Thanks for the reply Grumpy. I have said pulley soaking in Penetrene as I type. Grub screw removed, and correct sized pulley-remover on stand-by....will leave it to the weekend I think. I really don't want to screw these parts up as I've waited a long time to get hold of a Villiers 12/2 with a standard reduction box which I need to get the Supercut going properly.
Thanks again for your advice,
Craig