Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Side Clearance New Wear Limit
Compression Ring 0.02 - 0.08 mm 0.10 mm
Oil Scraper ring 0.02 - 0.08 mm 0.10 mm
End Gap New Wear Limit
1. Compression Ring 0.35 - 0.50 mm 1.0 mm
2. Compression Ring 0.50 - 0.70 mm 1.4 mm
Oil Scraper Ring 0.25 - 0.50 mm 0.8 mm