Piston Ring, Engine

GENERAL SPECIFICATIONS

Piston Ring End Gap
First Compression Ring 0.30 - 0.50 mm (0.0118 - 0.0196 inch)
Second Compression Ring 0.30 - 0.50 mm (0.0118 - 0.0196 inch)
Oil Control Ring 0.4 - 1.4 mm (0.00013 - 0.0551 inch)

Piston Ring to Groove Clearance
First Compression Ring 0.02 - 0.06 mm (0.00079 - 0.0024 inch)
Second Compression Ring 0.02 - 0.04 mm (0.00079 - 0.0024 inch)
Oil Control Ring 0.02 - 0.04 mm (0.00079 - 0.0024 inch)

Piston Ring Thickness
First Compression Ring 1.5 mm (0.0590 inch)
Second Compression Ring 1.5 mm (0.0590 inch)
Oil Control Ring 3.0 mm (0.1181 inch)