Service manual

ENG
INSPECTION AND REPAIR
5-20
NOTE:
Before measuring the piston ring side clearan-
ce, eliminate any carbon deposits from the
piston ring grooves and piston rings.
2. Install:
• piston ring
(into the cylinder)
NOTE:
Level the piston ring into the cylinder with the
piston crown.
3. Measure:
• piston ring end gap
Out of specification

Replace the piston
ring.
NOTE:
The oil ring expander spacer’s end gap cannot
be measured. If the oil ring rail’s gap is exces-
sive, replace all three piston rings.
Piston ring side clearance
Top ring
0.02 ~ 0.060 mm (0.0008 ~
0.0024 in)
2nd ring
0.035 ~ 0.070 mm (0.0014 ~
0.0028 in)
Piston ring end gap
Top ring
0.3 ~ 0.45 mm
(0.012 ~ 0.018 in)
2nd ring
0.30 ~ 0.45 mm
(0.012 ~ 0.018 in)