Piston Ring, Engine

Piston ring end gap - top 0.15-0.30 mm (0.006-0.012 inch)
Piston ring end gap - intermediate 0.25-0.50 mm (0.0098-0.0197 inch)
Piston ring end gap - oil control 0.15-0.65 mm (0.0059-0.0256 inch)
Piston ring groove width - top 1.52-1.54 mm (0.0598-0.0606 inch)
Piston ring groove width - intermediate 1.52-1.54 mm (0.0598-0.0606 inch)
Piston ring groove width - oil control 3.030-3.056 mm (0.1193-0.1203 inch)
Piston ring width - top and intermediate 1.50-1.48 mm (0.0590-0.0582 inch)
Piston ring-to-groove clearance - top 0.020-0.060 mm (0.0008-0.0020 inch)
Piston ring-to-groove clearance - intermediate 0.020-0.060 mm (0.0008-0.0020 inch)