[EZDriver]

Yes, there would be plenty of oil for the front bearing. But, that lowering of oil in that chamber would reduce the amount of oil flowing over the dam to the second and third chambers, wouldn't it.

You mentioned something that may explain things. You said rough broken out hole. Maybe this is the was it was made from the factory. It is quite rough and appears to have some small drill hole along the bottom edge. It would be nice to see what another one looks like.

My concern is starvation of oil at the center and aft main bearings.