Piston Ring, Engine

Piston Ring End Gap
First Compression Ring 0.30-0.50 mm (0.0118-0.0196 in)
Second Compression Ring 0.30-0.50 mm (0.0118-0.0196 in)
Oil Control Ring 0.4-1.4 mm (0.00013-0.0551 in)
Piston Ring to Groove Clearance
First Compression Ring 0.02-0.06 mm (0.00079-0.00024 in)
Second Compression Ring 0.02-0.06 mm (0.00079-0.00024 in)
Oil Control Ring 0.02-0.06 mm (0.00079-0.00024 in)
Piston Ring Thickness
First Compression Ring 1.5 mm (0.0590 in)
Second Compression Ring 1.5 mm (0.0590 in)
Oil Control Ring 3.0 mm (0.1181 in)