TM   5-3895-376-14&P 5-14.  GEAR  COVER  MAINTENANCE  INSTRUCTIONS  -  Continued 5. Measure  inside  diameter  of  the  camshaft  bearing 6. bore with vernier caliper. Replace gear cover if bore  diameter  exceeds  2.4405  in.  (61.991  mm). R E P A I R 1. Remove defective roll pins (15) by pulling out with a plier or vice grip. Install replacement roll pin,  tapping  gently  with  hammer. 2. Replace  a  worn  sleeve  bushing  (16)  as  follows: a. Using  an  arbor  press  and  a  18  mm  diameter pressing rod with a 16 mm pilot, press the sleeve bushing (16) through to the inside of the  gear  cover  (13). 7. 8. b. Using the same pressing rod and arbor press install  replacement  bushing  (16)  into  gear cover (13). Seat the bushing flush with the outside  surface  of  the  gear  cover. I N S T A L L A T I O N NOTE The installation process depends on the components/parts   that   were   removed   from the gear cover. The procedure below pro- vides for complete installation to replace the gear cover itself. Perform only those steps necessary. 1. If  removed,  install  the  primer  assembly  (Para.  5- 6). 2. If  removed,  install  the  camshaft  bearing  and  cam- shaft  assembly  (Para.  5-15). 9. 3. If  removed,  install  the  governor  control  lever  and shaft  mechanism  (Para.  5-16). 4. If  removed,  install  the  injector  fuel  pump  (Para. 5-5). 10. 5. Turn the flywheel to bring the piston to top dead center (TDC) by aligning the flywheel timing mark with the mark stamped on the engine housing at the  3  o’clock  position Rotate the camshaft gear observing for the timing mark  to  appear  and  align  with  mark  in  the  open- ing  for  the  compression  release  on  top  of  gear cover  (13). Install new gasket (14) to the mounting face of the  gear  cover  (13). Lubricate the camshaft gear and exposed shaft tip with engine lubricating oil, and carefully install the gear cover (13) onto the engine housing. Care must be taken to ensure that the tip of the camshaft engages bore of engine housing, while engaging camshaft gear teeth with teeth of crank- shaft gear without changing the alignment of tim- ing  marks. NOTE If the position of the governor should pre- vent seating of the camshaft gear to the crankshaft gear, turn the flywheel until its timing  mark  aligns  with  threaded  hole,  ap- proximately 1 o’clock on the engine hous- ing.  Turn  the  camshaft  gear  to  offset  the timing mark exactly 3 teeth to the left of the  mark  on  edge  of  compression  release opening. Repeat step 8, maintaining this alignment.  Rotate  flywheel  to  TDC  and check  camshaft  timing  mark  for  alignment with mark in the opening for the compres- sion release on top of gear cover (13). NOTE If after installation of the gear cover the tim- ing mark of the flywheel is within ±0.0787 in.  (±2  mm)  of  the  mark  on  engine  hous- ing,  the  timing  is  correct. After aligning roll pins (15) with respective bores of the engine housing, gently tap around front edge of the gear cover with plastic hammer to seat gear cover (13) to the engine housing. Secure  gear  cover  with  six  capscrews  (11 and 12), installing the three longer capscrews into the top two and bottom left holes. Tighten capscrews in a cross pattern, to 22 - 25 ft-lbs (29 - 34 Nm) with torque wrench fitted with 6 mm hex key driver 5-39