TM 5-1940-277-34
CYLINDER HEAD ASSEMBLY INSPECTION AND REPAIR INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
c.
Replace guide
See removal step
if worn.
1k.
b.
Valve seat
a.
Inspect for:
inserts (10)
Excessive car-
bon build-up,
Pitting,
Cracks,
Seat angle
greater than
30°, and
Looseness.
b.
Recut seats
Use valve seat
which are
grinding kit.
pitted or
burned.
c.
Replace
See removal step
defective
1k.
insert.
3.
Valve (8)
Valve (8)
a.
Inspect face
for: Pitting,
Distortion
(warpage),
Ridging,
Cracks, and
Excessive carbon
build-up.
b.
Inspect stem
for Scuffing,
Scratches.
2-283
