Piston Ring, Engine

Diameter 78.925-78.935 mm (3.1073-3.1077 inch)
Pin Clearance Interference Fit
Pin Diameter 20.004-20.013 mm (0.7876-0.7879 inch)
Piston-to-Cylinder Bore Clearance (Standard) 0.065-0.088 mm (0.0026-0.0035 inch)
Piston-to-Cylinder Bore Clearance (Maximum) 0.10 mm (0.0039 inch)
Ring End Gap - Lower Ring (Maximum) 1.20 mm (0.0472 inch)
Ring End Gap - Lower Ring (Standard) 0.35-0.50 mm (0.0138-0.0197 inch)
Ring End Gap - Oil Ring (Maximum) 1.05 mm (0.0413 inch)
Ring End Gap - Oil Ring (Standard) 0.15-0.40 mm (0.0059-0.0157 inch)
Ring End Gap - Top Ring (Maximum) 1.05 mm (0.0413 inch)
Ring End Gap - Top Ring (Standard) 0.25-0.35 mm (0.0098-0.0138 inch)
Ring Groove Clearance - Lower Compression Ring 0.030-0.070 mm (0.0012-0.0028 inch)
Ring Groove Clearance - Upper Compression Ring 0.030-0.070 mm (0.0012-0.0028 inch)