oil ring and align the gaps as indi-
cated in Figure 11B-124.
NOTE
The scraper edges of all oiI control
rings must face downward (toward
the bottom of the piston) for prop-
er oil control.
Install the piston and connecting rod as-
sembly in the engine.
CONNECTING ROD
Description
The connecting rod (Figure 11B-125 on
page 11B-78) is forged to an "I" section
with an open or saddle type contour at
the upper end and a bearing cap at the
lower end.
The bearing cap and con-
necting rod are forged in one piece and
bored prior to separation.
The upper end of the connecting rod is
machined to match the contour of the pis-
ton pin.
The piston pin is secured to
the connecting rod with two self-locking
bolts and spacers.
The bearing cap is
secured to the connecting rod by two
specially machined bolts and nuts.
Lubricating oil is forced through a
drilled oil passage in the connecting rod
to the piston pin and bushing.
A service connecting rod includes the
bearing cap and the attaching bolts and
nuts.
D i s a s s e m b l e Connecting Rod from Piston
Figure 11B-124. Piston Ring
Installation Instructions
With the rod and piston assembly re-
moved from the engine, disassemble the
ring to protrude beyond allowable lim-
piston and connecting rod as outlined
its and will result in breakage when
under "Disassemble Piston and Connect-
the piston is inserted in the ring
ing Rod" on page 11B-71.
compressor during installation in the
cylinder liner.
Do not cut or grind
the ends of the expanders to prevent
Inspection
overlapping.
Cutting or grinding the
will decrease the expanding
ends
Clean the connecting rod and piston pin
force on the oil control rings and re-
with a suitable solvent and dry them with
sult
in
high
lubricating
Blow compressed air
oil
through the oil passage in the connecting
consumption.
rod to be sure it is clear of obstructions.
Use crocus cloth, wet with fuel oil, to
B. Install the oil control rings by hand.
remove any trace of fretting and/or cor-
Start with the upper half of the top
E n g i n e (Less Major Assemblies)