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TM 5-4320-305-24
3-19.
REPLACE CYLINDER HEAD ASSEMBLY, ROCKER ARMS, PUSHRODS, AND TAPPETS (Continued)
10
Install assembled rocker bracket and rocker arms (1)
and nuts (2). Tighten nuts to 20.65 ft-lb (28 N.m).
VALVE CLEARANCE ADJUSTMENT:
NOTE
Adjust valve clearance only when engine is cold.
1
Rotate crankshaft by rotating
flywheel or crankshaft V-belt
pulley (1) clockwise until
valve stems and rocker arms
overlap. The exhaust valve
(2) should be closing and its
valve stem rising. The inlet
valve (3) should be opening
and its valve stem going
down. Both valve stems (2
and 3) should be at the same
height. Rotate crankshaft
pulley (1) another complete
revolution, or 360 degrees
of travel of the flywheel or
pulley. The piston should be
at the top of its compression
stroke
and
the
valve
clearance can be checked
and adjusted.
3-110
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