Piston Ring: Specifications

Piston Ring End Gap Top Ring (Standard) 0.20-0.35 mm (0.0079-0.0137 inch)
Top Ring (Maximum Limit) 0.7 mm (0.0275 inch)
Lower Ring (Standard) 0.20-0.35 mm (0.0070-0.0137 inch)
Lower Ring (Maximum Limit) 0.7 mm (0.0275 inch)
Oil Ring (Standard) 0.2-0.7 mm (0.0079-0.0275 inch)
Oil Ring (Maximum Limit) 1.7 mm (0.0669 inch)
Piston Ring Groove Clearance Upper Compression Ring 0.03-0.07 mm
(0.0012-0.0027 inch)
Lower Compression Ring 0.02-0.06 mm (0.0008-0.0023 inch)