TM 5-1940-277-34
CAMSHAFT AND CAMSHAFT BEARING INSPECTION AND REPLACEMENT INSTRUCTIONS
LOCATION
ITEM
ACTION
REMARKS
d.
3 bolts (16),
Remove.
Use 9/16 in soc-
3 washers
ket and ratchet.
(17), locking
plate (18) and
thrust plate
(19)
e.
Camshaft (10)
Withdraw from
Take care not to
cylinder block
damage bearings
(20).
with cam lobes.
INSPECTION
3.
Camshaft (10)
Measure diameter
Use micrometer
of all bearing
calipers, outside
journals (21)
and (22).
4.
Cylinder block
Camshaft
a.
Measure
Use micrometer
(20)
bearings (23)
inside dia-
calipers, inside.
meter of
bearings.
b.
Determine
camshaft to
bearing
clearance,
(diameter of
step 4a minus
diameter of
step 3),
compare to
specification:
Front (24) - 0.0015
to 0.0025 in (0.038
to 0.063 mm)
Rear and Interme-
diate (23) - 0.001
to 0.002 in (0.025
to 0.051 mm).
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