Piston Ring

End Gap
With 82.4 mm (3.2441 inch) gauge.
Top Ring 0.100-0.250 mm (0.0039-0.0098 inch)
Second Ring 0.270-0.420 mm (0.0106-0.0165 inch)
Oil Ring 0.150-0.650 mm (0.0059-0.0255 inch)
Service Limit
Top Ring 0.500 mm (0.0196 inch)
Second Ring 0.650 mm (0.0255 inch)
Oil Ring 0.900 mm (0.0354 inch)

Ring Clearance, Minimum-Maximum
Top Ring 0.040-0.075 mm (0.0015-0.0029 inch)
Second Ring 0.040-0.085 mm (0.0015-0.0033 inch)
Oil Ring
Nominal Snug-Fit
Maximum (Limit) 0.10 mm (0.0039 inch)