Piston Ring, Engine

Piston Rings

Piston Ring End Gap - First Compression Ring 0.20-0.35 mm (0.008-0.014 in)
Piston Ring End Gap - Second Compression Ring 0.35-0.55 mm (0.014-0.022 in)
Piston Ring End Gap - Oil Control Ring - Rails 0.25-0.75 mm (0.010-0.030 in)
Piston Ring to Groove Clearance - First Compression Ring 0.04-0.08 mm (0.0015-0.0031 in)
Piston Ring to Groove Clearance - Second Compression Ring 0.030-0.069 mm (0.0012-0.0027 in)
Piston Ring to Groove Clearance - Oil Control Ring 0.058-0.207 mm (0.0023-0.0081 in)
Piston Ring Thickness - Upper First Compression Ring 1.170-1.190 mm (0.0461-0.0469 in)
Piston Ring Thickness - Upper Second Compression Ring 1.471-1.490 mm (0.0579-0.0587 in)
Piston Ring Thickness - Oil Control Ring - Rail - Maximum 0.473 mm (0.0186 in)
Piston Ring Thickness - Oil Control Ring - Spacer 0.929-1.006 mm (0.0366-0.0396 in)