COOLING THE ENGINES

Wairarapa Times-Age, 5 January 1939, Page 7

COOLING THE ENGINES

SOME USEFUL HINTS. With the advent of hot weather special attention should be paid to the cooling system on the motor car or truck. Overheating through shortage of water in the radiator, or through a defective fan, might lead to seizure or other serious damage in the engine. The radiator core requires periodical flushing to remove scale and dirt which lodges in the small water passages, and old hosing connections should be renewed before the inside rubber becomes perished and swollen. To flush radiator first drain off water by unscrewing radiator top; then insert nozzle of hose in top opening, and allow water to flow through for a few minutes. Better results may be obtained by forcing water- through the core in the opposite direction to its normal flow. This may be done by removing the lower radiator hose connection and injecting water under pressure in the radiator outlet. If the core has become plugged, fill radiator with a solution of washing soda and water (about 11b of soda to five gallons of water), run the engine slowly for a few and drain off; then flush out thoroughly with hose and fill with clean water.

Do not pour a large quantity of cold water into radiator when water level is low and the engine hot, otherwise cracking of the cylinder head may follow. If the engine is running hot through lack of water, pour a little cold water into radiator slowly, so that the fresh stream may have time to gain heat before it reaches the engine wall channels.

Grease and oil should be kept from fan belt. If belt is loose enough to cause slipping its tension should be adjusted, without making it too tight.