I just received a new flange pump to keep as a spare and noticed that the oil seal seems to be internal to the pump body instead of just under the snap ring on the flange side of the pump (as in the old pumps and repair procedures) . The old rebuild procedure (figure 3) matches the new procedure (figure 3) but the new procedure has figures 12-14 showing the oil seal moving into the pump thus exposing the bearings to an oil bath I guess. Is this correct?