Piston Ring, Engine

Piston Ring
Groove Clearance - Top Ring 0.04-0.08 mm (0.0016-0.0031 in)
Groove Clearance - 2nd Ring 0.03-0.07 mm (0.0012-0.0028 in)
Groove Clearance - Oil Ring 0.06-0.15 mm (0.0024-0.0059 in)
End Gap - Top Ring 0.15-0.30 mm (0.0059-0.0118 in)
End Gap - 2nd Ring 0.30-0.50 mm (0.0118-0.0197 in)
End Gap - Oil Ring 0.20-0.70 mm (0.0079-0.0276 in)