Originally Posted by richappy
If you have the older style vertical motor with impeller and it will not come off, here is a procedure for this.
First thing, trying to torque the 1/4 inch screw off with a nut driver and vice grips is a bad idea, might just bust the screw off in the motor shaft.
Take a sharp wood chisel and gently pound down on the top edge of the impeller close to the screw. Crack it away from the shaft, then put penetrating oil on the screw and take it off. Works every time, just be careful not to pound down too hard, might damage the motor.
Hi Richappy: Can you be more specific about where to pound on the impeller with the chisel? Also, once you've taken off the impeller, how do you hold the motor shaft still so you can unscrew the bolt? I've attached a pic just to make sure I'm talking about the right thing.