TM-9-2815-205-34

ENGINE WITH CONTAINER; MODELS 5063-5299, 5063-5392, 5063-5393, 5063-5395, 5063-5398, 5063-539F, 5063-539L

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE

AUGUST 1992

TM-9-2815-205-34 - Page 312 of 596

TM 9-2815-205-34

3-50. PISTON AND CONNECTING ROD MAINTENANCE - TRUNK (MODELS 5063-5299,

5063-5395, AND 5063-5398) (Cont)

d. Inspection

NOT E

Trunk piston can come in two configurations as shown. The new configuration has eight

or sixteen oil drain holes and J-relief. The old configuration has eight oil drain holes and

no J-relief. Either configuration is acceptable and matching throughout an engine is not

required.

(1) Piston

(a)

Check cylinder liner and block bore for excessive

could cause failure of piston (see Para 3-52).

out of round, taper, or high spots which

NOT E

Overheating or burned spots on piston may indicate an obstruction in connecting rod

oil passage.

3-182