Continuous combustion could cause your engine to give up if not for your cooling system - which eliminates about one-third of the heat produced by the engine. Some of the heat is used for other auto processes, but too much of it could lead the engine to break down if the heat is not dissipated.
One of the principal components of the engine's cooling system is the radiator fan, sometimes also called condenser fan or automotive fan. It is a rotating device whose primary function is to dissipate heat. It has a fan motor, a fan blade, and a fan shroud.
The fan motor powers the radiator fan and keeps it running, while the fan blades are the curved propellers that project from the central hub and runs around it to create air. Most fans have four blades but some have as much as eleven. The fan shroud, on the other hand, is a plastic hood that protects the blades. It encloses the fan, and because of that, it can direct air through the core and prevent it from coming back and through the fan again. Thus, cool air is concentrated. The fan shroud must be mounted properly, though, to ensure that it works well. Its durability may be determined by how it responds to vibration while you are on the road.
These parts of the radiator fan are most often made of tough plastic. Considering that the radiator fan plays a central role in the engine's cooling system, it must not be neglected and must be replaced immediately if even a tiny crack appears on one of its blades. Otherwise, heat would accumulate in the engine and cause it to break down.
Important Facts You Need to Know About Fan Blade
Plastic is cheap. Yet, most cars nowadays use radiator cooling fans that have plastic blades. Sure, these are lightweight, but wait till they start cracking. No matter where you live, changes in air temperature under your hood can have drastic effects on plastic.A fan blade typically goes through extremely hot conditions, sucking heat off the radiator. Soon, the plastic material can harden and become brittle. It won't be long before it develops a crack. A cracked fan won't be able to perform its task well enough to keep your car's engine from overheating.Thus, you may find the water temperature gauge rising above normal. Your fan blade may be fine today, but the time will come. Before the worst happens, you may want to get rid of the plastic blade in exchange for a metal one.At least, your engine will be safe from overheating resulting from blade failure. You can get one easily at CarParts.com.
• Our fan blades are resistant to warping caused by extreme heat.
• Our fan blades provide direct fit for easy installation.
• APD's fan blades help the engine cooling system prevent overheating.
Tips to Consider When Buying Fan Blades
The radiator fan is an important component of the modern automobile's cooling system, so once they conk out they need to be replaced immediately to avoid heat-related problems with the engine. However, buying a new set of radiator fan blades isn't as simple as walking up to the auto parts store and picking one whose color you like. Fan blades come in many different types, and buying the right one is crucial in ensuring that the radiator and the engine perform as they should.
When buying a new radiator fan blade, take note of the following points:
Engine-driven vs. Electric
One of the key pointers to consider when buying a new radiator fan blade is whether the blade is powered by the engine or battery. Engine-driven fans, which are also known as manual radiator fans, only function when the engine is running and spins at the same rate as the engine. Electric radiator fans, on the other hand, are attached directly onto the radiator and use the car battery as a power source. You cannot mount an engine-driven fan or fan blade on radiators designed for use with electric radiator fans and vice-versa, so make sure to verify the parts before purchasing.
Number of blades
Another factor to consider when purchasing fan blades is the number blades the fan has. Radiator fans can have anywhere from 4 to 10 blades, and the more blades a fan has the more air it is able to push to the radiator. However, more blades also means the fan will have to compensate for the space and weight. Thus a fan blade than is meant for a 10-bladed fan is different both in weight and appearance compared to a blade designed for use with four-bladed fans.
Flex fan blades
When buying fan blades, you may want to give flex fan blades a try. One of the latest designs in fan blades, flex fan blades flatten once the fan reaches a certain RPM. This reduces resistance of the blades to almost zero and cutting down energy consumption in the process. But once the engine slows down, the blades return to their original state and work to keep the engine cool.
Steps on Replacing a Fan Blade in Your Car
The radiator fan is one of the key components that keep the engine cool, so once any of its blades snaps you can expect engine overheating to follow suit. And changing the radiator fan blade, or any cooling fan blade in your car for that matter, is quite easy enough for you to do without the help of a mechanic. In this guide, we have listed down the steps to replacing the fan blades in your car.
Difficulty level: Easy
- Ratchet set
- Clean rag
- Degreasing solution
- Fuse (optional)
Step 1: Before you start, shut off the engine and let it cool down. The heat from the engine and radiator can still burn your hands even with protective gloves, so it's best to leave it to cool for 30 minutes to an hour. We also recommend parking the car in the shade and opening up the hood to speed up the cooling process.
Step 2: Disconnect the wires. This only applies for electronic fans, so if yours is engine-driven you can skip this step. With the ignition off, unhook the wires snaking out at the bottom of the fan. A slight tug should get the wire loose. In addition, we recommend taking this time to check the condition of the fuses of the radiator fan. The fuse is usually included along with the rest of the car's fuses in a box under the dashboard or in the engine bay.
Step 3: Detach the fan blades. The blades are usually held in place with metal bolts, so use a ratchet of an appropriate size to twist the bolts loose. Once the bolts are gone, the fan blade should detach from the base without a hitch. Be careful when pulling out the blade to avoid hitting the fan shroud or radiator itself.
Step 4: Clean the fan. Check if there is any grease, tar, or other residue stuck to the fan or fan blades. If there is, wipe off the stains with a rag dipped in a degreasing solution. For those hard-to-reach areas, use a pipe cleaner.
Step 5: Attach the new fan blades. Slot the new blades onto the radiator fan base and bolt it into place. Once the blades are mounted, test it by starting up your car.