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 TM 55-1905-219-14-5
3-90.2. EXHAUST VALVE - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
INSTALLATION - CYLINDER HEAD OFF ENGINE (Cont)
d. Cylinder
Heat.
Immerse the
head
cylinder head
for at least
30 minutes in
water heated
to 180 to
F
200 (82
F
to 93 ).
C
e. Cylinder
Rest the cylinder head,
head and
bottom side up, on a
valve
work bench and locate
seat
the insert squarely in
insert
the counterbore, seating
face up. Install the
insert in the cylinder
head while the head is
still hot and the insert
is at room temperature,
otherwise installation
will be difficult and
the parts may be dam-
aged.
f. Valve
Drive insert in place,
Use tool
seat
until it seats solidly
J 6568.
Insert
in cylinder head.
(12)
3-1560
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