Piston Ring, Engine

Piston Ring End Gap
First Compression Ring 0.25-0.46 mm (0.010-0.018 in)
Second Compression Ring 0.58-0.84 mm (0.023-0.033 in)
Oil Control Ring 0.254-0.762 mm (0.010-0.030 in)
Piston Ring to Groove Clearance
First Compression Ring 0.033-0.079 mm (0.0013-0.0031 in)
Second Compression Ring 0.033-0.079 mm (0.0013-0.0031 in)
Oil Control Ring 0.023-0.201 mm (0.0009-0.0079 in)
Piston Ring Thickness
First Compression Ring 1.176-1.197 mm (0.0463-0.0471 in)
Second Compression Ring 1.1476-1.497 mm (0.0581-0.0589 in)
Oil Control Ring 1.854-2.007 mm (0.073-0.079 in)