Remove the timing gearcase cover. (See Timing Gearcase Cover Removal And Installation on Page 70-100-7.)
Remove the crankshaft gear.
Remove the nut from the oil pump shaft. Use a puller to remove the oil pump gear (Item 1) [Figure 70-100-47].
Installation: Tighten the nut on the oil pump shaft to 46-54 ft.-lbs. (62-73 Nm) torque.
Remove the oil pump mounting bolts. Remove the oil pump (Item 2) [Figure 70-100-47].
Installation: Tighten the oil pump mounting bolts to 60-72 in.-lbs. (6,9-8,1 Nm) torque.
