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 TM 55-1905-221-14-3
6-23.3.
CAMSHAFT AND BALANCE SHAFT - MAINTENANCE INSTRUCTIONS.
(Continued).
LOCATION/ITEM
ACTION
REMARKS
INSPECTION (Cont)
c.
Inspect both faces of the
thrust washers. Those
that are excessively
scored or worn must be
replaced. New thrust
washers are available in
standard (.120 to .122
inch thick) and oversize
(.005 or .010 inch).
The clearance between
the thrust washer and
the thrust shoulder of
the shafts is .004 to
.012 inch with new
parts, or a maximum of
.018 inch with used
parts.
d. When the thrust surfaces
of a camshaft or balance
shaft are ground undersize,
special care must be
taken as follows:
1. Leave a 1/32 to 3/32
inch radius between
the bearing surface
of the thrust collar
shoulder and the
bearing surface
of the camshaft.
2. Leave a .010 to .030
inch radius between
the bearing surface
of the thrust collar
shoulder and the
bearing surface of the
balance shaft.
6-349
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