Piston Ring, Engine
Piston RingsEnd Gap - Top - Production 0.2-0.35 mm (0.008-0.014 in)
End Gap - Top - Service 0.6 mm (0.024 in)
End Gap - Second - Production 0.4-0.55 mm (0.0016-0.022 in)
End Gap - Second - Service 0.7 mm (0.028 in)
End Gap - Oil - Production 0.2-0.7 mm (0.008-0.028 in)
End Gap - Oil - Service 0.8 mm (0.031 in)
First Compression Ring - Production 0.02-0.35 mm (0.008-0.014 in)
First Compression Ring - Service 0.6 mm (0.024 in)
Second Compression Ring - Production 0.4-0.055 mm (0.0016-0.0022 in)
Second Compression Ring - Service 0.7 mm (0.028 in)
Oil Control Ring - Production 0.2-0.7 mm (0.008-0.028 in)
Oil Control Ring - Service 0.8 mm (0.031 in)
Piston Ring-to-Groove Clearance - Top - Production 0.055-0.08 mm (0.0022-0.0031 in)
Piston Ring-to-Groove Clearance - Top - Service 0.15 mm (0.006 in)
Piston Ring-to-Groove Clearance - Second - Production 0.03-0.055 mm (0.0012-0.0022 in)
Piston Ring-to-Groove Clearance - Second - Service 0.13 mm (0.005 in)
First Compression Ring - Production 0.055-0.08 mm (0.0022-0.0031 in)
First Compression Ring - Service 0.13 mm (0.005 in)
Second Compression Ring - Production 0.03-0.055 mm (0.0012-0.0022 in)
Second Compression Ring - Service 0.13 mm (0.005 in)
First Compression Ring Height 1.2 mm (0.05 in)
First Compression Width 3.1 mm (0.12 in)
Second Compression Height 1.2 mm (0.05 in)
Second Compression Width 3.4 mm (0.13 in)