Hey, '91 E30 318is m42.
Have searched but couldn't get the picture that was posted to come up, I am a little unsure why the head has to come off. Is it because of the crank shaft not letting the oil pump cover housing push up against the bottom of the head enough to make the seal. I won't have any problem mechanically, but time money. Though it's not my car, I definitely don't like comebacks.
Perhaps an update on the sealing wihtout head removal. However there is a very little amount of pitting on the inner cover. The TSB says jb weld or cold compound, anyone with experience?
Thanks alot, Roan.