Operation CHARM: Car repair manuals for everyone.

Piston Ring, Engine

Piston Ring Ring Width Upper Compression Ring 0.30 - 0.50 Millimeter (mm)
Lower Compression Ring 0.30 - 0.50 Millimeter (mm)
Oil Control Ring 0.40 - 1.40 Millimeter (mm)
Ring Groove Width Upper Compression Ring 1.484 Millimeter (mm)
Lower Compression Ring 1.734 Millimeter (mm)
Oil Control Ring 2.905 Millimeter (mm)