ARMY TM 9-2815-257-24 AIR FORCE TO 38G1-128-2 MARINE CORPS TM 10155A/2815-24/3 4-16 4-10.  OIL PUMP MAINTENANCE  -  cont. D.    INSTALLATION. 1. Insert oil pump (9, Figure 4-10) into crankcase cover (1) and install parallel pin (7).  Coat oil pump rotor with oil, and install outer rotor (8). 2. Coat new O-ring (6) with oil and install into crankcase cover (1).  Install oil pump cover (4) using three screws (5). 3. Install new governor assembly (11) and pin (10). 4. Apply grease to lips of crankshaft oil seal (installed in crankcase cover (1)). 5. Apply oil to crankshaft and camshaft.  Make sure that oil pump drive gears are properly engaged. 6. Mate cover gasket (3) to cylinder block. 7. Mate crankcase cover (1) to cylinder block and secure using fifteen screws (2).  Tighten screws in criss- cross sequence as shown in Figure 4-5.  Torque all screws to 14.5 to 16.6 ft-lbs. (200 to 230 kg-cm). 8. Service engine oil (Para. 3-6). Figure 4-10.  Oil Pump Installation