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 ADJUSTMENT (Continued) WARNING Hold wrench securely when turning camshaft as spring pressure from the valve springs can throw the wrench from your hand and cause an injury. CAUTION Move the camshaft slowly and do not force the camshaft or damage to engine may occur. It may be necessary to turn camshaft counterclockwise a small amount before valve closing point can be determined by turning the camshaft clockwise. 5. Position camshaft assembly (23). a. Using 5/8-inch wrench, affixed to camshaft beveled gear (24), slowly turn camshaft assembly (23) clockwise, as viewed from flywheel end, until number 6R intake valve is just closed. 12 11 23,24 b. Closing point is determined by placing a finger on the valve adjusting screw pad (12) of the intake valve adjusting screw (11) and trying to rotate it while the camshaft is being rotated. c. The valve is closed the instant the valve adjusting screw pad (12) is free to move. 6. As a second check, the scribed tooth (A) on camshaft beveled gear (24) should point down toward the crankshaft. WP 0035 00-8 24 A