problem with exhaust manifold stud
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problem with exhaust manifold stud
well today i started taking off my exhaust system and unbolting things to get ready to put my new RB header on.
i decided to start with the hardest of the four manifold nuts, the top one closest to the front. i basically just used an extension and a breaker bar. it SEEMED to work fine, until i reached down and grabbed what i thought was just the nut, but for whatever reason the whole stud decided to come along for the ride.
what would be the best thing to do in this situation? the thread on the stud still looks in-tact. i'm not too sure where i would fine a new replacement one (i'm guessing hardware store that sells metric stuff), and i have never replaced a stud before.
i decided to start with the hardest of the four manifold nuts, the top one closest to the front. i basically just used an extension and a breaker bar. it SEEMED to work fine, until i reached down and grabbed what i thought was just the nut, but for whatever reason the whole stud decided to come along for the ride.
what would be the best thing to do in this situation? the thread on the stud still looks in-tact. i'm not too sure where i would fine a new replacement one (i'm guessing hardware store that sells metric stuff), and i have never replaced a stud before.
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Yes, put some loc tite on it and thread it back in there good. That's all there is too it. I took mine out on purpose recently because I couldn't get the engine out and my exhaust is welded from the downpipe back.
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i think replacing the stud(s) that end up coming out is a good idea. hopefully i can find the proper size at a store (i have never seen metric studs sold anywhere locally, but i haven't really looked).
then i have to figure out how to put the stud back in. it involves using two nuts i think?
thanks for the replys.
then i have to figure out how to put the stud back in. it involves using two nuts i think?
thanks for the replys.
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You thread the shiny part of the stud (where it is less corroded) back into the exhaust manifold. Do you see where it stops being shiny, there is no thread there. This prevents it from going too far. Thread it up with lock tite as far as it will go. Then take the nut off, and stick the downpipe on (with a gasket), and tighten the nut up with a lock washer. There you go.
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I pm'ed you about That Aaron..the stud will only go so far..then it hits the part of the stud where it has no thread..If you are using the same stud,what you will have to do is to make up the difference with washers,between the Nut and the header(due to the header flange being thinner than the Stock manifold).You could also get another exhaust stud...OR..you could try to Thread the stud(with a tap and die set) to accept a nut that would go between the Nut and the header..What you DO NOT want to do is to try to force the Stud into the housing.It will strip the Hole and you will Regret it Big time...I ran into the SAME thing when I took off my Stock Manifold.The Washer trick worked fine.In fact it is still holding.Just a little addition though..when you put the Header on,after you have it on for a couple days,go back and Retighten the nuts. The header will have settled into place and the nuts will require another turn.(at least mine did.which I'm assuming is only Normal)
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Looks like almost half as much thread area as the original. You might have a problem with ti backing out. Can you run a die down it to lengthen the thread?
I don't really see what's wrong with the original stud assuming you can get that nut off.
I don't really see what's wrong with the original stud assuming you can get that nut off.
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i don't have a die for that. that is what i am weary about, having half the threaded length.
you are right, i don't think there really is anything wrong with using the old stud, other than the fact that it is an old stud. a new one would be prefered, but i think if i can get that nut off fine i will just put that old stud back in.
i just didn't let the penetrant i sprayed sit for long enough. i waited a day on the other nuts and they all came out fine.
you are right, i don't think there really is anything wrong with using the old stud, other than the fact that it is an old stud. a new one would be prefered, but i think if i can get that nut off fine i will just put that old stud back in.
i just didn't let the penetrant i sprayed sit for long enough. i waited a day on the other nuts and they all came out fine.
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