On some models of vehicles, problems with the tension of the generator belt appear over time. In particular, this applies to domestic cars - Lada Priora and Lada Kalina. Although representatives of the foreign automotive industry, too, sometimes sin with such faults. Therefore, every motorist must regularly check the belt tension and when you need to be able to independently pull it up. About this further in the article.

The generator belt, where it is and why it is needed

The generator belt is playing an important role in the functioning of the power unit. The generator is not able to work without it, because of which the battery does not charge. And if there is no battery charging, it is impossible to start the vehicle. There is a belt of the generator to the left of the motor.

What should be the tension of the belt of the generator in normal

The belt tension is considered normal if its deflection is not more than 10-15 millimeters.

How to check the tension of the generator belt on his car

• When checking the belt, the engine should not be equipped.
• Raise the vehicle using the jack and remove the crankcase protection.
• Wear a belt with hand up the center between the crankshaft and the pulleys of the generator. The effort should be about 10 kgf. Using the ruler, measure the deflection value.

Signs of the generator belt attenuation

Under conditions of weak tension, the belt makes a specific "screech" during a sharp increase in the revolutions of the power unit. This is especially noticeable when driving a car or entering the rotation when the squeezing sound is heard when switching transmission. Another sign of weak tension is "flickering" headlights in a dark period. If the generator works normally and with a correct stretch, the headlight light is always bright and smooth. But if the belt tension is weak, in the dark, the headlight lights all the time changes the brightness under the operating engine.

What does the car operate with the irregular tension of the generator belt

If you notice that the tension of the generator belt is too weak or, on the contrary, too strong, it is necessary to immediately adjust it. Of course, the operation of the car with the wrong belt tension is possible, but it can lead to deposits. So, weakly stretched belt is able to slip with respect to the pulley and is quickly torn as a result of heating, and due to the too strong tension of the belt on the pump bearings and the generator rotor shaft, a large load is created, as a result of which they fail in short time.

Preparatory work for repair

First of all, do the generator itself, for example, clean the contact regulator contacts. It is advisable to do this with a wet rag moistened in gasoline. Different generator elements blow with compressed air from the compressor or pump. Also pay attention to the state of the generator fixtures to the motor and the condition of the wires.

Choosing a workplace

For convenience, place the vehicle to the observation pit.

Tools, fixtures, consumables

Prepare such tools:

1. Metal strip.
2. The end key to "17".
3. Rule.
4. Mount.

The tension of the generator belt do it yourself (step by step)

1. Using the end key, loosen the nut on the stretch bar fastening the generator belt.
   
2. Next, from the bottom of the pit, loosen the fastening of the generator to the bracket, after removing the motor's mudguard.
   
3. Then press the mount generator from the engine to ensure the desired tension.
   
4. In this position, tighten the nut with sufficient effort.

Tips Prof.

After the work on the stretch, check the generator performance. First check the generator circuit on the motor disconnected. Tighten the key to light on the panel of the control lamp. After that, you can run the power unit. After some time, on the average frequencies of the crankshaft, the lamp should go out.