Piston Ring, Engine

Piston Ring
Groove Clearance 0.030 to 0.070 mm (0.0012 to 0.0028 inch)
End Gap
Standard
No. 1 0.22 to 0.32 mm (0.0087 to 0.0126 inch)
No. 2 0.50 to 0.60 mm (0.0197 to 0.0236 inch)
Oil (Side Rail) 0.10 to 0.35 mm (0.0039 to 0.0138
inch)
Maximum
No. 1 0.89 mm (0.0350 inch)
No. 2 1.35 mm (0.0531 inch)
Oil (Side Rail) 0.73 mm (0.0287 inch)