Use a cylinder hone and drill to prepare the cylinder walls. First clean the walls, then lubricate with diesel fuel or engine oil before honing.

Vary the drill speed and up/down motions to achieve a 30 degree cross hatch pattern on the walls.

This process removes any glazing and restores the correct surface finish needed for the piston rings to seal.

Make sure to clean the cylinder walls and remove all grit created by the honing process.