TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 INTAKE AND EXHAUST VALVE TIMING PROCEDURE 0035 00 TIMING CHECK (Continued) 3. Checking procedure. a. Check valve timing by slowly rotating flywheel counterclockwise, as viewed from flywheel end, until number 6R intake valve is just closed. b. Closing point is determined by trying to rotate the valve adjusting screw pad (12) on the intake valve adjusting screw (11) while the flywheel is being rotated. c. Place a finger through the adjustment opening and rest it on the pad (12) to check for the first instant of movement. d. The valve is closed the instant the valve adjusting screw pad (12) is free to move. 11 12 4. Check valve timing. a. Observe position of flywheel timing mark "6R INT CLOSE .100 CLR" (A). B A b. If timing mark (A) is aligned within 1/8 inch of engine timing mark (B), valve timing is correct. Go to step 4 of Installation. c. If timing marks (A and B) are not aligned within 1/8 inch, the timing must be adjusted. Go to Timing Adjustment. WP 0035 00-5