[jack backer]

There are a few reasons for leaks in that area shown in the picture, one of the leaks was designed by engineering. The transmission fork shafts weren’t sealed, allowing seepage to run down the clutch housing and lubricate the wishbone ball.

The increased oil clearance caused by bearing wear will over come the ability of the bearing drain, although I have no proof it was intentionally designed in to indicate bearing wear. I do know a correctly assembled and maintained engine won’t leak from the rear of the rear main bearing.