10. Repeat this process with the other ring. If either ring exceeds the tolerance at either checking point, replace both the rings.

11. If the old rings are used, it will not be necessary to hone the cylinder. If new rings are fitted, it will be required to hone the cylinder enough to remove the glaze from the walls. Failure to do this will result in the rings taking an excessive period to seat, or perhaps not at all.

12. The correct procedure for honing a cylinder is to rapidly move the hone back and forth while it is turning. This results in a pattern called -crosshatching.- The crosshatching is correct when the small scratches made by the movement of the hone are at right angles to each other.

13. While honing, be careful not to remove excessive material from the cylinder. The idea is only to remove the oil glaze which has been baked on the cylinder walls due to the heat of combustion.

14. Also, after honing, check the end gap of the new rings as described in Paragraph 4 of this Section. Since the rings are not marked, this will assure you that the rings you have are the correct ones for the piston you are using.

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