I am trying to replace the fan clutch in my E30 and have the nice 32mm wrench necessary but that damn nut won't budge. Bentley states to give it a sharp whach with the heel of your hand and it comes right off. BULLS#$%! my hand is bruised and that thing is still on. the belt slips on the pulley and it is tight. Is there anything to hold to keep everything still? Sean