D-19 water pump replacement ?????

[Claude J]

I got a rebuilt water pump and have not torn mine apart yet but I would like to understand how it goes back together before I tear the old one off. Your help will be appreciated. Question # 1. What holds the hub pulley to the bearing and shaft assembly? Is it a snap ring and if so how does that make the saft and implerrer turn? Question #2 How does the steel tube between the water pump and water manifold seal so it does not leak. By looking at the rebuilt I can not answer these question. Help??/

 

[Jerry Coulter]

Service manual simply says "Remove fan blade assembly and pulley from pulley hub. Remove by-pass tube from water pump and thermostat housing. Remove water pump from cylinder block." For reassembly, nothing is said about the by-pass tube. Possibly the 2 nuts are flare type which tightens onto the tube.

 

[Claude J]

Thanks Jerry, I read the manual and looked at the digarams and don't see how the pulley drives the water shaft.

 

[David(MN)]

When you remove the 4 bolts holding the fan on, the water pump pully will slide off. Once you have the pully off you will see what makes the shaft turn. When the 4 fan bolts are out nothing else holds the pully on.

 

[Claude J]

I have it back together. Here is the deal the water pump has the pulley hub pressed on that is how it is fastened. The water line outlet had been modified from a 3/4" standard compresson fitting to a 3/4" std water pipe with a a 1" raditor hose and 2 clamps. I did use gasket sealer and it works great . Thanks for the help.