TM 5-3805-262-34
INSPECTION AND REPAIR (SHEET 2 OF 2)
(3)
(4)
(5)
(6)
Measure piston pin bore in piston (3) using bore gage and micrometer.
Subtract measurement recorded in step (1) above to obtain piston pin bore
clearance. If clearance exceeds 0.0021 inch, replace piston (3).
Use thickness gage to check
side clearance of oil ring (6).
If side clearance exceeds
0.0035 inch, replace piston
(3).
In same manner as above,
measure side clearance of
compression rings (4 and 5). If
side clearance exceeds 0.006
inch, replace piston (3).
Use micrometer to measure piston (3)
diameter at bottom of piston, perpen-
dicular to piston pin bore. Replace
piston if diameter is not between
4.6178 to 4.6198 inches.
NOTE
Replace an item if inspection
indicates need for replacement.
(7)
Inspect retaining rings (7) for
damage or loss of resiliency.
(8)
Inspect connecting rod (2) for
cracks, damage, wear, scoring, or
pitting.
(9)
Inspect inserts (10) for pitting,
flaking, cracking, or evidence of
overheating.
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