Tuesday, October 10, 2017

Important Lessons On A Cooling Fan Assembly

By Donna Kennedy


Few people ever bother to research about the technical aspects of their cars. However, it is always important to learn something about how the components in your car work. You never know when a quick fix may be necessary. This article expounds on the history of the cooling fan assembly, its purpose, purchasing tips and the types available for different cars.

The primary purpose of this important component is to lower the temperature of the engine in a car. When being driven, heat flowing from a car engine is regulated by a coolant as it passes through the radiator. A fan blows cold air through the heated components and the radiator, thereby decreasing the internal temperature. The process takes place over and over as the air re flows into the engine.

Thanks to rapid advancement in the development of vehicle technology, several versions of assemblies are available. The earliest versions are the manual ones. A manual system is powered using an engine crankshaft and works like a pulley. Once the engine is turned on, the fans start functioning.

Clutch operated versions were introduced shortly after the crankshaft operated ones. In essence, clutches are categorized as thermal and non thermal. In the latter, a water pump is connected to a clutch mechanism. The engagement of the clutch is thereafter determined by how fast the engine is running.

A heat based clutch is operated using a bi metallic spring system that works as a thermal regulator. The spring system determines the quantity of cold air let in to the radiator and engine. The system works like a valve, letting in cold air when temperatures exceed the set regulation.

Nowadays, there are cars that have electric assemblies. The electricity generated by the system when driving is what controls the thermal sensors. The coolers in these cars are usually smaller in size. Their fans are usually attached in front or behind their radiators. They work by pulling or pushing air depending on where they are installed.

Cooling components usually suffer the effects of wear and tear with time. If your car has been operational for long, you may notice the blades in the assembly start to bend. This may lead to the direction of insufficient or excess amounts of air to the radiator. Thermal sensors also tend to malfunction as time goes. If your clutch system is faulty, it may trigger or disengage the coolant at inappropriate times.

If you are experiencing such problems with your car, it may be time to take it to your dealership for repair. Most mechanically savvy car owners prefer fixing such technical problems on their own. In this case, it is important to do so only when the engine is off. One thing you should be careful about during this process is to buy a genuine replacement.

Car manufacturers always append serial numbers to their products in order to lower the risk of counterfeiting. As such, make sure every component you purchase is serialized in a verifiable manner. Finally, never use spare parts that are meant for a different car model.




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