Fitted two secondhand crank pulleys, the first one was a one cleaned up from The stable of Mr Mechanical Genius........nope huge amounts of runout, enough to chuck the belt off
The second came off a scrap engine, and after fitting seemed ok, now to test drive it for a day or so before committing to a new Corteco one........this is a theoretical get out of jail card before I pull the gearbox out to replace the flywheel
I'll clean up the original pulley tomorrow and give it a good inspection, but the preliminary signs are positive.........which is what I need at the moment