PISTON RINGS IN CHROME PLATED CYLINDER LINERS Back
Chrome plated cylinder liners are being used in increasing amounts both by original equipment manufacturers, and by aftermarket sources*. CAUTION Chrome plated rings should not under any circumstances, be installed in chrome plated liners. Catastrophic destruction will result. Plain cast iron-manganese phosphate coated, or molybdenum rings may be used.

It is normally difficult to detect visually in a used cylinder if it is chrome plated or not.

If any doubt exists, a solution of copper sulfate (CuSO4), which can be purchased at any drugstore or chemical supply house should be applied with a cotton swab to an area of the liner. If the liner is not plated, a copper color will appear. If it is chrome plated no change will take place.

NEVER USE CHROME IN CHROME

* Cylinders are normally chrome plated for two reasons. To increase service life or to re-furbish worn liners.