5.1
ENGINE
BODY
68
mm
STROKE
SERIES
WSM,OI 162
6,
-2-
B083P045
I
B083F048
I
I
0,79 rad.
(45O)
I
8083F044
1
B083F047 B083F046
Piston Ring and Connecting
Rod
1,
Remove the piston rings using
a
piston ring tool.
2.
Put
the alignment mark
(9)
on the piston
as
shown
3.
Remove the piston pin (l), and separate the
in figure.
connecting rod (7) from the piston
(2).
(When reassembling)
0
When installing the ring, assemble the rings
so
that the manufacturer's mark
(13)
near
the
gap
faces the top of the piston.
When installing the oil ring onto the piston, place
the expander joint
(1 1)
on the opposite side
of
the
oil ring gap
(12).
0
Apply engine oil to the piston pin and small end
bushing.
a
When installing the piston pin, immerse the piston
in
80°C
(176°F)
oil
for
10
to
15
minutes and insert
the piston pin to the piston.
0
Install the connecting rod
(7)
to the piston
(2)
so
that the alignment mark (10) on the connecting
rod positions the opposite side
of
the number
(9)
on the piston head. (See figure)
.
IMPORTANT
0
Mark the same number on the connecting rod and
the piston
so
as
not to change the combination.
0
When inserting the piston into the cylinder, place
the
gap
of
the compression ring
1
on the opposite
side
of
the
combustion chamber and stagger the
gaps
of
the compression ring
2
and oil ring
making
a
right angle from
the
gap of the
compression ring
1.
Carefully insert the pistons using a piston ring
compressor. Otherwise, their chrome-plated
section may be scratched, causing trouble inside
the liner.
[A]
Top
Compression Ring
181
Second Compression
Ring
(1)
Piston Pin
(8)
Connecting Rod Cap
(2)
Piston (9) Number
(3)
Piston Pin Snap Ring
(4)
Compression Ring
1
(5)
Compression Ring
2
(6) Oil Ring
(7)
Connecting Rod
IC]
Oil
Ring
Gap
Gap
Gap
(IO)
Mark
(1 1)
Expander Joint
(I
2)
Oil Ring Cap
(13) Manufacturer's Mark
s-77
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