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Show Watch Your Water Pump to Prevent Motor Heat Of the Hi reasons for motor heating, perhaps one of the most obscure aud least thought of is the small pin that holds the paddle wheel on the water pump to the shaft. This is a frequent reason for engine overheating, and because be-cause of its very obscureness, is one of the reasons for this series of articles. As everyone knows, the water pump is attached to the water pump shaft. Within this pump is a. paddle wheel that assists in circulating the water from the radiator entirely through the water passage system. A small steel pin holds this paddle wheel fas; to the pump, and many times, after some months of usage, this pin becomes worn or rusted, and shears off as smoothly as if cut by a knife. The pump at once becomes inoperative, the water does not circulate and the terrific ter-rific heat of the engine soon boils away the water that remains in the radiator. Here again the heat indicator indi-cator on your car immediately tells the story, as the vapor temperature of the boiling water in the radiator will warn the motorist, through this instrument, instru-ment, that he must investigate at once, or suffer the penalty: a large garage bill. |