header bolts backing out
06-01-2006, 07:28 AM
#11
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Originally Posted by CHEVY6000VHO
I've had the stainless bolts on my Avalanche since they first came out. I haven't had to touch them since I heat cycled them and retorqued the bolts almost three years ago.
06-02-2006, 08:54 PM
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I put mine in at 85lbs., not knowing because the directions didn't say. I had a air rachet to get to the tight areas, but didn't break any bolts. When I found out what the specs, were, I about freaked!! Will anything happen being that tight?
06-02-2006, 09:00 PM
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Originally Posted by MorepowerTY
I put mine in at 85lbs., not knowing because the directions didn't say. I had a air rachet to get to the tight areas, but didn't break any bolts. When I found out what the specs, were, I about freaked!! Will anything happen being that tight?
85 ft lbs on a small bolt like that??? Why?? Do some research if you don't know prior to the install.
If I were you, I wouldn't have even posted that I did that.
My directions show the torque specs.
Jim
06-03-2006, 01:29 AM
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you can also put a little bit of loctite jsut under the head of the flange on the bolt wher ethe threads do not touch the head, that will hold them in place (just like rockers)
06-03-2006, 01:38 AM
#15
Originally Posted by MorepowerTY
I put mine in at 85lbs., not knowing because the directions didn't say. I had a air rachet to get to the tight areas, but didn't break any bolts. When I found out what the specs, were, I about freaked!! Will anything happen being that tight?
No way you got them that tight. It's not physically possible. The bolt would break or strip out the aluminum at less then half that.
06-03-2006, 02:26 PM
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I'm not sure if they are that tight. I was just using a 85lbs. air rachet. I checked them a few days ago, and they are not stripped and no leaks anywhere, thank god! I posted it to see if anybody else has done this to see what, if anything will happen. JBA install instructions did not have it in there, and my stock manifolds where tight as hell. so just though I would tighten them as tight as the stockers.
06-03-2006, 04:22 PM
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Originally Posted by kbracing96
No way you got them that tight. It's not physically possible. The bolt would break or strip out the aluminum at less then half that.
06-05-2006, 12:36 AM
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Originally Posted by MorepowerTY
I'm not sure if they are that tight. I was just using a 85lbs. air rachet. I checked them a few days ago, and they are not stripped and no leaks anywhere, thank god! I posted it to see if anybody else has done this to see what, if anything will happen. JBA install instructions did not have it in there, and my stock manifolds where tight as hell. so just though I would tighten them as tight as the stockers.
When torqueing bolts into aluminum or when torqueing small bolts down, use recommended torque specs. You can easily find this on the web.
Jim
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