Piston Ring, Engine

Ring Groove Clearance
No.1 0.020 - 0.070 mm
No.2 0.020 - 0.060 mm
Oil (side rail) 0.070 - 0.150 mm

Standard End Gap
No.1 0.30 - 0.40 mm
No.2 0.47 - 0.62 mm
Oil (side rail) 0.10 - 0.35 mm

Maximum End Gap
No.1 0.89 mm
No.2 1.37 mm
Oil (side rail) 0.73 mm