Piston Ring, Engine

Piston ring
Ring-to-groove clearance
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 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.)
Ring groove width
Top
Standard or New 1.240-1.250 mm (0.0488-0.0492 in.)
Service Limit 1.27 mm (0.050 in.)
Second
Standard or New 1.220-1.230 mm (0.0480-0.0484 in.)
Service Limit 1.25 mm (0.049 in.)
Oil
Standard or New 2.805-2.825 mm (0.1104-0.1112 in.)
Service Limit 2.85 mm (0.112 in.)