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 TM 55-1905-219-14-10
5-19.1. CAMSHAFT ASSEMBLY AND GEAR TRAIN - MAINTENANCE INSTRUCTIONS.
(Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION (Cont)
l.
Inspect the vibration damper, if
used, for dents, nicks or bulges in
the outer casing of damper.
Replace damper if necessary.
Regardless of condition, the damper
must be replaced at time of normal
overhaul.
m. Effective with engines 12VA-458, a
front camshaft gear with 66 teeth
replaced the former gear which had
92 teeth to correspond with a
change in the water pump drive
gear.
6. Camshaft
gears
WARNING
Wear protective eye goggles when using compressed air.
Clean the gears with fuel oil and dry them with compressed air. Then, examine the
gear teeth for scoring, pitting, or wear. Replace the gears if necessary. Also,
check the other gears in the gear train.
INSTALLATION
7. Camshaft
a. Plugs (32
Install.
Use new plugs.
gears and
and 33)
parts
b. Thrust
Apply grease to the
washers
steel face of each thrust
(29)
washer. Then, place a
thrust washer against
each end of the two
camshaft rear end bearings.
Be sure the steel face of
each washer is next to
the bearing.
5-334
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