Piston Ring - Side Clearance

PISTON RING SIDE CLEARANCE

Side clearance:
Top ring ............0.040 - 0.080 mm (0.0016 - 0.0031 inch)
2nd ring ............0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Oil ring ............0.015 - 0.050 mm (0.0006 - 0.0020 inch)

Maximum limit of side clearance:
Top ring ............0.11 mm (0.0043 inch)
2nd ring ............0.1 mm (0.004 inch)

If out of specification, replace piston ring.

If clearance exceeds maximum limit with new ring, replace piston.