When your engine was made brand new in the factory, the cylinder was honed. Honing is a process of conditioning the surface of the cylinder wall to help with lubrication of the piston ring(s) during operation. Honing creates fine crosshatch imperfections on the surface of the cylinder bore.

How do I know if my cylinder needs a honing?

If you can still see the original hone marks (cross-hatching) then you likely will not need to hone the cylinder. If those cross hatches have worn down, you will need to have the cylinder honed to allow proper lubrication of the piston ring.

How much does honing a cylinder remove?

The amount of Material Removal when Honing(abrasive flow machining) can be controlled to remove as little as . 001” and will depend on target set by customer. The rougher the starting surface finish is, the more material removal will be needed to achieve the best finish possible.”