FLUSHING'THE RADIATOR

Evening Post, Volume CX, Issue 137, 6 December 1930, Page 27

FLUSHING'THE RADIATOR

ADVISABLE ONCE A MONTH

Most water used in motor-car cooling systems carries a small amount of lime and other substances in solution. Sometimes it carries small quantities of silt or solid matter in suspension. When this mineral or silt-bearing water is heated and circulated through the cooling system it leaves deposits of sludge or mud or a coating of scale, in the cylinder jackets and water passages of the radiator. Also, a certain amount of iron rust is formed in the water jackets and joins with the other impurities in the water, or may accumulate in the jackets and radiator. This mud, scale, or rust interferes with the flow of the lieat from the water into the air that passes through the radiator core. To insure cooling effectiveness, the system should be drained every month and flushed with clear water. In the spring it should be cleaned with a suitable scale and sediment removing compound. Ordinary washing soda dissolved in water will loosen the sediment and scale. The engino may be run with the radiator covered and radiator cap on tight, so the circulating water and chemical is circulated at a boiling temperature for a few minutes. Then remove the drain cocks or hose connections to permit the water to .drain rapidly.' Unless the hose connections are in very good condition, it is advisable to replace them after the operations. .'.:■■ ' Brake adjustments should not be made at the equaliser or rods except by an expert. Usually an adjustment of the brake bands at the wheel is all that is necessary.