Bicycle Mechanics - How not to remove ISIS crankarms

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Mine'sAPint
07-29-03, 11:34 PM
This evening I wanted to remove my ISIS crankarms to trace down a clicking that I think is in the BB. My crank puller isn't compatible with the new ISIS system, the "plunger" doesn't have anything to push on. I was sure I'd read on these forums that you could use a couple of pennies as a surface for the puller to push on...

Well, let me just say, that ain't the way to do it. Time to go out and buy a newer crank puller :crash:

http://home.earthlink.net/~ianmrae/Bikes/squish.jpg

Fortunately I don't think I did any permanent damage.

Kev
07-29-03, 11:40 PM
Get the correct Puller definately!! I did what you did on mine I actualy ended up stripping a few of the threads on my BB. I figured I was fine then went out riding next day crank arm fell off and basicaly threads on the one side of the BB were completely ruined.. Atleast was mainly downhill so I coasted holding crank arm in my hand but still had to walk quite a bit. So one day Mountain biking ruined.. $50 for new BB.. just so I could save the $15 and not buy a new crank puller, not worth it.
Mine'sAPint
07-29-03, 11:44 PM
Originally posted by Kev
So one day Mountain biking ruined.. $50 for new BB.

That sucks! Hopefully this lesson in having the correct tools only cost me 2 cents :)

Kev
07-30-03, 12:05 AM
First I tried the Dimes.. pennys did not quite fit right. Then used a bolt slightly larger.. not quite large enough :)