Okay, the fan has the clutch unit on the front with the large nut attaching it to the water pump. Then 4 screws attach the pulley to the water pump as well. What's the best way to immobilize pulley/pump so I can get the fan blade clutch nut unscrewed? Can't hold onto the fan or clutch unit since it simply spins. Can't realy seem to hold onto the pulley either as it prefers to spin? Any suggested best ways?