Piston Ring, Engine
PISTON RING GAP & GROOVE CLEARANCERing 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.
Top and Second Compression Ring 0.04-0.08 mm (0.0016-0.0031 in.)
Oil Ring (Steel Rails) 0.038-0.184 mm (0.0015-0.0073 in.)