Paramount Fan
Join Date: Dec 2006
Location: Vermont
Posts: 293
Bikes: Paramounts, Raleigh Pros, Colnago, DeRosa, Gios, Masis, Pinarello, R. Sachs, Look, D. Moulton, Witcomb, Motobecane, Bianchis, Fat City, Frejus, Follis, Waterford, Litespeed, d'Autremont, others, mostly '70s-'80s
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 123 Post(s)
Probably far too late for this advice, but never drill out crank cotter pins. If, like most normal people, you don't have access to a cotter press, support the back side of the crank arm and drive the cotter out. An experienced mechanic can usually get them out in good enough shape to use them again, and those don't look bad at all in the pic. If the threaded portion mushrooms out before the pin moves, you can break the threaded part off by driving it back and forth, then drive the tapered part out with an appropriately sized drift. The key is to support the crank arm so the blows are not being absorbed through the bearings (and likely ruining them.)