One more thing to add. If the distributor drives the oil pump like it typically does on V8's (forgive my ignorance on inline 6's, I've never taken one apart), then when you pull it, take note of the slot in the bottom of the distributor shaft to see how it's pointing, or look down in the hole and see how it's pointing on the oil pump drive. If you don't have it pointing the same way when you go back in, it won't want to line up that alignment mark.
So if the inline sixes don't drive their oil pumps that way, then set me straight. But that's what you need to watch out for on V8's anyway.
