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Cylinder stud removal

Posted: 11:05 pm Mar 03 2010
by komaiaboyz
Hello, Does anyone have any advice on removing the studs from the cylinder head? Thanks. Also anyone have a RH KIPS for a 1994 KDX 200? Thanks

Posted: 11:15 pm Mar 03 2010
by Indawoods
Thread on two nut on the stud... snug them against each other and then turn the stud out with the bottom nut.

And ... not me.

Posted: 11:26 pm Mar 03 2010
by Mr. Wibbens
I googled it and found this: Anyway, you just take two of the head nuts, thread one on upside down, the other right side up so the flanges are back to back. Tighten them together so they won't slip and then turn the bottom nut counter-clockwise. This will break the stud loose and then you can unscrew it by hand or just finish unscrewing it with a wrench.

Posted: 11:32 pm Mar 03 2010
by Indawoods
Wow... I didn't even have to Google 'cause I have done it before! :mrgreen:

Posted: 11:44 pm Mar 03 2010
by Mr. Wibbens
Not me, never had the need, and hope I don't, sounds skeery

Posted: 12:04 pm Mar 04 2010
by fuzzy
Jam-nut technique works on any threaded in stud. Better than vice grips even! :mrgreen:

Posted: 01:08 pm Mar 04 2010
by barryadam
I've had some studs on old Enduro restorations that were a bit more challenging.
Long term application of Kroil, aluminum jaws in a vice, and application of some heat (last resort) did the trick. The aluminum jaws did not damage the exposed studs.
Hopefully, the jam nuts will work and you won't have to go to more drastic measures.
Just remember to run a thread chaser on the studs and the cylinder threads before reassembly. Tap and die would be a second choice if you don't have a thread chaser.

Barry

Posted: 02:40 pm Mar 04 2010
by fuzzy
I have seen studs so stuck that the jam-nut would start twisting a hardened stud like a twizzler (not on a bike). A good trick is to 'lap' the jam nuts so when tight the hexes line up...Then hit em with an impact gun. Barryadam those are all good tips.