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GM Water Pump

GM water pump refers to the simple centrifugal pump of a General Motor’s engine cooling system. The automobile water pump is camshaft-driven pump that facilitates the circulation of the engine coolant throughout the engine cooling system. In some sense, the water pump is the heart of the engine cooling system. The water pump is connected to the camshaft pulley via a rubber engine belt. A clutch-thermostat mechanism regulates the operation of the water pump. When the engine temperature drops below the ideal or optimal temperature, the thermostat automatically disengages the clutch. Consequently, the water pump stops pumping the engine coolant.

As the engine regains optimal temperature level, the thermostat automatically re-engages the GM water pump to the camshaft of the engine. Thus, the engine coolant starts to circulate again. The water pump operates by creating a vacuum state inside its structure. The water pump has vane that expel air out of the pump as they rotate. Consequently, a vacuum state is created inside the water pump. The liquid coolant from the reservoir then rushes inside the water pump to fill the void. However, the coolant is momentarily contained within the pump because the vanes force it into the engine block. The atmospheric pressure forces the engine coolant to rush into the water pump.

From the water pump, the liquid coolant is then forced into the labyrinthine coolant channels inside the engine block. The coolant absorbs excess thermal energy from the engine. The coolant then exits the engine block and enters the radiator. As the name suggests, the radiator is the component that radiates the excess thermal energy form the engine, thereby dissipating it. Inside the radiator is a long-winding tube coil. This coil arrangement increases the surface area exposure of the tube, making it more efficient in dissipating heat. The radiator fan facilitates heat dissipation by drawing hot air from the immediate vicinity of the radiator.

GM Water Pump - GM Water Pumps


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