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How to Polish Aluminum Valve Covers

by Tyson Simmons

Are your aluminum valve covers looking dim and dirty? Would you like the make them shine? In this article, we will discuss the easy way to clean and polish valve covers.

If the valve covers are not in easy reach, remove them from the motor and place them on clean cloth.

Scrub all buildup on the covers using steel wool. Begin in the center and work outward to remove it all and prevent missing spots. To clean thicker buildup, you may have to use a steel brush to scrub the surface.

To get into cracks and crevices, soak them with a lime-cleaning agent. Allow the liquid to sit for several minutes, and then scrub it thoroughly with a toothbrush.

After finishing cleaning the surface and allowing it to dry, begin applying aluminum polish to the covers with a microfiber rag. Don't be afraid to use plenty of polish, because valve covers are made of more porous aluminum and the polish will soak in.

Work the polish around until all residue has disappeared.

Rub the entire surface with a very slightly dampened rag to bring out a full shine. Do this as gently as possible so that you don't pull up the polish, but you remove the bits of residue covering it.


  • Take your time when polishing. Working with small spots at a time will bring out a better and more even shine.


  • Use extreme caution when working around toxic chemicals. Always keep them away from children.

Items you will need

About the Author

Tyson Simmons started writing professionally in 2005 and has worked for multiple media firms and publications, including "EQ Automotive" and various websites. He mainly covers the automotive and technical fields. Simmons has an English writing certification from Uintah Basin Applied Technology College and is also A+ computer repair certified. He is pursuing a Bachelor of Science in English writing at Utah State University.

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