TM 5-3895-370-14&P
5-67. PISTON AND CONNECTING ROD REPLACEMENT/REPAIR (CONT).
WARNING
Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only with
effective chip guarding and personal protective equipment (goggles/shield, gloves, etc).
(3)
Dry all parts using compressed air or lint-free cloth.
(4)
Check piston and connecting rod for excessive wear and other damage. Replace parts failing inspection.
(5)
Check remaining parts for wear and other damage. Replace parts failing inspection.
(6)
Measure each piston (1) at position A Normal
measurement is 4.0088 to 4.0117 in. (101.8235
101.8972 mm). If above or below limits, replace
piston.
(7)
Measure each piston (1) at position B. Normal
measurement is 1.5750 to 1.5758 in. (40.005
40.0253 mm). If above or below limits, replace
piston.
(8)
Measure each wrist pin (2) at position C. Normal
measurement is 1.5744 to 1.5749 in. (39.9898
40.0025 mm). If above or below limits, replace
piston pin.
(9)
Install each ring on piston (1) and measure ring
clearance (position D). If above or below limits,
replace ring. Normal measurements are as
follows:
(a)
Top ring is 0.003 to 0.0059 in. (0.076
0.1499 mm).
(b)
Intermediate ring is 0.003 to 0.0059 in.
(0.076 0.1499 mm).
(c)
Oil control ring is 0.0016 to 0.0051 in.
(0.0406 0.1295 mm).
(10)
Measure each connecting rod (3) at position E.
Normal measurement is 1.5769 to 1.5784 in.
(40.0533 40.0914 mm). If above or below limits,
replace connecting rod.
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