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crank arm stuck on spindle(7 posts)

crank arm stuck on spindlechad warwick
Mar 24, 2001 3:48 PM
any suggestions on how to remove a crank arm with stripped dust cap threads from the spindle? Tried to hacksaw the spindle off but the steel is too hard. Prying it wasn't working and I don't want to use so much force that it damages the bb shell. Somebody mentioned an automotive gear puller. ???
re: crank arm stuck on spindleSpoke Wrench
Mar 24, 2001 5:05 PM
I used to have a "pickle fork" tool to do that. I think auto mechanics use them for ball joints. It's a two tine fork with an angle cut into one side. You stick it between the crank arm and bottom bracket shell and hit it with a BFH until the arm comes loose. Medieval, but effective.
Try riding it...Red Dog #1
Mar 25, 2001 12:25 AM
Usally it'll come loose after awhile.
OOps,,Red Dog #1
Mar 25, 2001 12:27 AM
Forgot to say after removing the crankarm bolt.
re: crank arm stuck on spindleDrD
Mar 25, 2001 12:40 PM
The gear puller is a good idea, and will work - as will the pickle fork (though the latter may damage the BB shell in the process)

You can pick up a cheap one at almost any parts shop for very little $$$ - just make sure it can handle the crank (i.e., that it can be adjusted small enough) - you also will need to leave the crank bolt installed a little bit (need something to push on)
Two by Four and a rubber mallet ...Breck
Mar 27, 2001 9:49 PM
Forged crank arms are very strong. Remove the bolt. Get the 2X4 flush to the crank arm and up against the bottom bracket. A few sharp raps with the mallet should do it.

Torch it!Fireman
Mar 28, 2001 5:34 AM
Use a torch to heat the aluminum crank arm. It will expand and loosen off the spindle. Aluminum co-efficient of thermal expansion is much greater than that of steel.

Burn Baby, Burn