Piston Ring, Engine

Piston Rings
Ring end gap
Top 0.15-0.30 mm (0.0006-0.0012 inch)
Intermediate 0.25-0.50 mm (0.0098-0.0197 inch)
Oil control 0.15-0.65 mm (0.0059-0.0256 inch)
Ring groove width
Top 1.53-1.55 mm (0.0602-0.0610 inch)
Intermediate 1.52-1.54 mm (0.0598-0.0606 inch)
Oil control 3.030-3.050 mm (0.1193-0.1201 inch)
Ring width - top and intermediate 1.47-1.50 mm (0.0579-0.0591 inch)
Ring-to-groove clearance
Top 0.03-0.08 mm (0.0012-0.0032 inch)
Intermediate 0.02-0.07 mm (0.0007-0.0028 inch)