TM 10-3930-664-24 3-18.  ENGINE OIL PUMP REPLACEMENT This task covers: Removal, Cleaning, Inspection, and Installation INITIAL SETUP: Tools and Test Equipment: Equipment Condition: General Mechanics Tool Kit (1, App.  E) Gear cover removed (para.  3-12) Torque Wrench (32, App.  E) Materials / Parts: Lubricating Oil (14, App.  C) A.  REMOVAL 1. Remove  engine  oil  pump  (1)  by  removing  bolts (2).  Remove back plate (3). 2. Mark  "TOP"  on  geroter  planetary  (4).    Remove planetary from pump housing (5). B.  CLEANING Clean engine oil pump  in  accordance  with  paragraph  1- 24. C.  INSPECTION 1. Conduct  general  inspection  of  engine  oil  pump and    related    components    in    accordance    with paragraph 1-24. 2. Inspect  geroter  planetary  and  pump  housing  for excessive wear or obvious damage. D.  INSTALLATION 1. Install  geroter  planetary  (4)  onto  pump  housing (5).  Ensure that "TCP" mark faces up. 3-58