Piston Ring, Engine

PISTON RING END GAP

First Compression Ring 0.18-0.39 mm (0.007-0.015 in)
Second Compression Ring 0.48-0.74 mm (0.019-0.029 in)
Oil Control Ring 0.25-0.74 mm (0.010-0.029 in)

PISTON RING TO GROOVE CLEARANCE

First Compression Ring 0.03-0.076 mm (0.001-0.003 in)
Second Compression Ring 0.04-0.078 mm (0.002-0.003 in)
Oil Control Ring 0.09 mm (0.004 in)