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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Exhaust: Headers, Muffler, Gaskets, Supports » Archive through September 19, 2006 » Increased torque value when using distorted thread (centerlock) nuts? « Previous Next »

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2k4xb12
Posted on Wednesday, November 23, 2005 - 04:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When I installed my new header (2004 XB12), I noticed that the original nuts were relatively loose. It's a wonder they didn't vibrate off. When I installed the new one, I used distorted thread centerlock nuts. Since these have their own inherent drag due to the distorted thread construction, I would assume that the torque spec would need to be adjusted accordingly. If this is true, is there a simple rule of thumb (like add 3 lb-ft) to use in determining the proper torque?
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Ccemn1
Posted on Tuesday, February 21, 2006 - 04:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'd stick with the stock torque Specs!
The little bit if friction the nuts create probably doesn't amount to a quarter Ft. Lb. in torque. It's just enough to keep them from spinning off from vibration.
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