Originally Posted by FarHorizon
Title says it, pretty much - I've a crank (drive side with chainrings) where the cap threads are stripped. This is an older square-axle crank. Since my Park tool won't thread into the cap threads, I can't use it to remove the crank from the axle. I need some "brute-force-and-awkwardness" way to pry the crank off the axle without damaging the bottom bracket or the chainrings. Any ideas?
Thanks!
I had the same problem a few weeks back on a Peugeot I rescued. After giving the the crank a good soaking with WD40 and leaving it for a while to do its stuff I got a punch with quite a broad head and carefully tapped the crank off from the none drive side.
I placed a rag down in the "v" of the frame to prevent the punch scratching the paintwork. If you are careful and keep turning the chainring to spread the force and also hit as close to the spindle as possible it shouldn't take to much to knock it off the taper..... Worked for me!