Is it the rib belt drive pully or cam timing pully?
rib belt pully should have drilled and tapped holes. Need to use bolts and remover to suit... not the claw pully as it will just break pieces off the pully or worse break the rubber band and you will have a two piece pully paper weight
its the timing belt gear. finally got it off using a couple of claw hammers, one to wedge and one to repeated hit the handle of other hammer... took ages. next time, if i have access to something thatll heat it, ill try that method. there was a bit of rust, which explains the lack of cooperation from it..