alright, maybe dumb, but how do i tension the water pump belts on my stock 50 flathead? just want to find out if there's a correct way before i go screwing something up. thanks, billy
Loosen bolts, tighten belt. Leave a half inch if play. You are done now drive it like you stole it....end of story
I usually tighten to about 2 inches of play with stock pumps without the bearings. Too tight and your pumps will be leaking in no time. Bearing pumps are usually 1 inch play
The Ford Manual recommends 1/2" defection with "normal" thumb pressure taken between the water pump and the generator (first belt to adjust) then between the fan and the water pump (second belt to adjust.