351 Cleveland power steering

[69 302/351c]

On a 351c, does the PS belt go from crank to PS pump or also around the water pump pulley? The crank pulley and the PS pulley have a 1/2" groove, the double groove water pump pulley has 2 3/8" grooves, one is for the alternator. Even though they line up, I'm thinking it's direct to the pump, not using the water pump pulley since doing it that way has a constant squeal that no amount of adjusting or new belts will cure. Thanks

 

[pabear89]

On mine the belt drives the water pump and power steering.
the alt belt is alone in the rear groove on the crank.
But I have A/c.

 

[69 302/351c]

Well, I don't know for sure what the motor had for options other than it is a 72 or if these are the original pulleys. Right now, the alt and water pump run off the first groove and I'm trying to use the rear groove ( as it is on my 302)
for the PS.

 

[Sir TWIG]

A Guess

I'm thinking you have the wrong pulley for the water pump. I does not make much sense to have different sized groves on the pump than the crank.

I just looked at my 72 351c 2v. The back belt, closest to the motor uses the smaller diameter groove in the crank then water pump then power steering pump. My water pump pulley only has one groove. The next belt is crank (larger diameter) to Alt only, nothing else. I have a third groove (same diameter as Alt) on the crank for the A/C but not in use at this time.

I'm sure different years with different options have different layouts so this may not be any help at all. Maybe find a different water pump pulley or order a set of under drive pulleys, that way you have a matched set you know will work.

 

[69 302/351c]

Finally found my problem. I have a crank pulley with different diameter grooves. I was trying to run both belts around the 2 same diameter groove water pump pulley. Obviously the belts want to run at different speeds..hence the unrelenting squealing.
Now I will go direct to the PS pump from the crank.