Normal parts cleaning solvents can be used for most purposes.
Use brake or contact cleaner, to clean surfaces where anaerobic or RTV sealants will be applied. This type of solvent does not leave a residue that interferes with sealer cure or adhesion.
Carbon deposits can be emulsified by some spray type gasket removers. Permatex and 3M both have effective products.
Avoid using diesel fuel, gasoline, paint and lacquer thinners or kerosene for parts cleaning purposes. These products can leave an undesirable residue.
Cylinder and lifter bores should be cleaned with a liquid detergent and warm water mixture after honing or polishing. A bristle brush or cotton towel can be used to wash the bores until clean and free of oil, dirt, and abrasive grit.
