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Which direction does the self extracting(11 posts)

Which direction does the self extractingLone Gunman
Aug 23, 2002 1:59 PM
bolts on an Ultegra BB turn? Drive side, then non drive side. It has been a while since I removed them and I gotta strip the bike this weekend to get it ready for paint work.

Does the drive side come off like the lefty/loosen(counterclockwise)righty/tight(clockwise) I for some reason feel there is a reverse threading in there somewhere.

Thanks for help!
drive side - reverse thread (nm)Jekyll
Aug 23, 2002 2:01 PM
assuming it's an english threaded bb!merckx56
Aug 23, 2002 2:28 PM
italian bb's are standard threading on both sides. the self-extracting bolts are standard threading.
Italian and French thread question........Dave Hickey
Aug 23, 2002 3:07 PM
I have a Gitane single speed. How do you keep the drive side cup tight? Because of the standard threaded drive side, it's always coming loose. Any tricks????
Trick = brute force tightening (nm)Kerry
Aug 23, 2002 3:58 PM
Italian and French thread question........merckx56
Aug 24, 2002 3:18 PM
I have always used some teflon tape on the cups and cranked the bitch down! screw a torque wrench! a campy bb i installed not long ago came loose once...notice i said once!
me must read post in full before reply to post, me repeat 100...Jekyll
Aug 23, 2002 4:10 PM
sorry - misread the post... thought you were asking about the bb shell... sorry, my bad.
Self Extracting Crank BoltsB2
Aug 23, 2002 2:10 PM
have "normal" threading. The BB bracket itself is as Jekyll described.

Bryan
Be careful.........gogene
Aug 23, 2002 2:51 PM
If you are going to use the self extracting bolt feature, make sure the cap covering the crank bolt is snugged down. If it isn't, the bolt can come through that cap, and that's a whole 'nother story. The crank bolts loosen, on both sides, in the conventional counter-clockwise direction. When re-installing the crank bolts, remove the aforementioned caps so you can see that the splines (if you have the splined cranks) are lined up before you tighten them down. Lube the crank bolts and crank bolt caps.
no need...merckx56
Aug 24, 2002 3:21 PM
to remove the dust caps before re-installation. simply grease everything and put the crank on the splined spindle. get the bolt to just barely grab the threads and stop tightening. wiggle the crank and it will slide onto the splines. the other side is a simple matter of lining it up and doing the same! i've NEVER taken those caps off! even when i was turning wrenches in the shop!
Never, eh? Some of us don't work in a shop......gogene
Aug 24, 2002 3:41 PM
....and don't remove cranksets a zillion times a year. The act of removing the crankbolt caps takes little time and almost zero energy, so we may be 100% sure that everything is correct before yarding down on the bolts to a bunch of foot/pounds.