Aluminium parts, such as the engine and gearbox, can be cleaned with paraffin and a stiff brush, and afterwards with petrol. These parts are best cleaned before the enamel is tackled.
Accumulated road dirt and mud must never be rubbed or brushed off dry from enamelled parts as the abrasive nature of the dirt will scratch and dull the surface of the enamel.
Always wash off dirt by means of liberal supplies of water, if possible from a hose pipe, but do not employ a high pressure jet.
The water should be set to run at a slow rate so that it does not penetrate where it can do harm, such as into the brakes or items of the electrical equipment and carburetter.
Use a soft cloth or sponge to mop off the dirt when it is properly loosened by the water.
If water is used from a bucket a little household detergent washing powder (such as " Tide ") may be mixed with the water and will help to remove oil or grease.
Dry off with a leather and polish with one of the many polishes now on the market. Chemico " 49 " (Makers : The County Chemical Co., Ltd., 561, Stratford Road, Shirley, Birmingham) will give a high finish which remains waterproof for quite a good time. Proprietary polishes, however, are not a substitute for cleaning and will not give a proper finish unless the surface is properly cleaned first.
Ordinary metal polishes intended for brass, etc., are harmful to chromium plating, which must be cleaned with special chrome cleaner such as "F.L.P." (Maker : G. H. White, 102, Lowestoft Road, Gorleston, Norfolk.)
In some conditions of climate a deposit resembling rust may be seen on the chromium plated ferrous parts. This is not ordinary rust, but is a salt deposit which if treated at once can be removed readily. It must not, however, be neglected, as this will cause deterioration which will progress rapidly.
Remove any deposit with light application of chrome cleaner.
During damp and rainy weather protect the plated parts by lightly smearing with " Tekall " (Makers : 20th Century Finishes, Ltd., 175-177, Kirkgate, Wakefield.)