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3-53 ENGINE
◉ ◉ PISTON RING
● Install the oil ring first, the 2nd ring second, and
the 1st ring last.
NOTE
� � The 1st ① ①
and 2nd ② ②
shape.
� � The 1st and 2nd piston rings should be
installed with the mark facing up.
● First, install a spacer ③
and then install the two side rails ④ . The spacer
and side rails do not have a designated top and
bottom. They can be installed in any position.
CAUTION
When installing the spacer, be careful not to allow
its two ends to overlap in the groove.
� INCORRECT
� CORRECT
● Position the piston ring gaps as shown. Before
inserting the piston into its cylinder, check that the
gaps are properly positioned.
⑤
2nd ring and lower side rail
⑥
Upper side rail
⑦
1st ring and spacer
piston rings differ in
into the oil ring groove,
EX
⑤
⑦
IN
①
②
⑥
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