TM 10-3930-659-34 4-24.  FUEL INJECTION PUMP REPLACEMENT (Con’t). a.  SETTING TO TOP DEAD CENTER (TDC) 1. Remove plugs (2 and 3) from engine (1). 2. Install flywheel turning tool (4) on engine (1). 3. Turn flywheel turning tool (4) clockwise until tim- ing pin (5) can be installed on engine (1) and en- gages flywheel. 4. Remove two screws (11), cover (10), and gasket (9) from fuel injection pump (6).  Discard gasket. 5. Note timing marks (7 and 8). (a) If timing mark (7) is visible, No. 1 piston is at top dead center (TDC) on the compression stroke. (b) If timing mark (7) is not visible, perform step 6. TA708170 4-94