Originally Posted by
JohnDThompson
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?
Haven't tried a different one, but the CWP is fine for my crankset. I got it to work. I also checked to make sure that piece was contacting the bottom bracket spindle. It passes through the square taper fine.