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 TM 55-1905-220-14-4
3-33.2. EXHAUST VALVE - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
REMOVAL - CYLINDER HEAD OFF ENGINE (Cont)
b. Remove
1. Place the collet of
valve
tool J 6567 inside the
seat
valve seat insert so
insert
the bottom of the col-
(12)
let is flush with the
bottom of the insert.
2. Hold the collet handle
and turn the T handle
to expand the collet
cone until the insert
is held securely by
the tool.
3. Insert the drive bar
of the tool through
the valve guide, and
tap the drive bar
once or twice to move
the insert about 1/16
inch (1.588 cm).
4. Turn the T handle to
loosen the collet cone
and move the tool into
the insert slightly so
the narrow flange at
the bottom of the col-
let is below the valve
seat insert.
3-720
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