Piston Ring, Engine

GENERAL SPECIFICATIONS
Piston Ring End Gap - First Compression Ring 0.20-0.40 mm 0.008-0.016 inch
Piston Ring End Gap - Second Compression Ring 0.35-0.55 mm 0.014-0.022 inch
Piston Ring End Gap - Oil Control Ring - Rails, 0.25-0.76 mm 0.010-0.030 inch
Piston Ring to Groove Clearance - First Compression Ring, 0.04-0.08 mm 0.0015-0.0031 inch
Piston Ring to Groove Clearance - Second Compression Ring, 0.030-0.069 mm 0.0012-0.0027 inch
Piston Ring to Groove Clearance - Oil Control Ring, 0.090-0.106 mm 0.0035-0.0042 inch
Piston Ring Thickness - First Compression Ring, 1.170-1.190 mm 0.0461-0.0469 inch
Piston Ring Thickness - Second Compression Ring, 1.471-1.490 mm 0.0579-0.0587 inch
Piston Ring Thickness - Oil Control Ring - Rail - Maximum, 0.43 mm 0.0169 inch
Piston Ring Thickness - Oil Control Ring - Spacer, 1.574-1.651 mm 0.0620-0.0650 inch