TM 9-2815-202-34
4-38. CYLINDER HEAD REPAIR (Cont)
4. Thread bridge guide remover
(77) into tapped hole.
5. Attach slide hammer (78) to
guide remover (77) and remove
guide.
(c) Install valve bridge guides as follows:
1.
2.
3.
Apply a coat of sealant to bridge
guide (18).
Start guide (18) in cylinder head
with undercut end first.
Place bridge guide installer (79)
over guide-(l 8) and drive into
place. Installer will position
guide to correct height (2.040
inches) in cylinder head.
(5) Valve inserts
Inspect valve inserts for excessive wear,
pitting, cracking, or improper seat angle.
Replace inserts as follows:
(a)
(b)
(c)
Place cylinder head on wood blocks
with bottom side up.
Using valve seat insert remover (80),
remove valve insert (81 ).
Clean valve seat insert counterbore
in cylinder head and inspect for
concentricity, flatness, and cracks.
4-194
C h a n g e 1
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