I used a proper pulley removal tool on mine and it was still a twat to get off! My engine was out of the car and on a stand tho which made life easier. Tried nylon hammer but it just took the piss and wouldnt play. Be careful not to use a metal hammer like my mate did, he eventually shattered the pulley and had to smash it off. Brute force and ignorance works every time! Lol