I know this is an old post but I've just "refurbished" the Longworth I made five or six years ago. Due to a house move and other issues getting in the way mine had been sitting unused in a couple of damp garages for a few years and had siezed up. I've sanded down and waxed both of the discs and replaced the rusty washers and it works fine now. You've probably got yours working now, did it just need some wax as well?