TM 5-3810-207-20/TO 36C23-3-37-12
B-Intake and exhaust manifold, removal
Figure 161-Continued.
Section VI. CARRIER ENGINE AND EXHAUST VALVES
264. General
The six intake and six exhaust valves are located
in the cylinder heads and are actuated by the camshaft
through the tappets, push rods, and rocker arms.
Adjusting screws in the rocker arms provide the means of
adjusting the valve clearance. The stem of each valve
slides within a guide pressed into the cylinder heads. The
intake valves control the admission of the fuel-air mixture
to the cylinders, while the exhaust valves permit the
explusion of gases from the cylinders.
265. Valve Cover
a.
Removal.
(1)
Remove the breather tube from the valve
cover assembly (par. 240).
(2)
Remove the accelerator bellcrank (par.
249).
(3)
Remove the rocker arm valve covers as
instructed on figure 162.
b.
Cleaning and Inspection.
(1)
Clean all parts with an approved cleaning
solvent.
(2)
Inspect the valve cover for dents, elongated
holes, and other damage.
(3)
Replace damaged parts as necessary.
c.
Installation.
(1)
Install the rocker arm valve covers as
illustrated on figure 162.
(2)
Install the accelerator bellcrank (par. 249).
(3)
Install the breather tube on the valve cover
assembly (par. 240).
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