Piston Ring, Engine

Piston ring
Ring-to-groove clearance
Top
Standard or new 0.050-0.075 mm (0.0020-0.0030 in.)
Service Limit 0.13 mm (0.005 in.)
Second
Standard or new 0.050-0.075 mm (0.0020-0.0030 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 0.20-0.50 mm (0.008-0.020 in.)
Service Limit 0.80 mm (0.031 in.)