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TM 10-3930-643-34
GENERAL SUPPORT ENGINE, FUEL, EXHAUST AND COOLING MAINTENANCE. (cont)
13-8.
Pistons, Connecting Rods and Connecting Rod Bearings. (Sheet 4 of 12)
DISASSEMBLY (cont)
5.
6.
7.
8.
NOTE
Do not force pin. If pin cannot
be removed when cold, heat the
piston in water 160-180 degrees F.
Using retaining ring pliers, remove
two retainers (9) and pin
(10) by
hand,
NOTE
Before removal, note the direction
of valve depressions in
relation
to the connecting rod for proper
assembly.
Separate connecting rod (4) and
piston (5).
Using a dial indicator, measure pin
(10) in pin bushing. If reading is
not between
.0006-.003 inches,
replace pin (10).
If reading is not
accurate due to gumming on piston (5)
and pin (10),
repeat
measurement
after cleaning.
Inspect bushing (11) for wear. Using
an arbor press, remove bushing
(11)
and discard. only if worn.
Go to sheet 5
13-52
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