Piston Ring, Engine

Piston top ring end gap 0.200-0.450 mm (0.008-0.018 in)
Piston bottom ring end gap 0.450-0.700 mm (0.018-0.028 in)
Piston top ring groove width 1.64-1.66 mm (0.0645-0.0654 in)
Piston bottom ring groove width 1.79-1.81 mm (0.0705-0.0713 in)
Piston oil ring groove width 3.5-3.53 mm (0.1378-0.1399 in)
Piston top ring width 1.578-1.598 mm (0.062-0.063 in)
Piston bottom ring width 1.728-1.74 mm (0.068-0.069 in)
Piston top ring-to-groove clearance 0.050-0.082 mm (0.002-0.003 in)
Piston bottom ring-to-groove clearance 0.050-0.082 mm (0.002-0.003 in)