Piston Ring, Engine

Piston ring end gap - top compression 0.29-0.55 mm (0.011-0.021 inch)
Piston ring end gap - intermediate compression 1.40-1.66 mm (0.055-0.065 inch)
Piston ring end gap - oil control 0.24-0.50 mm (0.009-0.019 inch)
Piston ring groove width (measured over 2.08 mm (0.082 inch) gauge pins) Upper limit 94.469 mm (3.7192 inch)
Piston ring groove width (measured over 2.08 mm (0.082 inch) gauge pins) Replacement limit - 94.290 mm (3.7122 inch)