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Show Cooling System in Need of Thorough Cleansing To give a thorough cleansing to the cooling system, disconnect the short section of hose between bottom of the radiator and pump, connect the garage hose to the water pump and a longer section of hose to the bottom pipe of the radiator and lead It outside of the truck. Plug the overflow tube with cork or rubber stopper. Turn on the water after starting the engine, and It ahould be pumped through the water Jacket and radiator till It runs clear. If the rudlator and water Jacket of the engine are found to contain considerable con-siderable scale or rust. It may be necessary nec-essary to flush the system out with a solution of hot water and washing soda and It may even be desirable to allow the washing soda solution to remain re-main In the water system overnight to make sure the scale Is loosened. Scientific American. |