TM 5-4310-387-14
(3)
Clean piston (4) with TSP ultrasonic cleaner and dry thoroughly.
(4)
Inspect piston (4) and replace if scored or if measurements taken 900 apart differ by more than 0.01 in.
(0.254 mm) or if diameter of piston is less than 3.450 in. (87.57 mm).
(5)
Inspect connecting rod (5) and replace if bent or cracked.
(6)
Inspect bushing (6) and replace if scored or clearance between wrist pin (7) is greater than 0.003 in.
(0.0762 mm).
(7)
Inspect bushing (8) and replace if scored or clearance between crankshaft is greater than 0.001 in. (0.0254
mm).
(8)
Inspect wrist pin (7) and replace if scored or bent.
(9)
Install new plain piston ring (3), and scraper ring (2).
(10)
Install two new tapered piston rings (1) with taperfacing up.
(11)
Install first stage piston and connecting rod assembly (para. a.).
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