Exhaust Manifold to Exhaust Pipe Studs
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5th Wheeling
Joined: Apr 2021
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From: Nicholasville
Exhaust Manifold to Exhaust Pipe Studs
Hello all, I’ve a 1985 300 cu in engine and having issues keeping exhaust manifold to exhaust pipe studs tight. I loosen lock nuts, tighten stud nuts and retighten lock nuts. After a short time, maybe <200 miles it starts exhaust leak again. Not a great deal but a noticeable amount of noise. Thought about removing studs and replacing with new. Before I attempt removing the studs, thought it’d be good to have a new st on hand as the old studs will probably break. What is the size needed and has anyone else had this happen? I believe the “donut” looks to be made of a fiber material? Many thanks.
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