[Jon Miller]

I think I figured it out......I dumped 2 ounced of WD40 in each cylinder in an effort to get the rings unstuck(See "Stuck Rings" Thread). I let it sit for a few hours, then ran the motor. That's when the pump broke. What I'm thinking is that a good portion of that 16 ounces of WD40 made it's way into the crank case, and got sucked into the pump in one big bubble. Since it's 90% solvent it removed the lube from the pump and allowed it to destroy itself.....Since the motor did not start making terrible noise, I don't think any other damage was done.

Thanks,
Jon