TM 5-4320-302-14
5-20.
CYLINDER HEAD ASSEMBLY, ROCKER ARMS, PUSHRODS,
AND TAPPETS (CONT)
Location/Item
Action
Remarks
CLEANING/INSPECTION
WARNING
Severe burns, illness, or death may result if personnel
fail to handle diesel fuel oil properly. Observe the
following precautions:
Do not inhale vapor.
Work in a well-ventilated area.
Do not use near open flame, sparks, or excessive
heat.
Death or severe injury might result when compressed air
is used to blow dirt from skin or clothing. Air entering
body openings is extremely dangerous. Compressed air
used for cleaning shall not exceed 100 psi (690 kPa).
Use goggles or face shield for eye protection. Do not
direct airstream against skin.
14. Cylinder head,
Clean with a clean cloth dampened with VV-F-800
intermediate
diesel fuel oil.
Use wire brush where necessary.
Dry
ring, cover,
with compressed air.
Inspect for cracks, rust,
rocker arms,
corrosion, and excessive heat damage. Inspect
pushrods, cover
cylinder head for carbon build up near injector area.
tubes, tappets,
and associated
Inspect bolt holes for chipped or cracked edges.
parts
Check that cylinder head seat is smooth and flat.
Replace cylinder head assembly if it is excessively
worn or damaged and refer unit to general support
for repair.
Inspect all other components for excessive wear,
alinement, dents, rust, corrosion, stripped threads,
or other damage.
Replace
any
damaged
or
excessively
worn components.
Refer replaced rocker
arms and tappets to general support for repair.
Inspect waisted bolts.
If strained past their normal
length of 7.42 inches (188.50 mm), replace
any strained bolts.
REPAIR
15. Cylinder head,
Refer to general support for repair as necessary.
rocker arms,
and tappets
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