Check out My old water pump

Gryzynx said
Probably a combination of things. Casting flaw, probably. Maybe also too much belt tension? Color of the break looks odd, almost yellow? Maybe it's just my monitor?

It could have been cause from a loose belt as well. a loose belt could cause a whipping action, that could do the same thing.

But in the end i shouldn't have done that. Has to be a bad pump. maybe it cracked when they installed the bearing and cause it to brake.:dontknow: