[Growley bear]

To replace the H2o pump on my model A W/four blade fan I have to remove the radiator shroud, remove or disconnect anything attached to the radiator including the two bolts W/springs at the bottom then tilt the radiator forward until it touches the headlight bar and there is just enough room to sneak the pump out. And I also shield the radiator with a piece of cardboard. Good luck,

Chet