Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring End Gap new End play Wear limit
Compression Rings 0.20 to 0.40 mm 0.8 mm
Oil Scraper ring 0.25 to 0.50 mm 0.8 mm
Piston ring side clearance New Wear limit
Compression ring 0.06 to 0.09 mm 0.20 mm
Oil Scraper ring 0.03 to 0.06 mm 0.15 mm