65
4
11
• Install the spring expander on top of the
lower rail, then install the upper steel rail.
5. Using Piston Ring Expander #19340,
install the wiper ring, then the
compression ring.
NOTE: If installing the original rings, ensure the
top sides are facing the top of the piston. If
installing a new ring set, follow the instructions
provided with the set.
Install Piston and Connecting Rod
1. Thoroughly clean and oil cylinder bore and
crankpin journal of crankshaft.
2. Rotate crankshaft until crankpin journal is
at bottom of stroke.
3. Using Ring Compressor Tool #19070 or
#19230, install piston with notch or arrow
toward flywheel side of engine, taking care
not to damage crankpin journal or
connecting rod bearing.
4. Fit connecting rod bearing on crankpin
journal, then install rod cap with match
marks aligned. Cap should snap into
position when assembled correctly.
5. Install rod screws. Tighten screw closer to
the piston first, and the screw farther from
the piston second. Torque screws to
values listed in Section 12 - Engine
Specifications.
NOTE: Failure to use a torque wrench can result
in loose rods causing breakage, or over-
tightened rods causing scoring.
6. Rotate crankshaft two revolutions to
ensure crankpin and rod do not bind, then
move connecting rod sideways to ensure
there is clearance on crankpin. If binding
occurs, remove and reinstall the rod cap.
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