Piston Ring, Engine

Piston ring-to-groove clearance - top 0.030-0.050 mm (0.0012-0.0020 inch)
Piston ring-to-groove clearance - intermediate 0.030-0.080 mm (0.0012-0.0031 inch)
Piston ring groove width - oil control 3.030-3.050 mm (0.1193-0.1201 inch)
Piston ring groove width - top 1.53-1.55 mm (0.0602-0.0610 inch)
Piston ring groove width - intermediate 1.52-1.54 mm (0.0598-0.0606 inch)
Piston ring end gap - top 0.13-0.28 mm (0.0051-0.0110 inch)
Piston ring end gap - intermediate 0.25-0.40 mm (0.0098-0.0158 inch)
Piston ring end gap - oil control 0.15-0.65 mm (0.0059-0.0256 inch)