Piston Ring, Engine

Piston Ring End Gap
First Compression Ring 0.25-0.46 mm 0.010-0.018 inch
Second Compression Ring 0.58-0.84 mm 0.023-0.033 inch
Oil Control Ring 1 0.254-0.762 mm 0.010-0.030 inch
Piston Ring to Groove Clearance
First Compression Ring 0.033-0.079 mm 0.0013-0.0031 inch
Second Compression Ring 0.033-0.079 mm 0.0013-0.0031 inch
Oil Control Ring 1 0.023-0.201 mm 0.0009-0.0079 inch
Piston Ring Thickness
First Compression Ring 1.176-1.197 mm 0.0463-0.0471 inch
Second Compression Ring 1.476-1.497 mm 0.0581-0.0589 inch
Oil Control Ring 1.854-2.007 mm 0.073-0.079 inch