Piston Ring, Engine

Piston Compression Ring End Gap (Production-Top) (Measured in Cylinder Bore) 0.23-0.44 mm (0.009-0.017 inch)
Piston Compression Ring End Gap (Production-2nd) (Measured in Cylinder Bore 0.44-0.70 mm (0.0173-0.0275 inch)
Piston Oil Ring End Gap (Production) (Measured in Cylinder Bore) 0.18-0.75 mm (0.007-0.0295 inch)
Piston Compression Ring End Gap (Service-Top) (Measured in Cylinder Bore 0.23-0.50 mm Maximum (0.009-0.02 inch Maximum)
Piston Compression Ring End Gap (Service-2nd) (Measured in Cylinder Bore 0.44-0.76 mm Maximum (0.0173-0.03 inch Maximum)
Piston Oil Ring End Gap-Service Limit (Measured in Cylinder Bore) 0.18-0.81 mm Maximum (0.007-0.032 inch Maximum)
Piston Compression Ring Groove Clearance (Production-Top) 0.04-0.085 mm (0.00157-0.003346 inch)
Piston Compression Ring Groove Clearance (Production-2nd) 0.04-0.078 mm (0.00157-0.0031 inch)
Piston Oil Ring Groove Clearance (Production) 0.012-0.20 mm (0.0005-0.0078 inch)
Piston Compression Ring Groove Clearance (Service-Top) 0.04-0.078 mm Maximum (0.00157-0.0031 inch Maximum)
Piston Compression Ring Groove Clearance (Service-2nd) 0.04-0.078 mm Maximum (0.00157-0.0031 inch Maximum)
Piston Oil Ring Groove Clearance (Service Limit) 0.012-0.20 mm Maximum (0.0005-0.0078 inch Maximum)