Piston Ring, Engine

RING GAP:

Top Upper Compression Ring:
Standard 0.23 - 0.52 mm (0.009 - 0.020 inch)
Wear Limit 0.8 mm (0.031 inch)

Intermediate Compression Ring:
Standard 0.49 - 0.78 mm (0.019 - 0.031 inch)
Wear Limit 1.0 mm (0.039 inch)

Oil Control (Steel Ring) Ring:
Standard 0.23 - 0.66 mm (0.009 - 0.026 inch)
Wear Limit 1.0 mm (0.039 inch)

RING SIDE CLEARANCE:
Compression Ring:
Standard 0.025 - 0.065 mm (0.0010 - 0.0026 inch)
Wear Limit 0.10 (0.004 inch)
Oil Control (Pack) Ring:
Standard 0.004 - 0.178 mm (0.0002 - 0.0070 inch)

RING WIDTH:
Compression Ring 1.17 - 1.19 mm (0.046 - 0.047 inch)
Oil Control (Pack) Ring 2.854 - 3.008 mm (0.1124 - 0.1184 inch)