travel, then wipe the journal clean and
Description
lubricate it with clean engine oil.
cylinder
The
replaceable
liner
2. Install the upper bearing shell--the
curately machined and heat treated to
one with the short groove and oil hole at
provide a long wear scuff resistant sur-
each parting line--in the connecting rod.
The flange at the top fits into a
face.
Be sure the tang on the bearing shell
counterbore in the cylinder block and
fits in the groove in the connecting rod.
which permits accurate alignment of the
3. Pull the piston and rod assembly down
cylinder liner.
until the upper rod bearing seats firmly
on the crankshaft journal.
A long oval port cylinder liner is used
4. Note the numbers stamped on the con-
with pistons equipped with three com-
pression rings and a fire ring (top ring
necting rod and the bearing cap and in-
groove).
stall the lower bearing shell--the one
with the continuous oil groove--in the
The liner is cooled by means of a water
bearing cap, with the tang on the bear-
ing shell in the groove in the bearing
jacket in the cylinder block and by the
cap.
scavenging air introduced into the cylin-
der through the air inlet ports around
5. Install the bearing and cap and tight-
the
liner (Figure 11B-129 on page
en the connecting rod bolt nuts to 60-70
T h e a i r i n l e t p o r t s are ma-
11B-84).
lb-ft (81-95 Nm) torque (lubrite nut) or
chined at an angle to create a uniform
65-75 lb-ft (88-102 Nm) torque (castel-
swirling motion to the air as it enters the
lated nut).
cylinder.
This motion persist through-
out the compression stroke and facilitates
NOTE
Be sure the connecting rod bolt
The wear on a liner and piston is direct-
has not turned in the connecting
ly related to the amount of abrasive dust
rod before torque is applied to the
and dirt introduced into the engine com-
nut.
bustion chamber through the air intake.
on a cylinder wall, forms a lapping com-
pound and will result in rapid wear.
the oil inlet and outlet pipes.
Therefore, to avoid pulling contaminated
NOTE
must be serviced regularly according to
the surroundings in which the engine is
If shims were used between the oil
operating.
pump body and the main bearing
caps, i n s t a l l t h e s h i m s i n e x a c t l y
the same location from which they
R e m o v e Cylinder Liner
were removed.
very i m p o r t a n t t h a t t h e p r o p e r
It
is
method is followed when removing a cyl-
inder liner. Do not attempt to push the
7.
Install
the
oil
pan,
using
a
new
liner out by inserting a bar in the liner
gasket.
ports and rotating the crankshaft, oth-
8.
Refer
to
Section
11H
and
fill
the
erwise the piston may be damaged or the
upper ring groove may collapse.
stick.
Remove a cylinder liner from the block as
follows:
the engine on the run-in schedule out-
1. Remove the piston and connecting rod
lined in this subsection.
assembly as outlined in "Remove Piston
and Connecting Rod" on page 11B-71.
CYLINDER LINER
2. Remove the cylinder liner with tool J
1 9 1 8 - 0 2 as follows:
Engine (Less Major Assemblies)