Piston Ring, Engine

Upper Ring:
End Gap 0.30 - 0.45 mm (0.012 - 0.018 inch)
Wear Limit 0.8 mm (0.031 inch)
Side Groove Clearance 0.05 - 0.09 mm (0.002 - 0.0035 inch)
Maximum Clearance 0.10 mm (0.004 inch)

Intermediate Ring:
End Gap 0.25 - 0.40 mm (0.010 - 0.016 inch)
Wear Limit 0.8 mm (0.031 inch)
Side Groove Clearance 0.02 - 0.06 mm (0.0007 - 0.002 inch)
Maximum Clearance 0.10 mm (0.004 inch)

Oil Control Ring:
End Gap 0.30 - 0.90 mm (0.012 - 0.035 inch)
Wear Limit 1.0 mm (0.039 inch)

NOTE: Oil control ring-three piece oil ring side rails must be free to rotate after assembly.