TM-5-4310-389-14
f.
Check the valve clearances of the remaining cylinder and readjust if necessary.
NOTE
Whenever checking valve clearance, be sure to also check the adjustment of thrust screw located on
the rocker arm and designed for determining the clearance of the decompression device.
g.
With valves closed, i.e., piston in compression TDC, press thrust pad (2) by hand against the valve stem end
(figure 3-22).
h.
In this position, measure the rocker arm setting dimension A; it should be 2.350 + 0.007-inch (59.7 + 0.2 mm).
i.
Setting the thrust screw (1). Loosen hex nut (3) by 2 to 3 turns with a 13 mm open end wrench.
i.
Adjust thrust screw with a 5 mm open end wrench so that the setting A; stated above is obtained when hex nut is
tightened.
k.
Reinstall rocker cover (paragraph 3-22).
l.
After tightening the cover fastening bolts, check that the decompression shafts can be turned easily through 10
degrees.
Figure 3-21. Valve Clearance
Figure 3-22. Adjusting Thrust Screw
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