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 (0.55 - 0.65 inch)
Piston ring end gap - oil control 0.24 - 0.50 mm (0.009 - 0.019 inch)
Piston ring groove width (measured over 2.03 mm (0.08 inch) gauge pins) Upper limit - 94.030 mm (3.702 inch)
Piston ring groove width (measured over 2.03 mm (0.08 inch) gauge pins) Replacement limit - 93.854 mm (3.695 inch)