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Figure 5-7.  Top Dead Center Position
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TM-10-4320-311-14 Pumping Assembly Flammable Liquid Bulk Transfer 60 GPM Diesel-Engine Driven Model M2D68 Manual
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Figure 5-8.  Fuel Injection Volume Limitation Adjustment
TM 10-4320-311-14 c. Position the fuel injection nozzle so the discharge orifice is visible d. Set decompression lever to downward position. e. Rotate  flywheel  clockwise  and  confirm  that  fuel  injection  pump  is  producing  adequate  pressure  to  crack  the injection nozzle. With  the  fuel  tank,  fuel  line,  and  overflow  hose  Installed,  the  injection  pressure  must  be  tested  for  proper  pressure. (Refer to para 4-25.) f. Set speed control lever handle to run position. g. Set decompression lever to downward position. h. Rotate flywheel clockwise until the decompression lever releases to upward position i. Continue  to  slowly  rotate  the  flywheel  until  the  T  position  mark  (1)  aligns  with  the  alignment  mark  (2)  on  the cylinder block. j. Set the decompression lever to start (downward) position. k. Turn the flywheel first clockwise, then counterclockwise about 30 degrees from the T mark to make sure fuel is discharged from the fuel injection pump outlet.  Repeat steps f through i if necessary to inject fuel I. Turn the flywheel clockwise slowly until fuel just begins to flow from the pump outlet.  Note the timing position on the flywheel when fuel starts to flow. m. Repeat 3 or 4 times to make sure the reading is correct. n. The correct reading should be at 14 degrees, plus or minus 1 degree. o. 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. (2) Remove fuel injection pump. 5-18

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