ARMY TM 9-6115-670-14&P
6-52
REPLACE
a. Remove two bolts (3) securing connecting rod cap (4) to connecting rod (1).
b. Bring the piston (5) to top dead center by turning the crankshaft.
c. Use the grip of a hammer to push the connecting rod (1) from the bottom of the cylinder until
piston (5) emerges from cylinder.
d. Pull piston (5) out from cylinder by hand.
e. Apply lubricating oil to the inside surface of the cylinder.
f. Apply lubricating oil to the crank pin bearings and connecting rod screws (3).
g. Align rings and use piston ring compressor to compress rings, install piston (5) and connecting
rod (1) into the cylinder.
h. Align marks (2) on connecting rod (1) and connecting rod cap (4) and install connecting rod cap
(4) with two bolts (3). Torque between 19.5 and 22.4 ft-lbs (26.5 to 30.4 Nm).
CAUTION
Use retaining nut on crankshaft pulley to turn
crankshaft. Do not turn crankshaft by any other means.
CAUTIONS
When installing piston, the number engraved on the
piston head (6) must be positioned on the side of the
engine opposite the injection pump.
Piston rings must be properly aligned. See para
6.24., REPLACE, for alignment of piston rings.
