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TM 10-3930-669-34
WARNING
Exercise care when working around
hot cylinder head. Wear gloves.
Severe burns can result if protective
measures are not taken.
(18)
Remove cylinder head (1) from oven.
NOTE
Replace valve guides in need of
replacement at this time.
(19)
Insert punch into chamber side of valve guide
(15) and drive guide out of cylinder head (1).
(20)
Place new valve seat (13) on drift
with
chamfered side up and drive seat into recess of
cylinder head (1). Ensure that seat is fully
inserted.
(21)
Position new locating ring on valve guide (15)
and drive longer end of guide into bore from
rocker arm side. Drive in until locating ring seats
in guide bore.
(22)
After head cools, ream valve guides (15) using
special 8.0000 mm (0.3149 in.) reamer.
3-47
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