Piston Ring, Engine

PISTON RING GAP & GROOVE CLEARANCE

Ring Gap-Top Compression Ring 0.20-0.36 mm (0.008-0.014 in.)
Ring Gap-2nd Compression Ring (Micro-Napier) 0.20-0.40 mm (0.0078-0.0157 in.)
Ring Gap-Oil Control (Steel Rails) 0.25-0.76 mm (0.010-0.030 in.)