Noises and clattering are standard signsclutch problems that can occur in a variety of situations. Also, there is incomplete switching on or off, sticking the pedal, slipping. If any of the listed faults are present, then it is necessary to check the clutch. How to do it? We will talk about this in this article.
There are several verification methods.The main one is based on the use of measuring equipment, which you, most likely, do not have. This is a special measuring caliber. The plus of this method is that the clutch discs do not require dismantling - it's enough to lift the car on the lift.
It will take a lot of time for this check, butthe method will yield an accurate result. This method of verification is applied to the service station. How to check the clutch on the machine yet? There are other alternative methods that do not require equipment.
Such a verification is made ifthere are prerequisites for improper operation of the clutch. But depending on the nature of the breakdown technique may differ. The most common situation is the slippage of the clutch. In this case, the correctness of his work is checked as follows:
If the engine is stalled, it is likely that the clutch disc is worn out and needs replacement. However, such a result is not always accurate.
How do I check the clutch disc yet?The second method does not involve the use of any special techniques. The driver when driving in city mode just need to carefully monitor the behavior of the car. For example, if the car is very hard going up, there is a smell of burning or a drop in speed for no apparent reason, then there is a slippage. In this case, you can try to replace the clutch disc, but in this case, other elements of the system may be responsible for this behavior of the vehicle, and the clutch may be in good order. So you need additional diagnostics.
When the clutch "leads", then unpleasant sounds emerge from the gearbox, and gear turns on to become more difficult. In this case there is a way how to check the clutch:
If the transmission is activated,make efforts and at the same time there are strange sounds out of the box, this first of all indicates that the flywheel disk does not uncouple. Most often, a similar problem is solved by pumping hydraulics and adjusting the pedal.
Recall that the clutch disk necessarily hasyour resource. Many car owners forget about it and change only when driving a car becomes uncomfortable. In urban traffic mode, this resource decreases rapidly, and if the car "ran" about 70-80 thousand kilometers in the city, then the clutch disk is simply required to "flounder". However, when driving on roads, the car can travel more than 300,000 kilometers without replacing the clutch disc.
The easiest way to determine the degree of wear of the clutch disc is by using the pedal stroke. To do this you need:
If the grip began to grasp at the very beginningthe progress of the pedal, this indicates that the disc is all right and its degree of wear is either low, or it is completely absent (the disc is new). If grasping occurs in the middle of the pedal, this may indicate wear of the disc, but not always. On some machines, there may be a similar pedal adjustment, in which the disc grasps at the middle of the pedal travel.
In the event that the grasping is carried out inat the very end of the pedal stroke or in general there is a slip, this indicates a worn-out disc that requires replacement. If there is a burning odor, the clutch disc must be changed urgently, otherwise there is a risk of damage to the flywheel.
It's not enough just to know how to checkclutch. You also need to be able to check the squeeze bearing, since this element in the transmission system plays an important role. Often its failure is confused with the breakdown of the entire clutch system.
The test is carried out with the pedal depressedclutch, since it is in this position that torque is transmitted to the bearing. He pulls away and pulls the clutch disk behind him. Therefore, it is not recommended to keep the clutch pedal depressed for too long, since this has an unstable load on this part and leads to its rapid deterioration.
A clear sign of wear on the bearing - sounds whenpressed clutch pedal (knocking, rustling). However, if such sounds appear in the cold season, then you should not worry. This part has a low expansion coefficient at low temperatures because of the high strength of the steel. And the glass itself, where the entire assembly is located, has a high expansion coefficient. Therefore, when sound is heated, the sound should disappear.
In addition, there are other signs,which indicate a malfunction of the clutch: incorrect gear changes, the inability to include some gear at all. Also worth paying attention to the jerking of the car while driving at speeds.
With faulty cylinders, the car can eitherDo not react to pressing the clutch pedal at all, or react incorrectly. Often, car owners who do not have a master or auxiliary cylinder, complain that the car starts to move even when the clutch pedal is depressed. This is primarily a faulty cylinder. Check them out quite simply: given that there is nothing to break there, you just need to check if there are fluid leaks in the cabin (immediately above the clutch pedal and under the hood). If there are no streaks, then, most likely, the cylinders are all right.
Now you know how to test the grip.Of course, no one can guarantee a high accuracy of verification, so in any case, if you suspect a malfunction, it is advisable to contact the service station. They know exactly how to test the grip of VAZ and other car brands, including rare foreign cars. On some foreign cars, the methods described above do not work.
