TM 10-3930-671-24 Under normal operation or during routine maintenance it will probably not be necessary to time the injection pump. However,    i    the    pump    is    removed    or    a    new    pump installed,   it   must   be   timed   according   to   the   following procedures. Reinstalling & Timing the Original Fuel Injection Pump WARNING Bodily   Injury   may   result   during   the timing  operation  of  the  fuel  injection pump n the engine Is running.  Do not attempt  to  adjust  the  timing  without the   pump   mounting   bolts   securely torqued. 1. Install  new  gasket  on  the  pump  face  and  install pump on the pump adapter plate. 2. Install adapter plate mounting bolts finger tight. 3. Install the alignment dowel through gear into the pump drive shaft. NOTE The  remaining  hole  in  the  pump  gear  is  for  timing  the pump to the engine. 4. Mount  the  drive  gear  to  the  pump  drive  shaft using  three  (3)  screws  and  washers.    Tighten screws to 20-25 lb ft [27-34 N•m] torque. 5. Install  new  0-ring  on  hub  of  the  pump  adapter plate. 6. Turn  engine  crankshaft  until  #1  cylinder  is  at TDC  on  compression  stroke  with  beveled  gear tooth  on  the  driver  gear  (mounted  behind  cam gear)  approximately  centered  in  hole  in  rear  of gear case. 7. Remove screw plug in front cover of gear case. This is for the purpose of installing a timing pin. Use a 15/64" drill as a timing pin. 8. Install  fuel  injection  pump  and  adapter.    Turn pump and pump gear until pump can be installed with the timing pin (15/64" drill) passing through the hole in the pump gear. 9. Rotate  the  pump  adapter  plate  and  align  scribe marks. 10. Install  and  tighten  adapter  mounting  bolts  and screws. 11. Remove the timing pin (15/64" drill) and replace the screw plug and washer. 12. Rotate  the  injection  pump  to  align  the  scribe mark   on   the   pump   flange   and   on   the   pump adapter plate. 13. Tighten pump mounting bolts. 14. Attach   high-and   low-pressure   fuel   lines   and hoses. 15. Attach wire to cut-off solenoid. 16. Connect throttle control linkage. 17. Check Operation NOTE It   is   strongly   recommended   that   a diesel  Injection  timing  light  be  used to check Injection timing. a) Start engine. b) Run engine at 1600 rpm idle. c) Check pump timing.  Dynamic timing should be 13°-15° BTDC @ 1600 rpm, no-load. F-207