Quantcast d. Injection Pump Settings (Following Pump Repair) - TM-9-2815-237-34_156

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TM 9-2815-237-34 2-35.  (6.5L)  FUEL  INJECTION  PUMP  (DB2831-5149)  CALIBRATION  (Cont’d) (b)  Energize  electric  shutoff  solenoid  and  check  delivery  against  the  chart  below. THROTTLE MM 3 / CAM   MOVEMENT PRESSURE RPM POSITION STROKE* (DEGREES) TRANSFER  PUMP HOUSING 150 Low  idle 27 min. 0-12  psi  (0-83  kPa) 400 WOT 43 min. 400 WOT** 4 max. 700 Low  idle 12-16*** 0.5 min. 8-12  psi  (55-83  kPa) 700 Low  idle **** 0-1  psi  (0-7  kPa)** 2000 WOT 56 max. 3200 ADJ 21.5-23.5 3.75-16.25 3400 WOT 48-53 3.00-5.00 3500 WOT 43 min. 3650 WOT 30 min. 3900 WOT 15  max. * Maximum cylinder variation should be ± 6 mm3 from the average flow of all cylinders. **  With  electric  shut-off  solenoid  de-energized. ***  Reset  using  low  idle  screw. ****  Minimum  of  1.25  degrees  more  than  reading. 10.  Disconnect  pump  and  mount  in  holding  fixture. 11. Using air timing gauge, check pump timing. Set to -2.0 to +0.0 degrees. 12. Total throttle travel from low idle to wide-open throttle should be 75-84 degrees. 13.  Refer  to  para.  2-7,  Engine  Troubleshooting,  to  diagnose  any  malfunctions  encountered  during checkout. d. Injection Pump Settings (Following Pump Repair) 1. Roller-to-roller dimension must be 1.968 ± .001 in. (49.99 ± .025 mm). With oversize cam ring installed,  roller-to-roller  dimension  will  be  1.976  ±  .001  in.  (50.19  ±  .025  mm).  Maximum  eccentricity allowed  is  0.008  in.  (0.20  mm)  TIR. 2.  Linkage  gap  must  be  0.130-0.175  in.  (3.30-4.45  mm). (a)  Mount  the  pump  horizontally  in  holding  fixture  and  remove  governor  cover. (b) Hold the throttle lever in the wide-open throttle (WOT) position. Rotate pump drive shaft counterclockwise  until  a  click  is  heard  as  the  rounded  contact  points  on  the  governor  arm engauge  the  slots  in  the  thrust  sleeve.  Continue  to  rotate  the  drive  shaft  until  the  gap  between the governor arm and pump housing is minimal. (c) Using linkage gap tool, check the clearance limits between the rear of the shutoff shaft and the  vertical  tab  on  the  linkage  hook. (d)  If  adjustment  is  required,  loosen  governor  linkage  hook  adjustment  screw  and  extend  the linkage  hook  to  its  maximum  open  length  (throttle  lever  must  be  in  WOT). (e) Insert the appropriate step of the linkage gap tool between the vertical hook tab and the throttle  shaft,  with  the  step  facing  the  shaft.  The  tool  must  be  held  vertically  and  parallel to  the  linkage  hook  tab. (f) With the linkage hook pin seated firmly in the governor arm slot and the governor arm in the  minimal  gap  position  (step  2.(b)),  shorten  the  linkage  hook  assembly  until  the  face  of  the vertical  tab  is  flush  against  the  tool.  Tighten  adjusting  screw  to  12-15  lb-in.  (1  N•m). (g)  Recheck  linkage  gap  and  adjust  if  necessary. 2-138


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