We independently repair the clutch slave cylinder on a VAZ 2106

How to replace the clutch slave cylinder of a VAZ 2106

The slave cylinder is the cylinder in the clutch system that directly moves the clutch fork, is mounted underneath and contains the clutch bleeder. As you guessed, today we will talk about replacing the VAZ 2106 clutch slave cylinder with our own hands.

I recommend performing this type of work on an inspection ditch or a lift.

Replacing the clutch slave cylinder VAZ 2106

1. Disconnect the tension spring.

2. Using pliers, remove the cotter pin from the end of the pusher.

3. Using a 17mm wrench, loosen the fastening of the hose tip in the cylinder plug.

4. Using a 13mm socket, unscrew the two bolts securing the cylinder to the clutch housing.

5. Holding the hose tip with a “17” wrench and rotating the cylinder by hand, disconnect it from the hose.

6. To reduce fluid loss, immediately screw a new cylinder onto the hose tip. Next, install the cylinder in the reverse order of removal and adjust the gap between the pusher and the fork.

After installing the new cylinder, we bleed the clutch hydraulic system. Note that after replacing the VAZ 2106 clutch master cylinder, the hydraulic drive also needs to be pumped.

Source

Hydraulic clutch bleeding procedure

After replacing or repairing both the main and slave cylinders, the driver will have to bleed the clutch hydraulic drive, since air gets into the machine’s hydraulics. There is no way to avoid this. Therefore, you will have to call your partner for help and start pumping.

Sequence of work

To bleed, you will need the following things: an old plastic bottle, a piece of hose about 40 cm long, a 12 mm spanner.

The car is installed on the pit and securely fixed. The clutch slave cylinder fitting is clearly visible from the inspection hole. A piece of rubber hose is placed on this fitting so that the fitting nut remains outside. The other end of the hose is placed in a plastic bottle.

So, the master cylinder is the most important element in the VAZ 2106 clutch system. But replacing it does not require special knowledge and skills, so even a novice driver can cope with this task. To successfully replace the cylinder, you just need to be a little patient and strictly follow the above recommendations.

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Clutch master cylinder VAZ classic

This part in the clutch system plays a fairly important role as the final link in the distribution of hydraulic load. In the classic VAZ clutch system, the master cylinder is located, respectively, in the engine compartment near the gearbox and has a fairly convenient outlet for repairing the VAZ 2106 clutch slave cylinder. The part consists of several main parts, which together form a single small but important unit:

1. The piston directly serves to squeeze out the fluid located in the main tank (as usual, special brake fluid is poured there). When the clutch pedal is pressed, it is the piston that activates the hydraulic pressure mechanism and applies forceful pressure to the fork in the clutch.
2. The case is the fundamental part in which the entire mechanism is enclosed. The outer part in modern versions is made of durable plastic. In early models on old Soviet designs, a metal body is sometimes found, but this design is less reliable not only due to age, but also due to the likelihood of corrosion.
3. The rod is driven by a piston and acts as a pusher both when the pedal is pressed and after it is released. When pressed, this part pushes liquid into the system, and then closes the housing for liquid.
4. The protective cap serves to maintain integrity inside the system when liquid enters. Otherwise, it is simply called a cover that covers the housing parts from excessive contact of substances with the mechanical parts of the unit.
5. The spring acts as a single unit together with the piston when the gas pedal is pressed and actually “serves” the unit during the return action. One of the main reasons for system failure is often the wear of the spring, which causes the cylinder to not close properly and the fluid to escape beyond the closed circuit.
6. A valve for bleeding air, which is also a common cause of failure of the entire part due to its inoperability. This part is designed to remove excess air during piston operation. Excess air, if present in the system and liquid penetrating inside, leads to the disappearance of the clutch, which can lead to an emergency. It is the valve that serves to remove the formed air, but for some reasons this unit can wear out and fail. Moreover, despite its simple design, such a part can rarely be repaired and most often must be completely replaced, not only because of the impossibility of the repair itself, but mostly because of the low cost of both the complete assembly and its individual parts.

Clutch assembly

For assembly, use a stand or device used during disassembly.

To maintain the force of the pressure springs of tractor clutches, it is advisable to place washers in the ring grooves of the pressure plate, the thickness of which is equal to the layer of metal removed during turning.

Springs are selected that are equal in length and elasticity. When the clutch is assembled, all ends of the release levers should lie in the same plane, parallel to the base of the housing. The distance from the end of the clutch housing or from the working surface of the pressure plate to the plane in which the ends of the release levers are located is set strictly in accordance with the technical conditions for a given machine. If there is no stand, the correct location of the release levers is installed on the plate using a depth gauge or a special device.

Clutch drive device VAZ 2107

We dealt with the clutch mechanism of the classic VAZ 2101-2107 not so long ago. There is nothing complicated there either and you can refresh your knowledge here. In all rear-wheel drive VAZ cars, the clutch release drive is hydraulic. The clutch master cylinder is installed in the engine compartment on the shield, the cylinder is located coaxially with the clutch pedal rod. A pusher is attached to the pedal itself through a hinge, which presses directly on the master cylinder piston. The VAZ clutch drive diagram is presented below.

Clutch drive diagram VAZ 2101-2107

Thus, the rod, through the pusher piston, acts on the incompressible brake fluid in the master cylinder, which transmits force to the piston of the working cylinder, already installed on the gearbox housing through the hydraulic hoses.

Replacing cuffs

As mentioned above, the entire clutch cylinder is rarely replaced. Much more often, the car owner disassembles it and repairs it. About 80% of cylinder failures are associated with a violation of its tightness. The cylinder begins to leak due to wear of the sealing collars. So the repair of this device in the vast majority of cases comes down to replacing the seals, which are sold in the form of repair kits in almost all spare parts stores. The standard VAZ clutch repair kit includes three o-rings and one rubber cap. This kit costs about 300 rubles.

Sequencing

All we need to replace the cuffs is a thin screwdriver or an awl.

1. The piston removed from the cylinder is thoroughly wiped with a rag, then washed with brake fluid.
2. The old cuffs on the piston are pryed off with an awl or a screwdriver and removed.

Replacing the working cylinder

This is the mechanism that is installed on the clutch housing of the VAZ-2106. The clutch master cylinder is mounted opposite the pedal. Sequencing:

1. Remove the retainer from the pusher.
2. Remove the return spring.
3. Carefully unscrew the nut located on the liquid hose.
4. Drain the remaining brake fluid by unscrewing the hose.
5. Remove the two bolts that secure the cylinder. The pushrod must be pulled out from the clutch fork.

When removing, it is necessary to install a rubber gasket with a washer on the new hose. It is not included in the repair kit. Assembly is carried out in reverse order. Using a nut located on the rod, the travel of the clutch pedal is adjusted. But this should be done only after pumping.

Clutch replacement

Please note that it is imperative to install new clutch basket mounting bolts. On old ones, the threads already have minor deformations, therefore, the connection will be very unreliable. The price of all elements will be approximately 2000-2500 rubles.

If you prefer foreign-made units, it will be more expensive. However, it is worth wondering about a simple truth: the service life of imported ones is sometimes shorter than domestic ones, and the price can be twice as high. Why pay extra money? And in general, if the price of a car is 20-40 thousand rubles, why invest a lot of money in it?

But let's return to the replacement procedure. Unscrew all the bolts from the basket, remove it and the clutch driven disc. Install new elements in the same way, but tighten the bolts, do not tighten them. It is advisable to look at the condition of the crown before installation. If it is deplorable, then you should immediately install a new one.

In stores, its price is about 200-250 rubles, which is not very expensive. But you can reduce the cost of repairs by simply removing the crown, heating it and installing it on the reverse side. But you will have to buy a new one if this procedure was previously performed.

Pay attention to the VAZ 2106 clutch fork; if it is damaged, be sure to replace it. A new release bearing is installed in any case. You can apply CV joint grease to it, for example. This can slightly increase its resource.

Almost finished, all that remains is to take the guide sleeve and install it in the hole of the clutch disc. Without removing the shaft, tighten all the basket mounting bolts crosswise. Do not allow distortions, otherwise the clutch will not work correctly and its service life will decrease.

That's all, the clutch replacement was completed successfully, now all that remains is to assemble the car. But here no difficulties will arise, since all the actions are the opposite of those that were described in detail in this article. If you also need to replace the brake fluid in the drive system, then read on.

Operating principle and replacement of the clutch master cylinder

The clutch master cylinder itself serves to transmit the maximum fluid pressure from the foot pedal of this mechanism to the VAZ 2106 clutch slave cylinder, forcing it to move within the required limits in its plane. As has already been noted, the transmission of the pressure force of the foot drive through the clutch master cylinder entails an increase in the pressure parameters in the hydraulics of this complex.

Next, the system pressure is transmitted to the clutch slave cylinder, which drives the vehicle’s transmission. However, there are defects that require repair and replacement of the GCS and RCS. This can be determined if the following signs are present:

1. The drive unit of the system does not completely disengage (the clutch “drives”).
2. Leakage of working fluid from the components of the unit, incl. from hydraulic pipes and their connections.
3. “Wedging” of the clutch master cylinder when the foot drive is in the lowest (recessed) state.

Repair kit for repairing the clutch master cylinder - what does it consist of?

At its core, a repair kit is a set of parts that are most necessary for repairing a specific component of a car unit.

Most often, a repair kit for repairing the clutch master cylinder consists of 4 parts. The set contains 1 protective cap, 2 pcs. sealing heads of the rear brake pressure regulator piston, one cap of the fitting for the clutch release cylinder bleeding hose. By purchasing such a set, each car owner will be able not only to save a certain amount of personal funds for the purchase of a new cylinder, but also to restore the functionality of this part of the car.

Device location

To find the clutch slave cylinder on a VAZ classic, you need to look for it directly in the area where the gearbox is located. The device is attached with two bolts to the gearbox housing.

The mechanism can only be seen from below or in the very depths of the engine compartment on the driver’s side. Repair work related to dismantling and replacing the clutch slave cylinder can be carried out “from under the hood,” but it is much more convenient from an inspection hole or on an overpass. The video below shows the location of this unit. What function does this product perform and is it possible to do without it? We'll find out more about this later.

Features of operation

The operating principle is very simple. Below is a diagram where the slave cylinder is indicated by a green arrow.

According to this diagram, we can say that the RCS performs an important function, or rather, it activates the fork, which is connected to the clutch drum. The main element of the RCS, or rather the piston, is activated by the resulting fluid pressure coming from the main cylinder through the hose when the clutch pedal is pressed. The brake fluid pushes the piston, which in turn drives the fork, which acts on the drum, pushing the disc away from the flywheel. Many people wonder why brake fluid is used in the system? The reason is that brake fluid is incompressible, which is why it is used in such important systems as brakes and clutches.

When to replace the RCS

During the use of the unit, which happens very often, the product tends to fail. The main causes of breakdowns are chafing and wear of the cuffs, the appearance of cracks in them, which entails the leakage of liquid. Significant loss of fluid will cause the clutch system to malfunction. It is possible to repair a DCS that has become unusable, but it is easier and more efficient to replace it with a new one.

In order not to wait until the pressure in the clutch pedal disappears, you need to periodically inspect the unit. If there is a leak in the fuel fluid, it is necessary to immediately carry out the appropriate repairs on the VAZ 2107. Before carrying out repairs, you need to make sure that this particular element is faulty, since the main circulation system may also fail. The main signs of failure of the RCS are:

• decrease in the level of fuel fluid in the tank;
• visible brake fluid leaks from the device body or from under the rubber boot;
• “failures” of the clutch pedal, which can be periodic or constant;
• difficulty changing gears.

But most often the malfunction is determined by detecting a brake fluid leak.

Features of replacing the RCS

Replacing the VAZ 2107 clutch slave cylinder begins with the need to remove all fluid from the reservoir. Further actions are carried out in order:

1. First you need to loosen the fastening nut that connects the hose to the cylinder. There is no need to unscrew the nut completely, just loosen it at this stage.
2. Using pliers, you need to remove the tension spring.
3. After this, you should unclench the cotter pin and remove it from the tip of the pusher.
4. Using a key set to “12”, you need to unscrew the two bolts that secure the product to the gearbox housing.
5. After unscrewing the bolts, you can disconnect the bracket from the cylinder, which is intended to secure the spring.
6. Holding the working cylinder body, you should dismantle it. During dismantling, pay attention to the pusher, which is located in the fork.
7. After disconnecting the product from the crankcase, you can continue unscrewing the nut connecting the hose to the device. After unscrewing the nut, brake fluid will begin to flow out of the hose, so you should prepare a special container in advance.

Causes and symptoms of GCS malfunction

As mentioned above, wear and tear of individual cylinder elements is inevitable over time. Also, premature failure of a part can be caused by untimely replacement of brake fluid, ruptures of seals, errors in assembling/installing individual spare parts from the repair kit, etc.

As a rule, the most serious damage can be considered when the mirror of the cylinder itself is heavily worn, scuffs, abrasions and other defects appear on the metal surface, and pockets of corrosion are visible. In such a situation, a conventional overhaul using a repair kit is often not possible. The only solution is to completely replace the clutch master cylinder.

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The fact is that one of the properties of brake fluid is high penetrating ability. This means that fluid seeps through even the smallest scratches on the cylinder bore and/or piston. Replacing only the rubber seals does not help in this case.

We also recommend reading the article about whether there is a clutch in an automatic transmission. From this article you will learn what devices and mechanisms in an automatic transmission perform the clutch function, as well as how the clutch works in an automatic transmission.

Often, a high-quality GCS repair kit usually has both cuffs and a new piston. However, if there are scratches on the cylinder mirror, in this case the entire part needs to be replaced. For this reason, it is important to prevent critical wear and tear by paying attention to the slightest signs of failure of the main circulation system. As soon as a problem occurs in the cylinder, fluid can leak out of the system and its level decreases.

Also, the clutch pedal may work worse; while driving, the driver notices that the gear shifting process is disrupted as a result of clutch malfunctions. If there are problems with the cylinder, the clutch pedal may fall to the lower position (fall, stick), the pedal travel becomes tight, etc.

In this case, a visual inspection must be carried out immediately. First of all, you should check the level and condition of the brake fluid. You also need to inspect the cylinder itself. If there are obvious stains on the cylinder or the seals (cuffs) are wet, then a leak is obvious.

We also note that a common problem with the clutch master cylinder is active clogging of the holes in the reservoir cap. In order for the device to work properly, it is assumed that the fluid level in the cylinder reservoir constantly rises and then decreases.

In order for the level to rise and fall normally, there are special ventilation holes in the tank lid. In cases where the holes are clogged with dirt, the entire hydraulic drive malfunctions, the clutch pedal moves hard, the clutch pedal slowly returns to its original position, etc.

What is needed for repair?

If the master or slave cylinder has become unusable, you will need to make repairs. On sale you can find special kits consisting of pistons, sealing rings, and springs. But installing them on old worn-out cylinders is unlikely to be advisable. Pistons and rings have standard sizes, but the inner surface of the cylinder wears out over the years, and in most cases this happens unevenly.

Therefore, when installing new, almost perfect pistons, you will not get the desired effect. When making repairs, you must purchase brake fluid. In general, its resource is no more than two years. Only in this case will the liquid work as efficiently as possible; if this period is exceeded, the additives that are added to the liquid will volatilize.

Before starting repairs, be sure to drain all fluid from the system. To do this, you need to pump it out of the expansion tank using a bulb. Then, unscrew the bleeder fitting on the working cylinder and get rid of the residue.

Bleeding the system

Draining fluid from the clutch drive system is very simple:

1. Using a blower, pump out the liquid from the expansion tank.
2. Unscrew the fitting on the working cylinder and wait until all the fluid is gone.
3. Press the clutch pedal several times to remove any remaining brake fluid.
4. Change tubes if necessary.
5. Tighten the fitting.
6. Fill the reservoir with fresh brake fluid.
7. Place a transparent tube onto the fitting.
8. Have an assistant press the clutch pedal several times. With the last press, you need to hold it in the extreme position.
9. Unscrew the fitting half a turn, allowing fluid and air to escape.
10. Repeat the procedure until liquid begins to flow without air bubbles. Don't forget to monitor the level in the expansion tank.

In fact, two or three passes are enough to get rid of air in the system. As you understand, pumping the clutch on a VAZ 2106 is not difficult. The procedure is very similar to bleeding the brakes, only it is much faster - the line is very short.

After replacing the clutch, it will need to be adjusted. Pay attention to the working cylinder rod - it has a thread along which you can move the nut. It is by moving it that the clutch is adjusted on VAZ 2106 cars and the rest of the classic series. It is also possible to adjust the free play of the clutch pedal; for this purpose, a special bolt is provided directly above it.

Selection of GVC for VAZ 2107

The best option for replacement is to purchase a GCS designed specifically for classic VAZ models. Clutch master cylinders from UAZ, GAZ and AZLK vehicles are not suitable. The same applies to foreign analogues - foreign cars with rear-wheel drive are equipped with GVCs, which only highly qualified specialists can adapt to the VAZ 2107 (different sizes, different threads for pipelines, different pipe configurations). However, you can easily replace the original cylinder with a GCS from a VAZ 2121 and from a Niva-Chevrolet.

Manufacturer's choice

When purchasing a new GVC, you should focus on products from trusted Russian manufacturers (AvtoVAZ JSC, Brik LLC, Kedr LLC), the Belarusian company Fenox, which is adapted to our conditions and is affordable. The average cost of GVC is 600–800 rubles.

Table: comparative characteristics of GVCs from different manufacturers

Technical parameters of the seven clutch, classification and parameters

VAZ models are equipped with a single-disc clutch with a central spring

Motorists interested in which clutch is best to install on a VAZ 2107 should take into account that its type depends on the power of the power unit. The units differ in the parameters of the pressure spring, casing and dimensions of the driven disk, and the entire set consists of three elements:

1. Pressure disk.
2. Slave disk.
3. Release bearing.

Pressure plate

On VAZ classics, two types of such mechanisms are used:

• 2103 – for cars with engines up to 1.5 liters.
• 2121 – for cars with engines up to 1.7 liters.

Externally, they are almost identical, they can easily be confused - the diameter of the disk in both cases is 200 mm. However, there are still distinctive signs:

• On product 2121 there is a mark in the form of a six-millimeter hole in one of the slots in the diaphragm spring blade.
• The width of friction linings 2103 is 29 mm, and 2121 – 35 mm.

Driven disk

To decide which clutch is best to install on a VAZ 2107, it doesn’t hurt to know that a “classic” disc is quite easy to distinguish from a “front-wheel drive” one by the bends that partially cover the damper springs. Driven disks are available in two sizes:

• 200x140 – for engines up to 1.5 liters; There are two brands: 2103 and 2107, the latter has asbestos-free linings.
• 200x130 - according to the documentation, the disk is brand 2121 and is designed for the Niva, but installation on the “seven” is also possible. In addition to its size, it features a reinforced damper with reinforced diaphragm springs.

Another noticeable factor is that the 2121 driven disc has a larger number of rivets on the linings than its 2103 counterpart.

Release bearing

The part is supplied complete and has an additional name - release clutch. For “classics”, its marking also begins with a set of numbers 2101. The bearing is visually distinguished by the presence of wire brackets, which is familiar to car enthusiasts who have replaced the working cylinder on a Lada.

A set of clutch parts for Niva can be installed on any classic car. Such parts are designed to withstand heavy loads, and therefore will last longer. The only inconvenience is that the “Nivov” basket will require a lot of effort on the clutch pedal.

Monitoring the brake fluid

One of the main signs of failure of the clutch slave cylinder in VAZ 2106, 2101, 2107 cars is partial or complete failure of the pedal inside the car when pressed. This indicates a lack of tightness in the system - gradually the amount of brake fluid decreases, and the harder and more often you press the pedal, the more fluid will leave at a time.

This will cause the clutch to stop working and changing gears will be difficult or impossible. If you do not monitor the level of brake fluid in the reservoir and do not eliminate leaks in a timely manner, then consequences may arise - the clutch basket and release bearing will fail, not to mention the creation of emergency situations.

To eliminate the cause of the breakdown or completely replace the working cylinder, depending on the nature of the breakdown, you will need a new working cylinder, brake fluid and a standard set of tools. It is best to replace the working cylinder in a VAZ 2106, 2101, 2107 car from an inspection hole or on a lift. Before starting work, it is necessary to drain the brake fluid that is in the clutch system. Having all the necessary tools at hand, the procedure for removing the cylinder is very easy.

The first step is to pull out the pusher clamp, then remove the tension spring. Next, slowly unscrew the nut on the hose with the liquid, after placing a container to collect it. Then proceed to unscrew the cylinder mounting bolts, after first pulling out the pusher with the clutch fork. Move the fork with the pusher so that it does not interfere with you. Between the working cylinder and the rubber hose there is a rubber gasket with a sealing washer. It is very important not to lose it, because it is not included in the repair kit.

Replace the clutch slave cylinder and proceed with reassembly in reverse order. If necessary, you can adjust the depth of pedal pressing on the cylinder fitting. After completing all the work, fill the brake fluid into the clutch reservoir. Filling will help to completely flush the entire hydraulic clutch system of a VAZ car. Bleeding is performed to clear your system of air that is in the brake fluid.

Work on top of the car

So, a start has been made, the goal is to remove the gearbox to replace the clutch. On VAZ 2106 and similar cars this is done quite quickly, it is only important to follow a certain sequence:

1. Inside the car, remove the gear shift knob. It is attached using plastic latches. Sometimes difficulties arise with dismantling, and it gets to the point where the latches break off. The price of a new set of fastenings is no more than one hundred rubles, and you can purchase it even after repairs have been carried out. Therefore, do not be afraid if you suddenly break the plastic antennae.
2. Go to the engine compartment, unscrew the four nuts that secure the exhaust pipe to the manifold. The fact is that the exhaust pipe will interfere with the removal of the box, but it is enough to move it a little to the side.
3. Disconnect the battery and remove it from the car.
4. Unscrew the two top bolts of the starter, disconnect the power wires for the windings and the solenoid relay from it.
5. Disconnect the ground wire that goes to the gearbox.

Why do you need to change the clutch?

To replace the clutch you will need to stock up on: A 13mm wrench, and in addition to all this you will also need to take two different types of screwdrivers (Flat and Phillips in this case), and you also need to stock up on a mandrel for centering the clutch disc which in a car store it costs literally 100 rubles! (You can see what this mandrel looks like, which is discussed in the article, just below in the section: “For beginners!”)

When should you change the clutch?

During operation, the clutch of any car wears out over time, and the first signs of a worn clutch that a car will show are:

• Increased noise that begins to appear very clearly when changing gears in the car.
• Jerks can also occur when starting a car, and they can also occur while driving when you depress the clutch pedal, then engage a gear, and then when you release the pedal, the car jerks forward slightly.

• In addition to all this, if the clutch malfunctions, the effect that the clutch “slips” may occur. This is when you are driving a car and at the same time you press the gas pedal, let’s say to the floor, and your car does not accelerate, but the engine speed increases sharply and even reaches the red zone, this effect is popularly called the clutch “Slipping”.
• And in conclusion, we note one more effect, called the “Leads” clutch. The first signs of this effect are as follows: let’s say you engage first gear and at this time the clutch pedal is still fully depressed, but even despite this the car starts to roll. This effect is called the “Leads” clutch.

How to purchase a high-quality clutch cylinder, what to look for

The first thing you should pay attention to when choosing a quality clutch cylinder is its cost. Unfortunately, today in the automotive market it is quite difficult to choose high-quality spare parts for a car, the cost of which will be significantly lower than the average selling price. Before you go to a car store for a new part, it is recommended to study the market and all possible offers. Only after this, guided by the suggestions, feel free to go to a more convenient car store for the required clutch cylinder.

In fact, purchasing a high-quality clutch cylinder is quite a difficult task, since it can be fully checked only after installation in the car, bleeding and testing. However, the selection of a cylinder must begin with a visual inspection for visible damage. You should inspect the cuffs that prevent the release of brake fluid from the system. They should be tightly seated and not have any visible damage.

Next, you can close it, press the rod as hard as possible and see how quickly it returns to the reverse position after the impact on it is completed. The rod should immediately return to its place, thereby confirming the normal operation of the return spring.

You can also independently check the tightness of the system at low pressure. To do this, close the outlet and inlet fittings with your fingers, through which the brake fluid passes through the system. By pressing the rod again, air should not escape from the joints of the structure and the sealed cuff.

There should also be no visible damage on the case itself - chips, impacts, cracks, dents. Since this part of the car is quite often under the influence of internal pressure when pressing the clutch pedal.

How to repair a VAZ hydraulic drive

The main thing to remember is that in all cases of such repairs, after it has been carried out, it will most likely be necessary to pump the hydraulic system. It must be done according to the instructions for this car model.

So, to replace the clutch master cylinder in a VAZ 2107 we will need:

• wrenches;
• syringe, container;
• screwdriver, pliers.

1. Use a syringe to pump out the fluid from the master cylinder reservoir.
2. Having loosened the clamp, pull the tube off the tank and drain the liquid from it into a substitute container.
3. We unscrew the fastenings of the pipe connecting the first and second hydraulic drive units.
4. By pressing the pedal, we remove the broken link of the system.
5. We install the new spare part in the reverse order.
6. Add the missing liquid to the reservoir.

Changing the master cylinder of a VAZ 2106 is carried out in the same way. But the work of replacing the working cylinder of a VAZ 2107 will have to be carried out using a slightly different method. True, we’ll take the same tools.

Clutch mechanism design and purpose

What does the brake master cylinder repair kit consist of and how to change it?

The clutch mechanism is the thing that transmits torque through friction forces. As mentioned above, this ensures that the engine is disconnected from the box and switched back on smoothly.

Main elements of the clutch mechanism:

— driven disk with special wear-resistant linings;
- drive disk - flywheel; — pressure plate with springs; - crankcase and casing. Now, using the VAZ 2101 (13) as an example, let’s look at the design of the mechanism and clutch drive. The Zhiguli has a single-plate, dry, permanently closed clutch, with a central pressure diaphragm spring and a torsional vibration damper on the driven disc.

Clutch assembly for Zhiguli VAZ 2101

1 – bleeder fitting; 2 – clutch pressure spring; 3 – pressure spring stepped rivet; 4 – pressure disk; 5 – driven disk; 6 – flywheel; 7 – clutch housing; 8 – bolt securing the clutch housing to the flywheel; 9 – gearbox input shaft; 10 – clutch release bearing clutch; 11 – clutch release fork; 12 – ball support for the clutch release fork; 13 – clutch release bearing; 14 – thrust flange of the pressure spring; 15 – clutch release fork cover; 16 – fork spring; 17 – support ring of the pressure spring; 18 – clutch casing; 19 – clutch release fork pusher; 20 – adjusting nut; 21 – lock nut; 22 – protective cap; 23 – clutch release cylinder (working cylinder); 24 – fork release spring; 25 – tension spring bracket.

Clutch pedal and master cylinder

1 – plug; 2 – main cylinder body; 3 – bypass (compensation) hole; 4 – fitting gasket; 5 – fitting; 6 – lock spring washer; 7 – piston of the main cylinder; 8 – sealing ring; 9 – pusher piston; 10 – hook; 11 – bracket for clutch and brake pedals; 12 – clutch pedal servo spring; 13 – clutch pedal release spring; 14 – clutch pedal travel limiter; 15 – clutch pedal; 16 – piston pusher; 17 – protective cap; 18 – retaining ring; 19 – inlet; 20 – sealing ring (ring valve); 21 – piston bypass hole; 22 – working cavity of the cylinder; 23 – spring; 24 – gasket.

Slave cylinder and clutch release fork

1 – clutch release bearing; 2 – ball joint; 3 – clutch release fork; 4 – pusher; 5 – adjusting nut; 6 – lock nut; 7 – tension spring; 8 – housing plug; 9 – fitting for bleeding; 10 – cylinder body; 11 – sealing ring; 12 – protective cap; 13 – piston; 14 – seal; 15 – plate; 16 – spring; 17 – support washer; 18 – retaining ring.

Main malfunctions of the clutch 1. Incomplete disengagement of the clutch (the clutch “drives”); 2. Incomplete engagement of the clutch (the clutch “slips”); 3. Jerks when the clutch operates; 4. Increased noise when disengaging and engaging the clutch.

Popularity: 11%

Repair

In order to repair the clutch cylinder, it must be removed from the VAZ 2106. This is done using a 8-mm wrench. Next, secure the part in a vice and release the air from it by unscrewing the special fitting.

The next step is to rotate the part 90 degrees without removing it from the vice. Remove the protective cap, and then the pusher located under it. Next, use a screwdriver to pull out the piston. There will be a spring and a support ring on it. They also need to be removed.

Once the spring and ring are removed, remove the rings. Now that all the parts of the clutch slave cylinder have been removed, they need to be cleaned with gasoline and wiped dry with a rag. Next, reassemble all the parts in reverse order and test it in action. If the symptoms recur, repair will no longer help and a complete replacement of the part will be required. After this, your VAZ 2106 will definitely get a second life, and the problems with the cylinder will disappear.

Complete disassembly of the cylinder

To disassemble the master cylinder, you will need all of the above tools. In addition, a bench vise and rags will be needed.

The cylinder removed from the car is thoroughly cleaned of dirt and brake fluid residues using a rag. After this, it is clamped in a vice so that the plug with the nut remains outside. This plug is unscrewed with a 24mm open-end wrench. Sometimes the plug sits in the socket so tightly that it is impossible to touch it with the wrench. In this case, it makes sense to put a piece of pipe on the key and use it as an additional lever.

Product location

The master cylinder on a VAZ 2107 is located under the hood, directly on the wall separating the interior from the hood, near the driver’s feet. Directly above it is the expansion tank, and next to it are the vacuum booster and the brake master cylinder. Usually, simply looking at the product is enough to determine the problem. The presence of a leak indicates that the part is faulty and requires repair or replacement.

Purpose of the device

Cars are equipped with clutch master and slave cylinders, without which the operation of the mechanism is impossible. The VAZ 2107 clutch master cylinder is designed to push out brake fluid. Below is a diagram from which you can visually find out the operating features of the unit.

When you press the clutch pedal, the piston moves in the device in question, thereby pushing out the brake fluid. This liquid enters the working cylinder through a tube, where the reverse process is observed (the liquid pushes out the piston). Brake fluid drives a piston, which is connected by a fork to the clutch disc. As a result, the clutch disc and flywheel are separated, allowing you to change gear. The GCS is also called the main one, since it is with its help that force is supplied from the pedal when it is pressed.

The need to replace the device: when required

Like all parts of any car, the GVC tends to wear out, resulting in the need for repair or replacement. The simplest breakdown of a product is wear of the boot, which can be determined by the characteristic signs of a fluid leak.

To identify a cylinder malfunction, an initial visual inspection is required. It is possible to repair a failed main circulation system on a VAZ 2107; for this you can look for repair kits, but this is not always rational due to the quality of modern spare parts, so it is easier and faster to replace it entirely. The malfunction can also be determined by the characteristic loss of pressure in the system, which is determined by pressing the pedal. Let’s take a closer look at how to change a faulty VAZ 2107 mechanism.

We change it ourselves

Replacing the VAZ 2107 clutch master cylinder begins with the need to pump out the brake fluid from the hydraulic reservoir. This can be done using a syringe or a rubber bulb. Together with this socket or a 10mm wrench, unscrew the bracket securing the expansion tank and move it to the side to gain access to the cylinder.

The next step involves removing the clutch expansion tank hose. To do this, you need to loosen the hose clamp, then disconnect the hose and position it so that it does not interfere with further work. If you want to remove the tank completely, this is done very simply.

Further actions are performed in the following sequence:

1. Using a “10” wrench, you need to unscrew the pipeline securing nut to the device. Once the nut is unscrewed, the tube can be moved to the side.
2. There is a hose nearby near the steel pipeline, which also needs to be disconnected from the main device. This can be done by loosening the fixing clamp.
3. The GCS is fixed to the body using two fastening nuts. To unscrew them, you will need to use a wrench with an extension and a “13” socket. After unscrewing the two nuts, you can remove the product and drain the remaining brake fluid from it. If it is not possible to dismantle the unit, you can press the clutch pedal, as a result of which it will move.
4. But repairs are usually not rational, so after removing the old one, a new unit is installed in its place. Installation is carried out in the reverse order of removal. After installation, it is necessary to carry out the process of pumping the hydraulic drive, first pouring fuel fluid into the tank. You can find out how the system is pumped from the relevant material on the website.

After the work is completed, you can test the operating features of the new GVC. If necessary, the RCS (working cylinder) should also be replaced, but you can find out more about this in the corresponding material.

How to repair the working cylinder of a classic “seven” clutch?

In certain cases, car enthusiasts prefer to independently purchase not only a clutch repair kit, but also spare parts for cylinder restoration on their own. This option allows you to save some money if you follow the following points:

• Clamp the part in a vice and unscrew the plug at the back.
• Remove the rubber cap.
• Remove the retaining ring from the plug side.
• Extract the internal elements of a node.
• Using a 10mm wrench, unscrew the bleeder fitting.

In order for the replacement of a repaired clutch slave cylinder on a VAZ 2107 to be of high quality, you need to:

• Inspect the condition of the spring and replace it if necessary.
• Replace all rubber seals.
• Inspect the node mirror.
• Clean the fitting.

Before assembly, all parts should be lubricated with brake fluid. You cannot use gasoline or diesel fuel, because the rubber will lose its quality. Change the gasket under the plug only if there are leaks. Having assembled and installed the unit, we finish the process by bleeding the system.

On cars, in addition to the master and slave brake cylinders, there are also clutch cylinders. Many do not even know the purpose of these devices, as a result of which the failure of one of the mechanisms forces the car owner to visit the nearest service station and pay decent money for minor repairs.

In this material we will pay attention to such a device as the VAZ 2107 clutch slave cylinder, what it is, where it is located and why it breaks

Which clutch master cylinder is better to install on a VAZ 2107, articles and prices

To completely replace the VAZ 2107 - VAZ 2101 clutch master cylinder, analogues from other cars are not suitable. Fortunately, there are more than enough original cylinders and analogues on sale. As a rule, the public tries to choose a branded VAZ cylinder with catalog number 2101-1602610 . Other manufacturers also use this article, but when purchasing, it is better to start not so much from the price of the cylinder, but from the level of trust in the brand. A branded master cylinder will cost us 8-9 dollars and this is one of the most expensive options.

Next, you can choose from what is on the counter:

1. The DK cylinder is half the price of the branded one, but often leaks due to poor-quality plug gaskets. As a temporary option, it will do.
2. BAZALT , price about 200 hryvnia (about 7 dollars), Basalt and Phenox are highly not recommended due to the disgusting quality of mirror polishing.
3. Excellent German Metelli , price approximately equal to the original one, factory article number 55-0014G .
4. German ATE, HORT do not cause any complaints, the price is around 10 dollars.
5. There are a lot of Chinese cylinders, like AT 2610-001H , the price is about 6 dollars, the quality is unstable.

Instability in China

Upon completion of the master cylinder repair work, fill in DOT4 brake fluid from any manufacturer and bleed the clutch drive in the same way as bleeding air from the brake system.