INTAKE AND EXHAUST VALVE TIMING PROCEDURE
TIMING ADJUSTMENT (Continued)
Hold wrench securely when turning camshaft as spring pressure from
the valve springs can throw the wrench from your hand and cause an
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.
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