Replace the generator belt - it's a simple matter

Often the cause of unstable operation of the electrical equipment of your car becomes a failed or badly tensioned generator belt. Do not immediately rush into the car service to specialists with a request to help in eliminating the problem, after all, replacing the generator belt is not so difficult, as it seems at first glance, and on the strength of most motorists.

The first sign that the generator drive belt has become unusable or badly pulled is the whistling that appears when you load the car's electrical equipment (turn on lights, radio, etc.). On many car models there is an indicator that gives a signal in case of malfunctions, and then you need not delay taking measures to eliminate them, otherwise this car node will fail.

Deciding to inspect the system, you need to take some precautions, including stopping the engine and detaching the negative battery wire. Then you need to inspect the belt, located in most car models to the left of the engine, for defects, its tension and sagging. If you find obvious defects (gust, stratification, heavy wear), then the generator belt must be replaced by purchasing a new one. When it is weakened and sagged, the belt of the generator should be stretched.

It is not difficult to replace the old or damaged belt with a new one. To do this, loosen the nut of the tensioning mechanism of the generator drive with a key, loosen the belt, the tensioner bolt with the help of a key, and remove the released Worn belt. Try to remember how the worn belt was installed to install a new one in its reverse order in its place.

To simply tighten the generator belt, use a key to turn the tension bolt a few turns while controlling the belt tension of the generator. In case you have an autotester, you can use it to adjust the tension more accurately, bringing the indicators to the values specified in the technical documentation for your car.

Let's consider a tension of a belt of the generator by means of the autotester for VAZ models 2108, 2109 and 21099. First of all warm up the engine idling up to steady operation. Then it is necessary to connect the tester to the battery, having established on it a mode of measurement of pressure, to weaken the tension mechanism of the generator. With insufficient voltage generated by the generator, the indicators on the dial of the tester will be Continuously change their testimony. To adjust the voltage, it is necessary to move the generator to tension the belt with a tension bolt (mount - depending on the model of the car) to the point where the indicators on the dial of the tester become unchanged, then fix the tension bolt using the lock nut and tighten the generator mounting.

After the generator belt has been replaced and stretched, it is necessary to check the operation of the generator. For this purpose, by connecting the disconnected wire to the battery, start the engine and load the electrical equipment by turning on the heating, radio and high beams and making several engine overruns. The absence of the generator's whistle and the stable operation of the electrical equipment indicate that the work was performed in a quality manner.