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 TM 55-1905-221-14-2
5-14. ROCKER ARMS, CAM FOLLOWERS AND PUSHRODS (Continued).
LOCATION/ITEM
ACTION
REMARKS
INSPECTION (Cont)
g. The diameter of a cam follower is 1.060 inches (2.692 cm)
to 1.061 inches (2.695 cm), and the clearance between the
cam follower and the cylinder head bore with new parts is
.001 inch (0.003 cm) to .003 inch (0.008 cm). With used
parts, a maximum clearance of.006 inch (0.015 cm) is
allowable.
h. The cam rollers must turn smoothly and freely on their pins,
and the rollers must be free from flat spots or scuff marks.
If the rollers do not turn freely, or have been scored or worn
flat, then examine the cams on which they operate. If the
cams are excessively worn or damaged, replace the
camshaft.
i.
Measure the total clearance between the roller bushing and
pin, crosswise of the pin, and, if the bushing is worn to the
extent that more than .010 inch (0.025 cm) diametric
clearance exists, install a new cam roller and pin, which are
serviced as a set, in the follower assembly. Also, check the
total side clearance between the roller and follower: this
clearance must be .015
5-285
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