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TM 55-1905-220-14-6
3-166.5 CAMSHAFT AND BALANCE SHAFT - MAINTENANCE INSTRUCTIONS (Continued).
LOCATION
ITEM
ACTION
REMARKS
INSPECTION
Wear protective eye goggles 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
Examine for wear and
Replace if
and
bad scoring.
damaged.
journals
b.
Center
Check the runout at the
center bearing with the
camshaft mounted on the
end bearing surfaces.
Runout should not exceed
.0002 inch (.0005 cm).
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 avail-
able in .005 inch and
.010 inch oversize. The
clearance between the
thrust washer and the
thrust shoulder of the
shafts is .004 inch to
.012 inch (.010 to .030
cm) with new parts or a
maximum of .018 inch
(.046 cm) with used parts.
3-2826


 


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