tensioner pulleys are aligned well, i have had my belt get chopped by the power steering pump pulley which was not pressed home all the way. so check all are in line and no wobble from any pulleys.
See pic of the lower bracket's. you should have 2 at the front and the one at the rear of the compressor to the header studs.
I have not had a problem since, also really check the a/c and tensioner pulleys are aligned well, i have had my belt get chopped by the power steering pump pulley which was not pressed home all the way. so check all are in line and no wobble from any pulleys.
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,475
Likes: 3,291
From: Hartford WI
http://www.ebay.com/itm/1988-1991-Co...b9a78c&vxp=mtr
Looking at that piece, there is no way to hook that 3rd brace on.
Looking at that piece, there is no way to hook that 3rd brace on.
Team Owner
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http://www.ebay.com/itm/1988-1991-Co...b9a78c&vxp=mtr
Looking at that piece, there is no way to hook that 3rd brace on.
Looking at that piece, there is no way to hook that 3rd brace on.
I believe that is probably the earlier part number before the braces. Have you got your brace from the west coast yet?
Last edited by WVZR-1; Jan 9, 2013 at 08:55 PM.
Team Owner
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Do you see where it attaches in the last snapshot I posted? Those are 10105236 brackets. You can blow them up and zoom to the casting number on them. I see the difference I believe!
Thread Starter
Team Owner
Joined: Jul 2004
Posts: 28,475
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From: Hartford WI
Seems to me like there are 2 brackets. One with the boss for the lower bracket and one without. Anyone know why there are 2 different ones? Is there a difference? What is the difference?
Drifting
Joined: Aug 2010
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Does Anyone talk about the freesbe here?if i'm not wrong the reason why they did it was to solve this issue:broken brackets whit larger ac compressor since 86.the freesbe acts as a dampener the same way as harmonic balancer does.continuing to clear engine bay does that...you put new headers and all brackets for alternator and Ac went off...you change water pump and...ops the freesbe went off...
Last edited by tunedport85inject; Jan 14, 2013 at 05:12 AM.
Safety Car
Joined: Aug 2009
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From: Melbourne, Victoria, Australia
I have the same bracket as in the photos above with the hole for the lower bracket that you can just see. I did make a bracket on the weekend, cut out of some 1/4 inch steel with my oxy & acetylene to a boomerang shape to clear the lower radiator hose, and half inch spacer to mount to a/c bracket . I should have taken pics and dimensions i know
The top water pump bolt to lower front compressor support came with my 88-91 bracket and i made a brace to support the top rear
a/c to exhaust header as the seller could not find it ... that was a few years ago.
Pro
Joined: Oct 2008
Posts: 706
Likes: 265
From: Jyväskylä, FINLAND
Also had a broken compressor bracket couple of years ago... Fortunately, I always have a spare belt within the car...
Because the bracket was really 'gone'
I think that was caused by the broken threads in one of the compressor bracket's attachements at the end of the cylinder head. Here are some pictures of the repair http://finnshark.com/forum/showpost....postcount=2125
Because the bracket was really 'gone'
I think that was caused by the broken threads in one of the compressor bracket's attachements at the end of the cylinder head. Here are some pictures of the repair http://finnshark.com/forum/showpost....postcount=2125