ARMY TM 9-2805-257-14
AIR FORCE TO 38G2-103-2
NAVY NAVFAC P-8-612-14E
5-18. Piston and Connecting Rod Assembly (cont).
The repair procedures are the same for both piston and connecting rod assemblies.
b. Repair. (figure 5-18)
Remove two retaining rings (1) and remove piston pin (2) from piston (3) and connecting rod (4).
Remove spacer ring (5) and compression ring (6).
Remove intermediate compression ring (7).
Remove oil ring (8) and ring expander (9).
Dry cleaning solvent PD-680 used to clean parts is potentially dangerous to personnel
and property. Avoid repeated and prolonged skin contact. Do not use near open flame
or excessive heat. Flash point of solvent is 100°F138°F (38°C-60°C).
Clean all components of piston and connecting rod assembly with dry cleaning solvent and dry
thoroughly. Remove all carbon deposit from top of piston and piston ring groves.
Inspect piston (3), piston pin (2), connecting rod (4), connecting rod bearing cap (10), dipper bolt (11),
and bolt (12) for cracks, excessive wear, or other signs of damaged and replace items as needed. Refer
to Table 5-2 for wear limits.
Do not reuse piston rings, retaining rings, or Iockwasher (13). When installing piston
rings stagger ring gaps.
Install ring expander (9) and oil ring (8).
Install intermediate compression ring (7).
Install compression ring (6) and spacer ring (5).
Position connecting rod (4) in piston (3) and install piston pin (2) and two retaining rings (1).