ENGINE 3-57
PISTON RING
• Install the oil ring first, the 2nd ring second, and the 1st ring
last.
NOTE:
* The 1st
1 and 2nd
2 piston rings differ in shape.
* The 1st and 2nd piston rings should be installed with the mark
facing up.
• First, install a spacer
3 into the oil ring groove, 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.
"
A
INCORRECT
B
CORRECT
• Position the piston ring gaps as shown. Before inserting the
piston into its cylinder, check that the gaps are properly posi-
tioned.
A
Exhaust side
B
Intake side
5
2nd ring and lower side rail
6
Upper side rail
7
1st ring and spacer
When installing the spacer, be careful not to allow its
two ends to overlap in the groove.
120˚
120˚120˚
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