Do you have a blow torch? Heat it up good and cook it. There is an o-ring on the pump shaft and the shaft on the engine. The one on the pump must have fused the parts together. Give it a meltdown. When putting it back together, be sure to replace the o-rings. I also greased up the splines on both shafts so that it wouldn't make any chatter noise (just in case it might).

 

well i dont have a blow torch but i might be able to figure something out, right now thats the only little thing keeping me from finishing my car...

 

Toss it on the BBQ grill.

 

i was gonna use a can of hairspray and a lighter lol

 

new one is 40 bucks.

 

wow 40 bucks for that little part. from where i didnt think autozone sold em???

 

It is possible that a little water got in the coupler and allowed some rust to form and bond it to the pump shaft. If that is the case, then concentrated heat is your best bet for breaking it loose.

You can get a small propane torch and tank at any hardware store. Look in the plumbing aisle or ask for the kit to solder copper pipes with. That is really all you will need.

 

i dont think they are made anymore, thats why they cost so much.
10128334 - Water Pump Drive Shaft Coupling
$40.50 Sale

RMS Auto Parts

i think i have a used one around here but u should be able to get that one off with some persuasion. heat should work but if not and u have a vice put the coupler in the vice and put a screw driver inside the coupler and drive the shaft out.

 

i finally got it off with 2 screwdrivers and a pair of vise grips and ive got the waterpump on and the harmonic balancer on im gonna finish up here in a minute its hot as hell outside so im taking a quick break...should be done ill let you know how it turns out.

 

dont forget to bleed the air out of the cooling system.