A bud of mine has a 22RE from an 84 Celica in a 84 4Runner. He has an oil leak which looks like its coming from the front crank seal. He has already replaced the seal and the leak slowed for a few days and now is pretty steady again. The only suggestions we have gotten is that the bad seal wore a groove in the crank. Does anyone have anything else we should check or a suggestion on what to do from here???