You mean you can't get the pulley off, or you can't get the bolt out?
The pulley should just slide off (might need a bit of elbow grease if siezed on) but if you cant get the bolt undone you will need the correct size 1/2" drive socket and a breaker bar (about 500mm long) put the bar and socket on the bolt with the other end touching the floor at the passenger side (R/H/S as your looking at it) and get someone to give the ignition a quick flick (enough to turn the engine but not start the car. Just watch the bar doesn't flick back and hit something in the engine bay.....


SC TER