if you `ve fucked it then just smash it off anyway

to get a good one off without fucking it i always used a rubber hammer, opposite sides and mostly gentle taps.

if not then a piece of brass taped to the back of the pulley near the crank, and an air chisel (keep rotating the crank)


only had to do this once on a YB

i do loads of cambelts daily/weekly on allsorts and never have an issue with my ways