TM 5-4310-386-14
(16)
Measure the outside diameter of piston pin with outside micrometer. Should measure 1.3779 to 1.3777
inches (35 to 34.994 mm).
(17)
Inspect piston pin (8) for wear using a beveled steel straight edge.
(18)
Measure inside diameter of piston pin bushing (small end of connecting rod) with inside micrometer.
Measure at points 1 and 2 in planes a and b. Should measure maximum 1.3835 inches (35.19 mm).
(19)
Inspect piston bushing (9) for cracks or excessive wear. Replace if cracked or worn excessively.
(20)
Inspect piston rings for cracks, or excessive wear. Replace if cracked or worn excessively.
FOLLOW-ON MAINTENANCE
Install engine cylinder (para. 5-42).
5-183
