Why did this pump break??

[renoman69]

Went to winterize my fiver last weekend and when I tried to pump the antifreeze through the system I got no action. Took the pump out and took it apart to find this.






The pump worked fine about 3 weeks earlier and we had no frost yet. It is broken on the "dry" side of the pump head too so it can't have been from freezing. Any thoughts?

[Old-Biscuit]

Looks like the drive unit failed from fatigue.
Do you routinely use the pump or hook ups?

Probably cheaper to replace with an upgraded pump vs complete rebuild.

[westend]

No screws loose to cant the bits together on angle----I'd just say thank you Shurflo and get past it.