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Help! Stuck Crankarm!!!(4 posts)

Help! Stuck Crankarm!!!crosscut
Jan 6, 2003 7:34 PM
It's winter and time to do my winter overhaul. Everything is going fine. I'm replacing cables, brake shoes, took my derailleurs off and cleaned and lubed them.
Then I got to the cranks. They are Dura-Ace splined. Been on the bike about a year and a half. Connected to an Ultegra BB, English thread. Nothing uncommon there. The drive side came off smooth. The non-drive side crank arm is STUCK! The are the self-extracting kind. It's like the splines are welded together.

Anyone else have this sort of problem? How did you solve it?
Park crank removal tool for Shimano nmDougSloan
Jan 6, 2003 8:23 PM
or hex socket on really long ratchet arm, and...DougSloan
Jan 6, 2003 8:25 PM
Oh, and one more thing; if you try it with the stock self-extractor, first remove the ring and grease it well on the back side; then reintall and attempt the extraction; might help.

What about Ammonia?Alpedhuez55
Jan 7, 2003 10:52 AM
I think Ammonia is used to help with a stuck seatpost in a steel frame. I think this is an aluminum to steel issue. It may work but I am not sure. I have never had this problem.

You would just use it like you would liquid wrench and let it set penetrate for a little while.

A couple of taps with a rubber mallet may help loosen it up a little as well. Not too hard though.

Mike Y.