Piston Ring, Engine

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

PISTON RING SIDE CLEARANCE
Top and Second Compression Ring 0.04-0.08 mm (0.0016-0.0031 inch)
Oil Ring (Steel Rails 0.038-0.184 mm (0.0015-0.0073 inch)

PISTON RING WIDTH
Top Compression Ring 1.17-1.19 mm (0.0461-0.0469 inch)
2nd Compression Ring (Micro-Napier) 1.47-1.49 mm (0.058-0.059 inch)
Oil Control (Steel Rails) 0.445-0.470 mm (0.0176-0.0186 inch)