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 TM5-241O-237-34
3-9. CYLINDER HEAD ASSEMBLY AND SPACER PLATE - REPLACE/REPAIR (Cont'd)
b. Disassemble
(1) Use a valve spring compressor to
compress valve spring (15) and
remove locks (13).
(2) Remove the valve spring
compressor, rotocoil (14), valve
spring (15), and valve (16).
(3) Inspect valves, valve springs,
rotocoils, and locks as described
in Section C, Cleaning,
Inspection, and Repair.
(4) Repeat STEPS 1 through 3 for
all of the remaining valves.
(5) Inspect valve guides (17) as
described in Section C, Cleaning,
Inspection, and Repair. Do not
remove valve guide if there is no
indication of visible damage or
if measurements are within wear
limits. If required, remove
valve guide.
(6) Inspect valve seat inserts (18)
as described in Section C and D,
Cleaning, Inspection, and Repair.
If valve seat insert must be
replaced, proceed as follows.
(a) Remove valve seat insert
(18).
(b) Clean and remove burrs from
the valve seat bore.
(c) Refer to Table 3-2 for all
wear limits and speci-
fications applicable to the
valve seat insert. If
measurements are not within
the specified limits, send
cylinder head to higher
echelon maintenance for
repair, or replace cylinder
head.
3-33
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