Thread: Ask Scrod
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Old 01-08-12 | 01:25 PM
  #2349  
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JohnDThompson
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Originally Posted by BigglyPuff
I'm trying to remove my Sugino RD cranks. I'm using the Park Tool CWP7, but I can't get the drive side crank off. I haven't tried the nondrive yet as I started with the drive side.

So I take the bolt out, thread in the crank puller all the way, although only with my fingers, and not with a wrench because I don't have a wrench large enough (could this be why?) and start turning the crank puller until it touches the bottom bracket. Then I try to turn it with a wrench, but I can't get past this point no matter how much force I put in. The thing ain't comin off.

Any tips or ideas? My next step is to get a wrench large enough to really tighten the crank puller into the crank threads before I try to start removing. Some people said to tap it with a hammer, but that seems like a last resort to me.
I'm not entirely clear on where the problem is, but one thing I've run into with the Park tool is that the piece that bears against the end of the spindle to push the arm off is sometimes too large to pass through the square taper in the crank arm.

Have you tried a different extractor?
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