Piston Ring, Engine

Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Production 0.31-0.87 mm (0.0122-0.034 inch)
Piston Ring End Gap - Oil Control Ring - Measured in Cylinder Bore - Service 0.31-0.94 mm (0.0122-0.037 inch)
Piston Ring to Groove Clearance - First Compression Ring - Production 0.04-0.08 mm (0.00157-0.0031 inch)
Piston Ring to Groove Clearance - First Compression Ring - Service 0.04-0.08 mm (0.00157-0.0031 inch)
Piston Ring to Groove Clearance - Second Compression Ring - Production 0.039-0.079 mm (0.0015-0.0031 inch)
Piston Ring to Groove Clearance - Second Compression Ring - Service 0.039-0.079 mm (0.0015-0.0031 inch)
Piston Ring to Groove Clearance - Oil Control Ring - Production 0.015-0.199 mm (0.0006-0.0078 inch)
Piston Ring to Groove Clearance - Oil Control Ring - Service 0.015-0.199 mm (0.0006-0.0078 inch)