ENGINE 3-99
ENGINE TOP SIDE
PISTON
• Install the piston rings in the order of oil ring, 2nd ring and 1st
ring.
• The first member to go into the oil ring groove is a spacer
1.
After placing the spacer, fit the two side rails
2.
NOTE:
Side designations, top and bottom, are not applied to the spacer
and side rails: Those can be positioned each either way.
"
• Install the 2nd ring
3 and the 1st ring
4.
NOTE:
1st ring and 2nd ring differ in shape.
• 1st ring and 2nd ring have letter “R” marked on the side. Be
sure to bring the marked side to the top when fitting them to
the piston.
• Position the gaps of the three rings as shown. Before inserting
the piston into the cylinder, check that the gaps are so
located.
When installing the spacer, be careful not to allow its
two ends to overlap in the groove.
INCORRECT
CORRECT
1st ring
2nd ring
EX
IN
• 2nd ring
• Lower side
rail
• Upper side
rail
• 1st ring
• Spacer
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