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TM 5-4320-306-24
3-6. REPLACEMENT ENGINE ASSEMBLY (Continued)
2.
Rotate crankshaft by rotating crankshaft V-belt pulley (1) clockwise until valves are in overlap position on cylinder
number one. 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. Rotate crankshaft another one-half revolution or 180 degrees of clockwise rotation of the
V-belt pulley.
3.
Mount adjusting device No.100640 (1) on cylinder
head assembly (2). Locate pressure screw (3) over
exhaust valve, and turn pressure screw
counterclockwise until contacting valve end of rocker
arm. Continue rotating six more revolutions to com-
press valve spring (4) the necessary 5.0 mm to 6.0
mm.
3-26 Change 1
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