Piston Ring, Engine

DIMENSIONS
Piston Ring Groove Clearance:
New:
Compression Rings 0.02-0.08 mm (0.0007-0.0031 inch)
Oil Scraper Ring 0.02-0.08 mm (0.0007-0.0031 inch)
Wear Limit:
Compression Rings 0.10 mm (0.0039 inch)
Oil Scraper Ring 0.10 mm (0.0039 inch)

Piston Ring End Gap:
New:
1st Compression Ring 0.35-0.50 mm (0.1377-0.0196 inch)
2nd Compression Ring 0.50-0.70 mm (0.0196-0.0275 inch)
Oil Scraper Ring 0.25-0.50 mm (0.0098-0.0197 inch)
Wear Limit:
1st Compression Ring 1.0 mm (0.0393 inch)
2nd Compression Ring 1.4 mm (0.0551 inch)
Oil Scraper Ring 0.80 mm (0.0315 inch)