The radiator fan belt makes the radiator fan turn and helps cool air to circulate. It equally powers other parts. If it’s not doing its job well, this can result in decreased performance and the engine overheating. There are a number of signs that your radiator fan belt might need to be changed. If you pay attention to them, you won’t suddenly be faced with a broken fan belt or get stranded at the side of the road.
Radiator fan belts will oftentimes wear out, and with older cars, they should be changed every 50,000 miles. If you hear a squealing from the engine, it’s a good indicator that the radiator fan belt is wearing out. You might just observe the squeaking belt when you start the engine, and it could just last for a couple of minutes. Be aware that this will increase over time, same as the volume.
The cause of this is the belt slipping on the pulley. Generally, this will be because of corrosion of the radiator fan belt. You can buy sprays that will prevent the belt slipping, but these are only short-term fixes. The only real solution will be to changeJu the belt and make sure the tension on the new one is right.
If the belt is slipping happens alway, the chances are that it’s not as taut as it once was. It can stretch over time, and when that occurs the belt will require replacement. The way to inspect this is by pulling on the belt. With a good radiator fan belt there will be very little give. Push down on the fan belt with your thumb. If it provides too easily and travels too far, then you will need to change it, as it will be slipping on the pulleys and not producing enough power. If you have a new belt, comparing the length of the old belt to the new one can equally give you an idea of how stretched out the belt is.
You’ll need to change a radiator fan belt if there’s a great deal of fraying or cracking on the belt. You can check this with a visual check. Use a flashlight, and have a small mirror to look at the underside of the belt. If there are more than two cracks per inch on the belt, then you should change the belt. Do so as soon as possible if any of the cracks run deeper than half the belt’s thickness, as these could break at any time.
You should equally look out for rubbing and cording on the belt, which are strong indicators that the radiator fan belt is very worn and requires replacement.
When you check the radiator fan belt, you might notice a number of bumps and pinholes. These show that somehow dirt is coming between the pulley and the belt. If there are just a few, this isn’t a great worry. If there are quite a number of them, then it’s time to change the belt. Similarly, if you spot any abrasions on the belt, you should consider replacing the belt before they become worse.