TM 10-3930-659-34 4-19.  ENGINE OIL PUMP REPLACEMENT (Con’t). 4. Install new preformed packing (7) on engine (6). 5. Position engine oil pump (2) and outlet tube (1) on engine (6). 6. Install drive gear (4) on drive shaft spur gear (3) with new jamnut (5).  Torque jamnut to 55 lb.-ft.  (75 N.m).  Stake jamnut in three places. FOLLOW-ON TASKS: •     Install engine oil pump intake tube (see paragraph 4-18). TA708116 4-80