Piston Ring, Engine

Piston Ring
Ring-to-groove clearance (J32A3)
Top
Standard or New 0.055-0.080 mm (0.0022-0.0031 in.)
Service Limit 0.15 mm (0.006 in.)
Second
Standard or New 0.030-0.055 mm (0.0012-0.0022 in.)
Service Limit 0.13 mm (0.005 in.)
Ring-to-groove clearance (J35A8)
Top
Standard or New 0.065-0.090 mm (0.0026-0.0035 in.)
Service Limit 0.15 mm (0.006 in.)
Second
Standard or New 0.030-0.055 mm (0.0012-0.0022 in.)
Service Limit 0.13 mm (0.005 in.)
Ring end gap
Top
Standard or New 0.20-0.35 mm (0.008-0.014 in.)
Service Limit 0.60 mm (0.024 in.)
Second
Standard or New 0.40-0.55 mm (0.016-0.022 in.)
Service Limit 0.70 mm (0.028 in.)
Oil
Standard or New 0.20-0.70 mm (0.008-0.028 in.)
Service Limit 0.80 mm (0.031 in.)