I have a problem with my 4age ke70 it keeps snappin the water pump thats the 2nd pump ive been frew I'm running a clutch fan would anyone have an idea what may be the problem.

Edited October 25, 200917 yr by KPROLN

You are over tightening the belt.

No idea what you are running or how it is breaking, but the front wheel drive pump is different to a RWD one.

 

FWD isn't designed to have a fan bolted to it, plus the nose of the FWD pump is from memory longer. So, depending on what combination of pumps and pulleys you are running in rear drive configuration, possibly the belt deflection is loading the pump excessively? Does everything line up, or is the belt running at an angle?

No idea what you are running or how it is breaking, but the front wheel drive pump is different to a RWD one.

 

FWD isn't designed to have a fan bolted to it, plus the nose of the FWD pump is from memory longer. So, depending on what combination of pumps and pulleys you are running in rear drive configuration, possibly the belt deflection is loading the pump excessively? Does everything line up, or is the belt running at an angle?

 

 

What he said except the fwd pump is flusher than a rwd one, and I believe the belt runs in the same location.

 

The rwd pump is longer to get the blades of the clutch fan closer to the radiator core.

Actually rediscovered this the other day

 

http://www.rollaclub.com/board/index.php?showtopic=19896

 

May be helpful.

twin thermos no clutch fan...

also if fwd pump the engine deflection under accelleration, decelleration may be putting stress on the pump depending how you re-routed the lower hose back to the radiator...