Piston Ring

DIMENSIONS
Compression Ring Groove Clearance
Production-Top Groove 0.508 - 1.524 mm (0.02 - 0.06 inch)
Production-2nd Groove 1.016 - 2.032 mm (0.04 - 0.08 inch)
Service Limit 0.107 mm (0.0042 inch) max
Compression Ring Gap
Production-Top 0.25 - 0.40 mm (0.010 - 0.016 inch)
Production-2nd 0.46 - 0.66 mm (0.018 - 0.026 inch) max
Service Limit 1.524 - 0.88 mm (0.06 - 0.035 inch) max
Oil Ring Groove Clearance
Production 0.508 - 0.17 mm (0.02 - 0.07 inch)
Service Limit 0.508 - 2.032 mm (0.02 - 0.08 inch) max
Oil Ring Gap
Production 0.38 - 1.27 mm (0.015 - 0.050 inch)
Service Limit 0.23 - 1.65 mm (0.009 - 0.065 inch) max