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Stripped all the threads in trying to extract a square taper crank arm. What to Do?

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Stripped all the threads in trying to extract a square taper crank arm. What to Do?

Old 10-04-12, 07:45 PM
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cazzooo
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Stripped all the threads in trying to extract a square taper crank arm. What to Do?

I have and old square taper BB and Crank Arm. I have stripped it buy trying to extract it and the extractor came out and not the crack arm off. I did this twice it is completely ruined. What can I do?
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Old 10-04-12, 07:47 PM
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An automotive pulley puller.

A ball joint tool.

Heat it and hit it with a hammer.
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Old 10-04-12, 07:52 PM
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Or those wedge-thingies that someone (FBinNY ?) mentions when this topic comes up

Then buy a new crank
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Old 10-04-12, 07:55 PM
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No big deal. You buy a pair of these of under $10.00, and take the crank off as it was intended to come off that way.

If $10.00 is too much, try this emergency trick. Replace the crank bolt, and back it off about 1/2 turn or 1mm. Ride the bike up the steepest hill tou can find, using as high a gear as possible so you have to stand. Odds are you'll hear or feel the click of the crank popping loose (saved by the bolt), before you reach the top. Take it easy back to base, remove the bolt, and the crank will slide off. This works about 80-90% of the time.
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Old 10-04-12, 07:56 PM
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Originally Posted by Homebrew01 View Post
Or those wedge-thingies that someone (FBinNY ?) mentions when this topic comes up

Then buy a new crank
You beat me by a minute due to slow typing. But there's no need to replace the crank, since you now have a remover.
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Old 10-04-12, 08:02 PM
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Could someone who can do this sort of thing make a sticky specifically
for this problem, please ? Pretty please ? Just take some stuff
that's pertinent from the last twenty or thirty threads on this and we should
be good.
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Old 10-05-12, 06:16 AM
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Originally Posted by 3alarmer View Post
Could someone who can do this sort of thing make a sticky specifically
for this problem, please ? Pretty please ? Just take some stuff
that's pertinent from the last twenty or thirty threads on this and we should
be good.
Yes, please. And also one for "I pulled out my quill stem wedge bolt and I can't figure out how to tighten it up again".
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Old 10-05-12, 06:46 AM
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Originally Posted by FBinNY View Post
But there's no need to replace the crank, since you now have a remover.
True, except for the OCD "everything must be perfect" types.
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Old 10-05-12, 07:29 AM
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yeah, i think so, Could someone who can do this sort of thing make a sticky specifically
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Old 10-05-12, 08:41 AM
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The term a few people are looking for is "Pickle Fork"...used for separating lots of automotive things. I have yet to try mine on it, but it seems like it could work in a pinch.
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Old 10-05-12, 08:48 AM
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Originally Posted by Turbo231 View Post
The term a few people are looking for is "Pickle Fork"...used for separating lots of automotive things. I have yet to try mine on it, but it seems like it could work in a pinch.
The advantage of the wedges is that the working faces stay parallel and are unlikely to bend or mar the components being separated; the pickle fork is a bit less benign. In the event that the wedges are not wide enough to fill the gap between the crank and frame inserting something like a cone wrench will take up the slack.
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