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TM 5-4320-306-24
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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