Piston Ring

SIDE GROOVE CLEARANCE:

Top Ring:
Standard 0.508 - 1.524 mm (0.02 - 0.06 inch)
Service Limit (maximum) 0.107 mm (0.0042 inch)

2nd Ring:
Standard 1.016 - 2.032 mm (0.04 - 0.08 inch)
Service Limit (maximum) 0.107 mm (0.0042 inch)

Oil Ring:
Standard 0.508 - 2.032 mm (0.02 - 0.07 inch)
Service Limit (maximum) 0.508 - 2.032 mm (0.02 - 0.008 inch)

END GAP:

Top Ring:
Standard 0.25 - 0.40 mm (0.010 - 0.016 inch)
Service Limit (maximum) 1.524 - 0.880 mm (0.060 - 0.035 inch)

2nd Ring:
Standard 0.46 - 0.66 mm (0.018 - 0.026 inch)
Service Limit (maximum) 1.524 - 0.880 mm (0.060 - 0.035 inch)

Oil Ring:
Standard 0.38 - 1.27 mm (0.015 - 0.050 inch)
Service Limit (maximum) 0.23 - 1.65 mm (0.009 - 0.065 inch)