Are the threads on the nut for the crankshaft pulley left or right handed?
Hi they are normal nuts so will undo anticlockwise, but to undo this nut/bolt your going to need to lock the flywheel you can do this by either removing the starter motor and jamming a big screw driver in the teeth of the fly wheel so that it lock on the casing of the gearbox or you can undo an inspection panel on the gearbox to give you access to the fly wheel and then jam it that way other than doing this you would need air tools to undo this nut without jamming the fly wheel
