TM 5-3895-383-24 NOTE: After  timing  fixture  (2)  has  been  installed  on  the inlet   manifold,   do   not   rotate   the   engine.      The timing fixture may be damaged. 7. Remove bolt (B) from timing fixture (2).  While holding up collet sleeve (A), gently put 6V6106 Dial Indicator (1) and  4C4716  Timing  Fixture  (2)  in  position  on  the  inlet manifold over the injector to be checked. When  properly  positioned,  locating  pin  (C)  and  bolt  (B)  on timing fixture (2) will engage holes in top face of inlet manifold (8).  Tighten bolt (B) to secure timing fixture (2) firmly to inlet manifold (8). Slowly lower collet sleeve (A) until the long pin of timing fixture (2) contacts shoulder (7) of the injector. NOTE: The sliding locating pin (C) and two hole positions for   bolt   (B)   are   provided   in   the   timing   fixture because   of   a   different   valve   cover   bolt   hole position on the rear cylinder. 8. Dial indicator pointers must indicate 0.00 within ± 0.20 mm.    Each  injector  must  be  checked  separately,  and adjusted if necessary. 9. If the dial indicator pointers indicate 0.00 ± 0.20 mm, no adjustment is necessary, proceed to step 16. 10. If the dial indicator pointers do not indicate 0.00 within ± 0.20 mm, do Steps 11 and 12. NOTE: The  ±  0.20  mm  is  a  checking  tolerance  only.    If adjustment  is  necessary,  adjust  each  injector  to the specified Fuel Timing Dimension. 11. Loosen the locknut on push rod adjustment screw (6) for the injector to be adjusted. 12. Turn  the  adjustment  screw  (6)  until  the  dial  indicator reads   0.00.      Tighten   the   locknut   on   the   adjustment screw (6) to a torque of 25 ± 7 Nm  (18  ±  5  lb-ft)  and check     adjustment     again.          If     necessary,     do     this procedure again until the adjustment is correct. NOTE: After  timing  fixture  (2)  has  been  installed  on  the inlet   manifold,   do   not   rotate   the   engine.      The timing fixture may be damaged. 13. The Fuel Timing Dimension can be checked or adjusted on  half  of  the  cylinders  with  the  timing  bolt  installed. Then, the timing bolt must be removed, and the flywheel rotated counterclockwise 360 degrees (1 revolution) and the   timing   bolt   reinstalled   to   check   the   Fuel   Timing Dimension  on  the  remaining  cylinders.    Refer  to  chart Crankshaft Positions For Fuel Timing. 14. Remove the timing bolt from the flywheel when the Fuel Timing Check is completed. Procedure B (1U8869 Digital Dial Indicator) Calibrate Injector (Fuel) Timing Fixture (2) 4C4716 Timing Fixture.  (3) 1U8702 Injector Timing Block. (4)   1U6678   Calibration   Fixture.      (9)   1U8869   Digital   Dial Indicator.  (A) Collet sleeve.  (B) Bolt.  (C) Locating pin. Before a check or an adjustment of the Fuel Timing Dimension can be made, the tooling must be calibrated as follows: 1. Program  the  1U8869  Digital  Dial  Indicator  to  read  the actual timing dimension.  Since the gauge block in the timing and fuel setting group is 62.00 mm, the digital dial indicator is to be programmed for 62.00 mm. a. Turn the indicator ON by pushing the "on/off" button. b. Push the "in/mm" button so the display shows mm. c. A  negative  sign  (-)  should  be  in  the  display  window under REV.  If that space is blank, push the "+" button so the display shows (-).  When this is done, plunger movement into the indicator will show on the display as negative movement and plunger movement out of the indicator as positive movement. d. Push and hold the "preset" button down until there is a flashing (P) in the upper right corner of the display, and then release the button. e. Push and hold the "preset" button down until the (P) stops flashing, and a flashing indicator bar is seen in the lower left corner of the display, and then release. Momentarily pushing the "preset" button will cause a minus sign to appear or disappear above the flashing indicator.      Use   the   "preset"   button   to   make   this position blank. 6-73