Piston Ring: Specifications

Piston Ring
End gap
Keystone 0.29 - 0.55 mm (0.011 - 0.021 inch)
Intermediate compression 1.40 - 1.66 mm (0.055 - 0.065 inch)
Oil control 0.24 - 0.50 mm (0.009 - 0.019 inch)
Ring groove width (measured over 2.08 mm (0.082 inch) gauge pins)
Upper limit 94.469 mm (3.719 inch)
Replacement limit 94.290 mm (3.712 inch)