Piston Ring, Engine

PISTON RING GAP
Compression Ring No. 1 0.20 - 0.35 mm (0.007 - 0.013 inch)
Compression Ring No. 2 0.20 - 0.40 mm (0.007 - 0.015 inch)
PISTON RING WIDTH
Compression Rings 1.5 mm (0.059 inch)
Oil Ring (Steel Rails) 3.5 mm (0.137 inch)