If you're looking for
oil in the heads, it depends on if there's an
oil restrictor installed; with an
oil restrictor, the heads won't get "flooded" with oil, just a small flow dripping off the stamped steel parts. You should feel a definite drag on the drill motor when turning the oil pump shaft counterclockwise. FYI, if you have a spare distributor, strip it down to just the main shaft and use that to turn the oil pump shaft.
Dan