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3.
T
he gap between the rings in the oil ring shall be
matched with the gap between the rings. When
installing the oil ring, install the baffle ring first and
then install the side guide.
Piston assembly
Install piston, piston pin and new
piston pin ring.
Note
：
1.Mark face“
”toward engine
exhaust side, when installation.
2.The opening of the end clearance of
the piston pin ring shall be downward.
3.If the piston pin ring is sever
deformed, replace it.
4.Do not let the piston pin ring fall
into the crankcase.
Mark face“
”toward engine exhaust side
Cylinder body assembly
1.Install cylinder block locating pin and new cylinder block gasket.
2.Apply oil evenly on the surface of cylinder body, piston and piston ring.
3.First stagger the openings between the piston rings by 120°, then assemble the cylinder body in position slightly.
4.Assemble the chain guide plate in place.
note
：
When installing the cylinder body,
avoid damaging the piston ring.
