Before you start to grind away at the sealing surfaces, you should “seal off” open passages using masking tape, paper towels or rags to keep dirt, carbon, RTV, old gasket material and any stray wire strands from entering important engine areas. Make sure you protect your ears and eyes when using any type of power equipment.
There are two styles of wire wheels that can be used in a die grinder for heavy cleaning such as the removal of carbon, dirt, RTV, paper and old gasket material. A coarse wire wheel (0.014" wire) can be used on cast iron sealing surfaces but shouldn’t be used on aluminum or plastic surfaces. A fine wire wheel (0.006" wire) can be used on both cast iron and aluminum surfaces. Use caution and “feel” when using a wire wheel in a die grinder. You want to preserve the surface finish of the sealing surface so the replacement gasket can seal properly.
A brass hand wire brush can be handy for cleaning RTV from aluminum and plastic valve covers and intake manifolds. The brass will clean the parts safely and will grab RTV and dirt away from the parts. The same goes for nylon or brass rifle type or round brushes. These work well for cleaning out bolt holes.
Tips: Seal off open passages using masking tape, paper towels or rags to keep dirt, carbon, RTV, old gasket material and any stray wire strands from entering important engine areas. Make sure you protect your eyes and ears when using any type of power equipment.
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