Piston Ring, Engine

PISTON RING END GAP

First Compression Ring 0.15-0.36 mm (0.006-0.014 in)
Second Compression Ring 0.48-0.74 mm (0.0188-0.0291 in)
Oil Control Ring 0.25-0.77 mm (0.0098-0.0303 in)

PISTON RING TO GROOVE CLEARANCE

First Compression Ring 0.04-0.086 mm (0.002-0.0033 in)
Second Compression Ring 0.04-0.08 mm (0.002-0.0031 in)
Oil Control Ring 0.07-0.095 mm (0.0028-0.0037 in)