Piston Ring, Engine
PISTON RINGSPiston Ring Gap:
Top Compression Ring 0.30 - 0.45 mm (0.0118 - 0.0177 in.)
Second Compression Ring 0.65 - 0.90 mm (0.0256 - 0.0354 in.)
Oil Control (Steel Rails) 0.20 - 0.71 mm (0.00787 - 0.02795 in.)
Wear Limit - Top Compression Ring 0.68 mm (0.027 in.)
Wear Limit - 2nd Compression Ring 1.50 mm (0.059 in.)
Wear Limit - Oil Control Steel Rails 1.50 mm (0.059 in.)
Piston Ring Side Clearance:
Top Compression Ring 0.020 - 0.068 mm (0.0078 - 0.00267 in.)
2nd Compression Ring 0.020 - 0.058 mm (0.0078 - 0.00228 in.)
Oil Rings 0.012 - 0.178 mm (0.0005 - 0.0070 in.)
Wear Limit - Top and 2nd Ring 0.080 mm (0.003 in.)
Wear Limit Oil Ring Pack 0.200 mm (0.0078 in.)