3-72 ENGINE
• The 1st and 2nd
piston rings should
be
installed
with
the
mark facing up.
•
First, install
a
spacer
©
into the
oil
ring groove
and
then
install
the two side rails
©.
The spacer and side rails do not
have
a
designated top and bottom.
They
can
be
installed
in
any position.
A
CAUTION
When
installing the
spacer,
be careful not to allow its
two ends to overlap in the groove.
0
INCORRECT
ECORRECT
•
Position the piston ring
gaps
as
shown. Before inserting the
piston into its cylinder, check that the
gaps
are properly posi-
tioned.
@
Exhaust side
(§) Intake side
©
2nd ring and lower side rail
@
Upper
side rail
©
1st ring and spacer
®
12oX(4)
~120°/
®
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