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 TM 55-1905-220-14-5
3-90.2. EXHAUST VALVE - MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
REMOVAL - CYLINDER HEAD OFF ENGINE (Cont)
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.
5. Tighten the collet
cone and continue to
drive the insert out
of the cylinder head.
3-1535
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