TM 10-4320-325-14
NOTE
ON THE FLYWHEEL, EACH LINE REPRESENTS 5 DEGREES
j. The correct reading should be at 14 degrees, plus or minus 1 degree.
k. If the injection timing is incorrect, refer to ADJUSTMENT procedure to correct.
ADJUSTMENT:
a. Fuel Injection Timing Adjustment.
NOTE
Perform the following steps to adjust fuel Injection timing after the timing has been checked several times
and Incorrect timing Is indicated.
(1) The fuel injection timing is adjusted by adding or removing shims (7) (refer to Figure 5-5) to speed up or
slow down the actual fuel Injection
NOTE
Each 0.0039 inch (0.01 mm) added slows timing by one degree. Each 0.0039 inch (0.01 mm) removed
speeds up timing by one degree. Shims are available in 0.0078 inch (0.2 mm) or 0.0117 inch (0.3 mm)
sizes. Changes in 0.0039 inch (1 mm) units can be affected by using combinations of 0.0078 inch (2 mm)
and 0.0117 inch (0.3 mm) shims.
