2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42
Often the cause of unstable operation of the electrical equipment of your car is a failed or poorly tensioned alternator belt. You should not immediately rush to a car service center with a request to help fix the problem, because replacing the alternator belt is not as difficult as it seems at first glance, and most motorists can do it.
The first sign that the alternator drive belt has become unusable or loose is the whistle that appears when you put a load on the car's electrical equipment (turn on the headlights, radio, etc.). Many car models have an indicator that gives a signal in case of malfunctions, and then you need to take measures to eliminate them without delay, otherwise this part of the car will fail.
When you decide to inspect the system, you need to take some precautions, including stopping the engine and disconnecting the negative battery cable. Then you need to inspect the belt, located on most car models to the left of the engine, for defects, its tension and sagging. If you find obvious defects (gust, delamination, severe wear), then the alternator belt must be replaced by purchasing a new one. Atloosening and sagging, the alternator belt should be tensioned.
Replacing an old or damaged belt with a new one is easy. To do this, loosen the nut of the alternator drive tensioning mechanism bolt with a wrench, loosen the belt by loosening the tensioner bolt with the wrench, and remove the released
worn belt. Try to remember how the worn belt was installed in order to install a new one in its place in reverse order.
To simply tighten the alternator belt, use a wrench to turn the tension bolt a few turns while controlling the alternator belt tension. If you have an autotester, then you can use it to adjust the tension more accurately, bringing the indicators to the values \u200b\u200bspecified in the technical documentation for your car.
Let's consider the alternator belt tension using an autotester for VAZ models 2108, 2109 and 21099. First of all, warm up the engine at idle until stable operation. Then you need to connect the tester to the battery, setting the voltage measurement mode on it, loosen the tension mechanism of the generator. If the voltage generated by the generator is insufficient, the indicators on the tester dial will be
continuously change your readings. To adjust the voltage, it is necessary to move the generator to tension the belt with a tension bolt (mount - depending on the car model) to the position where the indicators on the tester dialbecome unchanged, then fix the tension bolt with a lock nut and tighten the generator mount.
After the alternator belt has been replaced and tensioned, it is necessary to check the operation of the alternator. Why, by connecting the disconnected wire to the battery, start the engine and put a load on the electrical equipment, turning on the heating, radio and high beam headlights and making a few regassings with the engine. The absence of alternator belt whistling and the stable operation of electrical equipment indicate that the work was done with high quality.
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