Piston Ring, Engine

Piston ring end gap - top 0.200 - 0.450 mm (0.008 - 0.018 inch)
Piston ring end gap - bottom 0.40 - 0.60 mm (0.016 - 0.024 inch)
Piston ring groove width * top 1.23 - 1.25 mm (0.0484 - 0.0492 inch)
Piston ring groove width * bottom 1.52 - 1.54 mm (0.0598 - 0.0606 inch)
Piston ring groove width * oil ring 3.01 - 3.03 mm (0.1185 - 0.1193 inch)
Piston ring width - top 1.175 - 1.190 mm (0.0463 - 0.0469 inch)
Piston ring width - bottom 1.475 - 1.490 mm (0.0581 - 0.0587 inch)
Piston ring-to-groove clearance - top 0.040 - 0.075 mm (0.0016 - 0.0030 inch)
Piston ring-to-groove clearance - bottom 0.030 - 0.065 mm (0.0012 - 0.0026 inch)