TM 5-4320-300-14
6-10. PISTONS AND CONNECTING RODS (CONT)
Location/Item
Action
Remarks
41. Oil control
Position oil control ring expanders in oil control
rings
ring grooves, without overlapping them. If ex-
panders overlap, replace them. Install upper and
lower half of upper oil control ring by hand,
with the scraper edges facing down. Adjust the
upper half so that its gap is 180 degrees from
the gap in the oil expander. Adjust the lower
half so that its gap is 45 degrees from the gap
in the upper half. Install upper and lower half
of the lower oil control ring the same way.
42. Connecting
Slide upper and lower
rod bearing
bearing shells into their
shells, caps,
original positions in the
nuts, and
connecting rod and
bolts
bearing cap. Position
cap on connecting rod.
Install bolts through
bearing cap. Tighten
nuts hand tight.
INSTALLATION
43. Connecting
Rotate crankshaft until connecting rod journal
rod upper
of the cylinder being worked on is at the
bearing shells
bottom of its travel. Wipe journal clean and
lubricate it with clean MIL-L-2104 oil. Install
upper bearing shell in connecting rod. Lubri-
cate bearing shell with clean MIL-L-2104 oil.
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