Piston Ring, Engine
Piston RingsEnd Gap - Top - Production 0.2-0.35 mm (0.008-0.014 inch)
End Gap - Top - Service 0.6 mm (0.024 inch)
End Gap - Second - Production 0.4-0.55 mm (0.0016-0.022 inch)
End Gap - Second - Service 0.7 mm (0.028 inch)
End Gap - Oil - Production 0.2-0.7 mm (0.008-0.028 inch)
End Gap - Oil - Service 0.8 mm (0.031 inch)
First Compression Ring - Production 02-0.35 mm (0.008-0.014 inch)
First Compression Ring - Service 0.6 mm (0.024 inch)
Second Compression Ring 0.4-0.055 mm (0.0016-0.0022 inch)
Second Compression Ring - Service 0.7 mm (0.028 inch)
Oil Control Ring - Production 0.2-0.7 mm (0.008-0.028 inch)
Oil Control Ring - Service 0.8 mm (0.031 inch)
Piston Ring-to-Groove Clearance - Top - Production 0.055-0.08 mm (0.0022-0.0031 inch)
Piston Ring-to-Groove Clearance - Top - Service 0.15 mm (0.006 inch)
Piston Ring-to-Groove Clearance - Second - Production 0.03-0.055 mm (0.0012-0.0022 inch)
Piston Ring-to-Groove Clearance - Second - Service 0.13 mm (0.005 inch)
First Compression Ring - Production 0.055-0.08 mm (0.0022-0.0031 inch)
First Compression Ring - Service 0.13 mm (0.005 inch)
Second Compression Ring - Production 0.03-0.055 mm (0.0012-0.0022 inch)
Second Compression Ring - Service 0.13 mm (0.005 inch)
First Compression Ring Height 1.2 mm (0.05 inch)
First Compression Width 3.1 mm (0.12 inch)
Second Compression Height 1.2 mm (0.05 inch)
Second Compression Width 3.4 mm (0.13 inch)