Piston Ring, Engine

Piston Rings
Piston Ring End Gap - First Compression Ring 0.20-0 40 mm (0.008-0.016 inch)
Piston Ring End Gap - Second Compression Ring 0 35-0 55 mm (0.014-0.022 inch)
Piston Ring End Gap - Oil Control Ring - Rails 0.25-0.76 mm (0.010-0.030 inch)
Piston Ring to Groove Clearance - First Compression Ring 0.04-0 08 mm (0.0015-0.00.31 inch)
Piston Ring to Groove Clearance - Second Compression Ring 0.030-0 069 mm (0.0012-0.0027 inch)
Piston Ring to Groove Clearance - Oil Control Ring 0 090-0 106 mm (0 0035-0.0042 inch)
Piston Ring Thickness - - First Compression Ring 1.170-1.190 mm (0.0461 -0.0469 inch)
Piston Ring Thickness - Second Compression Ring 1.471-1 490 mm (0.0579-0.05,37 inch)
Piston Ring Thickness-Oil Control Ring - Rail - Maximum 0.43 mm (0.0169 inch),
Piston Ring Thickness - Oil Control Ring - Spacer 1 574-1.651 mm (0.0620-0.0650 inch)