TM 5-1940-277-34
CYLINDER HEAD ASSEMBLY INSPECTION AND REPAIR INSTRUCTIONS (Continued)
LOCATION
ITEM
ACTION
REMARKS
j.
Valves (8)
Remove.
Keep valves in
order.
NOTE
Inspect valve guides and seat inserts for serviceability before removing. Do not remove unless
they are being replaced.
k.
Valve
Remove.
Use valve guide
guides (9)
remover and
hammer.
l.
Valve seat
Remove.
Use valve seat
inserts (10)
remover and
hammer.
INSPECTION AND REPAIR:
2.Cylinder head
a.
Valve
a.
Measure
Use micrometer
(1)
guides (9)
clearance
calipers, inside
between valve
and outside.
stem and
guide: (bore
diameter minus
stem diameter)
- Inlet 0.0011
to 0.0033 in.
(0.025 to
0.084 mm)
- Exhaust 0.0018
to 0.004 in.
(0.046 to
0.102 mm).
b.
Measure guide
See figure.
(9) protrusion
above cylinder
head.
2-281
