TM 5-4320-302-146-4. ADJUSTMENT OF FUEL INJECTION TIMING (CONT)Location/ItemActionRemarksBoth valve stems should be at the same height.Rotate crankshaft another one-half revolution or180 degrees of travel of the flywheel or pulley.2.AdjustingMount on cylin-device No.der head assembly.100640Turn pressure screwuntil rocker armhas been pusheddown 0.197 to0.236 inch (5.0 to6.0 mm).3.Dial gageTurn adjusting screw until gage pointer reads approxi-No. 100400mately midscale. Mount on adjusting device.4.Flywheel orRotate crankshaft as in step 1. Rotate slowly untilV-belt pulleypiston starts to push up valve. Gage pointer will moveup scale clockwise. Continue to rotate crankshaft un-til gage pointer stops moving up scale/clockwise andjust starts to change direction to down scale/counter-clockwise. Mark this point on gage as the 0 point.6-7
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