Piston

Piston
Clearance 0.02 - 0.04 mm (0.0008 - 0.0016 in.)

New bore size = measured outer diameter of piston + 0.02 - 0.04 mm (0.0008 - 0.0016 in.)[clearance] - 0.01 mm (0.0004 in.)[for horning]

Calculate the difference between the cylinder bore inner diameter and the piston outer diameter.

Piston-to-cylinder clearance 0.02 - 0.04 mm (0.0008 - 0.0016 in.)