Oil pump... riddle me this

[Beejis60]

So I have a decimated oil pump. It looks like the gerotor decided to move forward and backward into the front cover and body and chew them apart. I thought the crank endplay might have been the problem, but it's well within spec. I'm extremely certian no foreign objects got into the oil/oil pump. Anyone have any thoughts?

[jr_ss]

Have any pictures? Is the wear consistent front to back or is it tight to the shaft on one side and out wide on the other?

[Beejis60]

Ya, the wear is consistent. So it's not like it's too snug on the snout or something and it's pushed up against the cover when putting installing the pump. No pictures.