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r1200s_qld's Avatar
 
Join Date: Feb 2009
Location: Mount Isa QLD AUS
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Stripper exhaust stud - now what?

Hi Everyone,

I have managed to cross thread one of the exhaust studs when putting new headers on recently, and I am wondering if anyone knows how hard they are to get out?

Can I just grab the stripped end with vice-grips, and twist it out? And is the thread into the head normal, or does it turn the other way??

Any advise will be most useful,

thanks

andrew
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Old 05-31-2009, 12:21 AM
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andrew:

I vote against the brute force method. If you want to remove the stripped stud I would get a good penetrating oil (not WD40) intended for loosening rusty fasteners, drown the joint for at lest 12 hours, then apply torch heat to one side only of the flange the stud seats into. This combination should loosen the stud enough that you can back it out with a wrench.

Otherwise your next step is going to be the insertion of a heli-coil into the flange to repair that damage, too. And you might be looking at that anyway.
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Old 05-31-2009, 05:41 AM
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PB Blaster worked when I removed the exhasust studs on my R1100S
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Old 05-31-2009, 05:58 AM
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Moybin's way is he best. I replaced all of the exhaust studs with longer ones to accommodate the SJBMW exhaust accelerators. I used the double nut method to remove the studs after squirting them with penetrating oil.

Philip
Old 05-31-2009, 06:57 AM
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thanks all, I will soak her for next day or so and have a go at it mid week.
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Old 05-31-2009, 04:40 PM
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Might also give the end of the stud a sharp rap with a hammer prior to taking it out. If you have done all the above and the stud still does not want to turn fairly easily, heat the area around the stud again. Good luck.
Old 06-01-2009, 06:41 AM
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Old 06-01-2009, 11:17 AM
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stud removal

The safe way to get it out is to spray with wd 40 or some penetrant and use a stud extractor. Looks like a socket with fingers inside that tighten on the stud as you back it out. They work very well.
Old 06-01-2009, 01:31 PM
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you're not alone rapid.

enticed by the headline and the word "stripper", i opened the thread to find the following:

"drown the joint for at least 12 hours"

then...

"thanks all, I will soak her for next day or so and have a go at it mid week."

and finally:
"Might also give the end of the stud a sharp rap with a hammer prior to taking it out. "

so...i dunno....i'm with you.
maybe pictures would help us?
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Old 06-01-2009, 01:40 PM
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stripped studs, penetrating, insertion, soak her, double nut? I can't imagine where your heads at?!
Old 06-01-2009, 07:25 PM
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Old 06-02-2009, 06:06 AM
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Got the stud out! The two nuts on the stud trick did not work because of the damage to the end of the thread, so I disconnected the battery, and got out the arc welder and just welded the nut in place, and hoped that no stray electric flow got anywhere near the computers.

But all is well, stud replaced, and bike is running just fine.

thanks again to those that offered advise

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Old 06-06-2009, 02:52 PM
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Old 06-06-2009, 02:52 PM
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