Piston Ring, Engine

Piston ring
Side clearance
No.1 ring 0.04 - 0.085mm (0.0016 - 0.0033in) (0.1 mm (0.0039in))
No.2 ring 0.04 - 0.085mm (0.0016 - 0.0033in) (0.1 mm (0.0039in))
Oil ring 0.08 - 0.175mm (0.0031 - 0.0069in)
End gap
No. 1 ring 0.15 - 0.30mm (0.0059 - 0.0118in) (1.0mm (0.0394in))
No. 2 ring 0.35 - 0.50mm (0.0138 - 0.0197in) (1.0mrn (0.0394in))
Oil ring 0.20 - 0.70mm (0.0079 - 0.0276in (1.0mm (0.0394in))