stuck water pump impeller shaft

[mad mechanic]

water pump impeller shaft has "welded" itself to crank and i cannot replace my water pump impeller I find it hard to believe that such an inexpensive part is going to render my motor useless! HELP!!!!!

 

[12Footer]

Re: stuck water pump impeller shaft

Well there is a will, there is a way..What year/make/Hp engine?

 

[steverino]

Re: stuck water pump impeller shaft

Without seeing your motor, I'm only guessing, however, there are several tricks that mechanics use.<br />1. Patience!!! Haste makes waste.<br />2. Penetrating oil. requires time so that it soaks in. Kano Aerokroil aerosol can being my brand of choice. (615) 833-4101 order direct over the phone.<br />3. Impact wrench whenever possible. This prevents bolts from twisting off.<br />4. Air-powered chisel.<br />5. Heat up the part with a propane or acetylene torch and then put a piece of parafin (used for canning) against the joint, melting the parafin and allowing the fumes to enter the joint.<br />6. Last but far from least. the blue tipped wrench, AKA the acetylene torch. This tool requires common sense and care, as it can do more damege than good when used improperly. Get the part heated up till it's orange and then quickly use an impact wrench, impact chisel or hammer and chisel. Hope this helps.

 

[almost retired again]

Re: stuck water pump impeller shaft

Hello Mad, I was having the same problem once and an old told me of a trick that he used. Cross the plug wires, crank it over and get to backfire this knocked it loose for me, but I've never had to try it again.<br />What the heck it's worth a try.

 

[Franki]

Re: stuck water pump impeller shaft

are you saying you can't get the leg off because the shaft is stuck in the crank?<br /><br />rig up a slide hammer..<br /><br />I have used a crowbar and a 10kg weight from a barbell for stuff like this..<br /><br />the crowbar has a thicker end with a small flat blade at one end.. makes a good stopper for the weight...<br /><br />find a way to attach the other end of the crowbar to the leg of the shaft.. (the other end of my crowbar has a small claw like a claw hammer, so it was each for me.) or the bottom of the leg...<br /><br />don't hammer it to hard or to much, you may damage a crank seal or something, but one good wack should get it..<br /><br />This list is just full of mcgaviers isn't it? <br /><br />rgds<br /><br />Frank