Ream piston pin bushing (7) in order to obtain a
clearance of 0.0085 ±0.0055 mm (.0003 ±.0002 inch)
between the piston pin and the piston pin bushing.
Lubricate all components with clean engine oil.
Use a suitable press and a suitable adapter to install
piston pin bushing (7) into connecting rod (6).
NOTE: Ensure that the oil hole is aligned with the oil hole
at the top of the connecting rod.
Install bearing (5) in connecting rod (6).
Install piston pin (4).
NOTE: If the piston pin cannot be installed by hand, heat
the piston to a temperature of 45 ±5° C (113° ±9° F).
Use Tool (B) to install two retaining rings (3).
Use Tool (A) to install piston rings (1) on piston (2) with
the following steps.
Install the oil control piston ring in the groove
that is lowest on the piston. The latch pin must
be inside the ends of the spring.
NOTE: Ensure that the latch pin is 180 degrees from the
piston ring gap.
Install the cast iron piston ring with the tapered
face into the second groove on the piston. The
stamp "TOP" must be toward the top of the
NOTE: Cast iron piston rings that are new have a red
mark which must be on the left of the piston ring
gap when the piston ring is installed.
Position the piston ring gaps at 120 degrees
away from each other.
Install the piston ring with the barrel face and the
molybdenum insert into the top groove on the
piston. The top piston ring has a wedge shape.
The stamp "TOP" must be toward the top of the
NOTE: Top piston rings that are new have a green mark
which must be on the left of the ring gap when the
ring is installed.
Install the pistons and the connecting rods.
Refer to Disassembly and Assembly, "Piston
and Connecting Rods - Install".
Pistons and Connecting Rods - Install
SMCS Code: 1225-012
Piston Ring Compressor
Liner Projection Tool