Piston Ring, Engine

Ring Groove Clearance
No.1 0.020 - 0.070 mm
No.2 0.020 - 0.060 mm
Oil 0.03-0.11 mm

Standard End Gap
No.1 0.25 - 0.35 mm
No.2 0.35 - 0.45 mm
Oil (side rail) 0.15 - 0.40 mm

Maximum End Gap
No.1 0.95 mm
No.2 1.05 mm
Oil (side rail) 1.00 mm