Hi bud,,,, I know this is an old tread, and im hoping your still on forums,,, did you ever find a solution to this, as ive same problem,, ive even taken the oil drain bolt out, and tapped a stubby in the casing hole,,, in hopes this would allow oil to level out in both sides,,, engine has been run a few times with over 100 plus miles, but it still has not leveled,,, ive looked at my spare engine casings, and there is nothing to stop the oil,, yet it does,,, its got my head battered.. thanks andy reay,, im on all facebook tzr groups if anyone wants to find me to help/advice,,,,