Oil round dizzy? Sure it's Just not all the oil you scrubbed of your engine with oven cleaner building up there?

Sounds like pressure build up but when you cleaned your engine, you didn't get water or anything into oil did you?

I'm just remembering that day my Su needle stuck open filling cal 3 with so much petrol, it seeped past rings and filled up sump too. Started car and oil overflowed everywhere with petrol mix