1970 F-250 V8 390.

I noticed that the lower water pump gasket from the pump to the engine is leaking. Can I just replace that one? Or do I need to replace the whole pump? Does anyone know?

 

ZYes, you can replace the gaskets,but you have to pull the pump to do it. Make sure that it is not the pump seals that is leaking.

 

It appears to be, from what I can see, from where a metal flange pipe of the pump makes contact with the block. I am assuming that is the pump to block gasket. Where are the pump seals located?

 

Okay, I got a better look under there, its hard to actually! It is leaking from the weeping hole under the pump shaft. I have just finished replacing the pump last night. Man, I hope I got enough gasket sealant without over doing it on the block gaskets! We shall see today when I run it and check for leaks or loose parts!

 

If it leaks a little when first installed, before you rip it off and redo the gaskets, just give those four bolts a little tweak. Sometimes that's enough.
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