Best way is to purchase a water pump pulley remover, they are pressed on and have no way to grab with a conventional puller, the specialty puller is fantastic and not too expensive. Many are just bolted on so check that first.
The water pump is driven by the pulley and serpentine belt on the left side of the engine. You'll need to remove the water pump pulley to access the water pump housing bolts. You may need to remove other pulleys to access the bolts. Replace the water pump gasket to prevent leaks.
loosen the idler pulley and then remove the belt. then you remove the fan shroud i believe its like 4 bolts, then you remove the fan. after that you can remove the water pump.
The pulley is pressed fit onto the pump. It will not come off the pump. You have to replace the pump to replace it.
That is the water pump pulley.
With a 36mm wrench and a spanner to hold the water pump pulley.
Behind the water pump pulley. The water pump is small so the water pump pulley covers the entire pump so you can't see it. Once you remove the serpentine belt and the water pump pulley, the pump is easily accessible.
The pulley is part of the pump assembly. I don't think it comes off. The clutch fan unbolts from there. Is that what you mean?
Loosen the belt with the tensioner pulley. Take the belt off. Drain the water from the cooling system. Remove the hose. Remove the retaining bolts from the water pump. Reverse the process to install the new water pump.
Not sure on a '94, but on a '90 w/ a 1.6 you just remove the pulley bolts on the water pump, take off the pulley and belt, remove the thermostat housing on the side of the water pump, and then remove the water pump bolts. After that you can take off the water pump.
pulley puller
36mm wrench and a holder for the pulley. The fan is reverse threaded on a diesel.
Remove serpentine belt, alternator, and power steering pump. Remove 4 water pump pulley bolts. Remove water pump housing bolts. Remove water pump.