1990 Corolla - why does it keep blowing oil seal out?

Front main engine? Probably worn out main crank bearing. Just a tiny wobble on that bearing will blow seal

1.6L- 4A FE Trying to find solution.....

Whoops. My mistake. The main is back further that I thought. So Best guess is opening for seal in timing cover may not be perfectly round, may need a timing cover. Click for full screen

Thank you. I was leaning toward oil pump. Never ran into this problem before.

This is just a guess, but all I can think of

Tell me why you say oil pump. I am not a know-it-all. Might learn something

It's a start, thanks so much!

Best of Luck tuari. Let us know, eh

Groove in the damper that the seal runs on or excessive crankcase pressure can cause the front seal to fail.

My Man. Bob. Makes perfect sense. Stuck PCV and blow-by from a 1990 with worn rings = pressure in crankcase

Seal could be installed backwards also.