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 TM 55-1905-220-14-5
3-15. CAMSHAFT AND BALANCE SHAFT-MAINTENANCE INSTRUCTIONS (Cont).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION
Wear eye protection when using compressed air.
NOTE
Clean the camshaft, balance shaft and related parts with fuel oil. All
foreign matter must be removed from the camshaft oil passage. Dry all
parts with compressed air.
3.
a. Cams and
Examine for wear and
Replace if
journals
bad scoring.
damaged.
b. Center
Check the runout at the
center bearing with the
camshaft mounted on the
end bearing surfaces.
Runout should not exceed
.0002".
c.
Cam fol-
Check the cam followers
lowers
if the cam surfaces are
scored.
d. Thrust
Inspect both faces of
washers
each thrust washer.
Replace excessively
scored or worn washers.
Thrust washers are
available in .005" and
.010" oversize. The
clearance between the
thrust washer and the
thrust shoulder of the
shafts is .004" to .012"
with new parts or a
maximum of .018" with
used parts.
3-1578
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