Clutch release bearing. Symptoms of a clutch release bearing

Clutch is a very important knot in the design of any car. It includes a clutch release clutch. Symptoms of the failure of the element, its purpose - later in this article.

What is it for?

The clutch release bearing (2110th VAZ including) provides communication between the clutch discs, making them detach and attach for a certain time period. It is controlled by pressing the pedal. The principle of operation of this element is very simple and consists in the following. When the driver presses the clutch pedal, the fork that acts on the working cylinder is activated. It, in turn, produces an effort to disconnect the pressure plate and the driven disk. In order for both elements to come in contact again, the clutch release clutch is engaged. Symptoms of a malfunction (VAZ-2114 including) of this element are due to the high stresses imposed on the part. This element is constantly in mesh with other components, such as a flywheel and clutch disc.

Where to use

Automakers use this element on systems with two drives - the slave and the master. The first element receives the torque from the second and transfers it to the transmission. Further on карданной transfers effort is transferred on a reducer, and then - on wheels. The drive disk is tightly fastened to the crankshaft. To switch the driver from one gear to another (no matter whether it is elevated or lowered), it is necessary to separate the two elements. This operation is made precisely by the bearing. The force is controlled by depressing the clutch pedal. When it is squeezed "to the floor", the torque transmission stops - the bearing rotates at the same speed as the flywheel. As you release, the two disks join together. At this time, there are high loads imposed on the clutch release bearing. Malfunctions of these elements arise precisely because of heavy loads. It is worth noting that during the movement, when the car is traveling "on the transfer," this element is in a calm state. But as soon as you need to switch to the next or previous speed, it immediately connects to work. Despite the small size, this element performs a responsible function. At any malfunction further operation of the car will be impossible or difficult. Therefore, with the first symptoms should pay attention to it. What are the clutch release bearing signs of malfunctioning ("Kalina" including), we will consider further.

How to determine its wear and tear?

First of all, the element will start to emit characteristic noises and sounds. And what is most interesting, during the movement on the transfer they can not be noticed. But as soon as you clicked on the clutch pedal, there is a terrible hum, and sometimes a knock. Especially it intensifies in the winter. It is worth noting the high reliability of the construction of such a detail as a clutch release bearing. The signs of a malfunction of this node at the first stages are very difficult to notice. Sometimes you will hear a slight rustle, which does not increase with time. However, this feature is enough to diagnose the element for a malfunction. Also, there are difficulties in turning gears, especially the rear. Inclusion of speed can be accompanied by a characteristic crunch. Also, this symptom may indicate a malfunction of the synchronizers or of the pressure and slave drive. But in any case at occurrence of noise it is necessary to make diagnostics of all components of the site. It should be noted that the bearing is made of strong steel with a low expansion factor. However, the glass itself is very sensitive to temperature changes. Its deformation can trigger a knock when the pedal is depressed. In this case, urgently need to replace the clutch release bearing. Symptoms of a malfunction may be accompanied by the impossibility of turning off the transmission. Both discs will be in constant engagement. A similar symptom arises from a breakdown and leakage of fluid to the clutch. The pedal becomes inefficient. The operation of a car with such a breakage entails an increased wear of synchronizers and transmission gears.

How to extend the resource?

As we said earlier, the task of this bearing is to disconnect the two disks. Since it is practically not involved when driving on a transmission, the main load is imposed when the pedal is depressed. If it is held for a long time, the bearing wears out strongly.

But how to be?

Everything is very simple. For example, you drove to an intersection, where a red traffic light signal. If the green does not turn on for 5-10 seconds, safely turn on the neutral, and hold the car (if it's a slope) on the handbrake or the brake pedal. Benefit at many traffic lights is a timer, so you can predict the situation in advance. But this rule should be used not only at intersections, but in any other traffic situation (for example, standing in a traffic jam). It is not necessary to "play" the clutch, sneaking behind the oncoming car in order to observe the minimum distance. The less time you hold the pedal squeezed, the better for the bearing. Do not be too lazy to translate the selector switch to "neutral" - so you can avoid the expensive and expensive repair. Since the replacement of the bearing involves the removal of the transmission and the clutch basket. And if it's a rear-wheel drive car, then a propeller shaft.

Conclusion

So, we found out what the clutch release bearing is showing signs of a malfunction. As you can see, the main symptom is extraneous sounds in the area of the box and the clutch, as well as the difficulty in switching gears. By the way, this element is checked simply - it is enough to take one hand for its base, and the second to rotate it on the axis. If you are replacing a disc or a basket, do not be lazy to make such a diagnosis. After all, it is possible, after a couple of hundred kilometers, you will have to remove all the hinged ones again or go to the service, where you will be asked for a considerable sum.