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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.
12
11
4. Check valve timing.
a. Observe position of flywheel timing
mark "6R INT CLOSE .100 CLR" (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
B
Installation.
c. If timing marks (A and B) are not aligned
within 1/8 inch, the timing must be
A
adjusted. Go to Timing Adjustment.
WP 0035 00-5
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