R M Y T M 9 - 2 8 0 5 - 2 5 8 - 1 4
AIR FORCE TO 38G2-89-21
NAVY NAVFAC P-8-614-14E
6-7. Piston and Connecting Rod (cont).
N O TE
Do not reuse piston rings or retaining rings.
Remove two retaining rings (1) and slide piston pin (2) out of piston (3) and connecting rod (4).
Remove spacer ring (5), compression ring (6), intermediate compression ring (7), oil ring (8) and
expander ring (9).
W A R N I N G
Drycleaning 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°F.-138°F. (38°C.-60°C.).
Clean all items in drycleaning solvent, and dry thoroughly.
N O T E
Connecting rod bushing must be pressed out to replace.
Inspect connecting rod bearing cap (10), connecting rod (4), bearings (11), and bushing (12). Refer to
Table 6-2 for wear limits. Replace all items that are worn or otherwise damaged.
Inspect bolt (13) and nut (14) and replace if threads are stripped or otherwise damaged.
Ensure piston ring grooves are clean, and all carbon deposits are removed.
Inspect piston (3) and replace a worn or otherwise damaged piston. Refer to table 6-2 for wear limits.
Install ring expander (9), oil rings (8), intermediate compression ring (7), compression ring (6), and
spacer ring (5), and stagger ring gaps.
N O TE
Install new retaining rings. Do not reuse old retaining rings.
Position connecting rod (4) in piston (3) and install piston pin (2) and two retaining rings (1).