My info on your water pump is fairly basic. Drain the cooling system. Remove radiator. Disconnect tachometer drive, if equipped. Remove hoses and fan belt. Remove mounting nuts and remove water pump. Install is reverse of removal.
You may have to remove crankshaft pulley. If that is the case, remove flywheel inspection cover, use small tool to keep flywheel from turning, So you can remove crankshaft pulley.