G'day Phil,
Yes, off-set the seal by around 3/8", and make sure that you put some sealant under the cap so the oil doesn't leak out past the side of the seal and the sump gasket.
Now, the lip of the seal must be facing towards the front of the engine. You have to imagine the oil pressure trying to push out under the seal lip. If the lip is facing backwards, the oil will lift the lip up. The other way, any pressure till tighten up the seal.
Now, the seal isn't designed to actually hold oil pressure as such, just stop the splashing oil from getting out. There is a drain slot in the cap to allow the squeezed oil from the bearing to simply drop back into the sump.
Bruce.
