To ensure proper vehicle performance, your engine must maintain sufficient temperature. A d this is made possible by the cooling system. This system is primarily composed of the radiator and the radiator fan. These two components work together in order to dissipate the heat from the coolant which enters the engine block to absorb the excess heat. The radiator is responsible for providing the frame to spread and seamlessly transfer coolant heat. Meanwhile, the radiator fan is necessary when the car is not running and there is limited supply of incoming air to cool down the radiator. There are actually two types of radiator fan and these are the mechanical and the electric fans. Previous vehicles employ mechanical fans wherein the fan blade is rotated by a belt using a motion of the engine. However, radiator fans installed in never vehicle models is controlled either by a temperature-sensitive fan clutch or on-board computer which automatically engages and disengages the fan whenever necessary. The radiator fan is usually positioned on either side of the radiator. A fan that does not draw enough air to the radiator can cause the engine to overheat. So it is important that the radiator and the radiator fan should always be in their peak condition. Also, to have an efficient radiator fan, it must also have a fan blade. The fan blade like your Mercury fan blade is usually located inside a mainframe grille in order to direct the airflow. Fan blades can be either be made of high-grade plastic or steel. Make sure to regularly inspect your Mercury fan blade and notice if there are debris that hamper the performance of this component. Turn on your engine, open the hood and check if the fan is properly working. It must be securely fastened to its mount and the belt must be tight on cars with mechanical fans. For damaged fan blade, it is better to replace it and prevent the risk of engine overheating. To get high quality Mercury fan blades, our site is an excellent choice.