drift punch will concentrate hammer blows on the end of the cotter,
a hex head bolt you can bang on will do, most likely..
But I'd seek out a shop with a cotter press 1st, you may be able to re use the cotter thereafter.
Bang it out and you will need to file the taper on the new one , until it fits properly.
threads not munched up in getting it out a + ..
Last edited by fietsbob; 11-09-10 at 12:29 PM.