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Exhaust manifold nuts - what type of socket?

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Old 04-27-2007, 08:12 AM
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Thumbs up Exhaust manifold nuts - what type of socket?

I would like to ensure that the nuts holding my turbo manifold to the cylinder head are properly torqued. I have a torque wrench, and standard sockets, but there isn't a whole lot of room for a socket around the nuts. Should I be using something like this?

http://www.sears.com/sr/javasr/product.do?...UseBVCookie=Yes
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Old 04-28-2007, 04:26 AM
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No input?
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Old 04-28-2007, 08:00 AM
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On a stock mainifold, I had no problem getting a socket on them. The stock nuts have a small head w/larger flange. We used the same nuts on my turbo mainifold. The mainifold interfered and we had to do it by hand.

Are you using OEM nuts? If not, use them. They were designed to allow a socket to fit in tight quarters.
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Old 04-28-2007, 08:09 AM
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Originally Posted by Stratocaster,Apr 28 2007, 08:00 AM
On a stock mainifold, I had no problem getting a socket on them. The stock nuts have a small head w/larger flange. We used the same nuts on my turbo mainifold. The mainifold interfered and we had to do it by hand.

Are you using OEM nuts? If not, use them. They were designed to allow a socket to fit in tight quarters.
There isn't an issue with tightening the OEM nuts on the OEM manifold. The issue I am having is tightening the OEM nuts on the Full-Race manifold--the positioning of some of the runners makes it impossible to access the nuts using a traditional socket. There is only a few inches of clearance between some of the nuts and runners, and well as minimal clearance between the nuts and the part of the manifold which mounts to the head. I could probably use a wrench, but wouldn't be able to determine a specific torque.
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Old 04-28-2007, 08:39 AM
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We could not determin the specific torque either. I want to say the specific torque setting is fairly low (20ish) and that is easy to get to by hand. We also check them from time to time just to be sure. The OEM nuts are of a locking design. We never found one to have backed off.
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Old 04-28-2007, 08:57 AM
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Originally Posted by Stratocaster,Apr 28 2007, 08:39 AM
We never found one to have backed off.
Really? I've had a lot of problems with various bolts/nuts backing off. I am freaking jinxed!


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Old 04-28-2007, 09:01 AM
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According to the factory manual, the self-locking nuts are supposed to be torqued to 23 lbf-ft and should be replaced each time they are removed.
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