Replacing the rear brake cylinder of a VAZ-2110: step-by-step instructions

The peculiarity of the VAZ-2110 brake system is that the circuits are divided diagonally; it is this mechanism that ensures a high level of driving safety.

The brake located in front and the left one at the rear operate from a single hydraulic drive, the remaining 2 are also from a joint, but different one. Thus, if one circuit of the brake system has failed to function, you can solve the problem by replacing it.

Why is the rear brake mechanism acting up?

The hydraulic drive built into the VAZ-2110 combines in its internal design a booster and a dual-circuit pressure controller designed to control the rear brakes.
If the rear cylinder is not working correctly, problems can provoke and create an emergency situation at any time when the vehicle is moving along the roadway. To prevent this from happening, the part should be repaired in a timely manner. There is nothing surprising in replacing an old type of rear brake cylinder (RBC) with a new one; nothing lasts forever. Auto parts stores offer car enthusiasts the opportunity to purchase parts from the best manufacturers that will last a long time and guarantee safety on the road.

Braking system design

The most important component of the VAZ 2110 brake system circuit is a vacuum booster and a dual-circuit regulator. The latter is responsible for creating pressure in the rear brake devices.

The brake drive is equipped with a piping system, which is divided into two circuits, brake devices and hoses. They allow the front and rear wheels to brake.

To activate the braking system, a special pedal is located inside the passenger compartment at the driver’s feet. In the VAZ 2110 car it is located in the middle. The main elements of the hydraulic drive are:

1. Vacuum booster. Its design helps create pressure directed towards the master cylinder piston.
2. Pressure regulator drive. Through it, the brake fluid is directed to the rear devices of the braking system.
3. Directly the brake pressure regulator of the VAZ 2110. Its function is to be responsible for the pressure force. The unit reduces or increases this indicator, depending on the load on the rear axle of the car.
4. Master cylinder with reservoir and pistons. On the filler neck of this tank there is a sensor that monitors the emergency level of brake fluid.
5. Front wheel brake mechanism. Its design includes cylinders, pads and a disc, plus a special alarm that warns of wear or malfunction of the lining.
6. Rear wheel brake mechanism. Here the system is not disk, but drum. At least, this is the design the factory envisages. Some VAZ 2110 owners believe that drum mechanisms are not reliable and efficient enough, and therefore install disk devices in their place.

Installation

Installation of the new element is carried out in the reverse order. Before installation, you need to thoroughly clean the brake mechanism from dirt using sandpaper. Degrease the seat with white spirit.

So, first you need to open the hood and add brake fluid to the maximum level. It is not recommended to mix different classes of products. Cars of the “tenth” family are filled with RosDot-4 class fluid. Please note that during pumping the level in the tank will drop. As soon as it drops 1.5 centimeters, you need to top it up again. Next we need an assistant. He will press the brake pedal at your command. So, unscrew the cap from the bleeder fitting and put the hose on it. We put its second end into a plastic bottle. We give the command to the assistant. He must press the pedal 5 times and at the last stage press it “to the floor”. At this time, you will observe how aired liquid flows out of the fitting.

Instructions

So, how to replace the rear brake cylinder yourself? The VAZ needs to be placed on a flat area and the rear part must be jacked up, having first removed the wheel bolts. Next, remove the wheel itself. Getting to the brake cylinder is quite difficult. To do this we need to remove the drum and also remove the pads. In addition, the brake fluid hose is unscrewed.

How to remove the drum? Before dismantling it, you need to thoroughly clean it with a wire brush, removing all rust and dirt. After this, unscrew the 2 guide pins with a wrench. Next, remove the drum from its seat. This is done using a special puller. If this is not available, you can use 2 M8 bolts 6-7 centimeters long. We evenly tighten them with a wrench into the holes. This way the drum is compressed from the hub.

Now we need to remove the rear brake cylinder itself. So, remove the plastic protective cap and unscrew the bleeder fitting itself. To do this we need a key “8”. To remove the tube, you must use a 10mm socket. We break the tightening on the fitting and unscrew the element. Be careful - brake fluid will flow out of the tube. Wear protective rubber gloves when working. Next, unscrew the bolts securing the rear brake cylinder itself.

Repair kit for rear brake cylinder VAZ 2110

Usually, when the rear brake cylinder fails on VAZ 2110 vehicles, you can observe a decrease in the level of brake fluid in the reservoir. This occurs due to a violation of the tightness of the piston and its rubber. To fix this problem, you need to replace the cylinder with a new one. There is nothing complicated in this procedure, and to perform it you will need the following tools: A 10-point socket with a ratchet and a wrench A special wrench for unscrewing the brake pipes (the so-called split wrench) First, you need to remove the brake drum and rear pads, since access to the cylinder cannot be obtained otherwise. After this, using a split wrench, we unscrew the tube that fits the cylinder from the reverse side: To prevent brake fluid from leaking out, you can plug its end for a while. Then we take the head with a knob and unscrew the two fastening bolts, again from the rear side, as is more clearly demonstrated in the photo below: After which you can safely remove the rear brake cylinder of the VAZ 2110 from the outside, since it is not attached to anything else. The price of a new part produced by VIS is about 300 rubles per piece. If you change in pairs, then naturally you will have to pay about 600 rubles. Installation is carried out in reverse order. If, after installing everything new, the braking efficiency has decreased, and when you press the brake pedal, it sinks more than necessary, it is necessary to pump the fluid through the system. Leaking brake cylinders of the rear wheels of VAZ 2108, 2109, 21099 cars are a very common malfunction.

Required Tools

- 10 mm spanner

- 12 mm spanner

- 13 mm spanner

- a special wrench for unscrewing the brake pipe

Preparatory work

— place the car in the pit, the handbrake should be lowered, the wheels should be supported

— loosen the rear wheel bolts, jack it up and remove it

— weaken the tension of the parking brake cable (handbrake)

To facilitate this operation and improve access to the parking brake actuator adjusting nut, you can disconnect the connection between the muffler and the resonator. Using a 13 mm wrench, unscrew the nuts securing the clamp at their connection and disconnect it.

Using a 13 mm wrench, unscrew the lock nut on the handbrake rod with another 13 mm wrench while holding the adjusting nut. Using the same wrench, unscrew the adjusting nut while holding the handbrake rod with pliers.

- unscrew the guide pins of the brake drum and remove it

If the pins do not turn away, lightly tap them with a hammer. If the drum cannot be removed, we also tap it with a hammer on all sides through a wooden spacer. We clean its mounting hole from contamination and treat it with a high-pressure spray.

Diagnostics and repair

From the signs listed above, it is easy to understand that in most cases there is only one source of problems - rubber products that have become unusable. The cuffs crack and swell, as a result they leak liquid and close the discharge holes. Hence the recommendation: all “rubber bands” of the brake system should be changed at intervals of approximately 100 thousand km, without waiting for critical wear.

Before checking the GTZ for operability, make sure there are no other faults:

1. Inspect the wheel assemblies from the inside for leakage of brake fluid from the working cylinders.
2. Check the integrity of the expansion tank and the fluid level in it.
3. Start the engine and at idle speed, press the vacuum take-off pipe to the amplifier. If the engine speed has increased noticeably, there is an air leak and the master cylinder is most likely working.

A clear symptom indicating a breakdown of the main hydraulic cylinder is drops of brake fluid on the body. If you discover a leak, feel free to dismantle the unit and disassemble it to look for the cause. Another common problem - fluid flowing through the seals - is diagnosed as follows:

1. Open the cover of the expansion tank and place an assistant in the driver's seat.
2. Listening to sounds in the tank, give the command to an assistant to press the pedal.
3. If the pedal moves easily and gurgling is heard in the reservoir, liquid is entering there. The reason is that worn cuffs are unable to create pressure in the circuits; liquid seeps through the leaks and enters the container.

Also, problems with the GTZ are indicated by jamming or too little pedal travel. Sit behind the wheel, press it several times, and start the engine while holding the pedal with your foot. If it sinks to the floor or does not budge, disassemble the hydraulic cylinder.

To replace or repair the master brake cylinder, you need to remove the unit from the vehicle. Work is carried out in the following order:

1. Suck out the liquid from the tank with a syringe. If the cuffs are leaking, press the pedal several times and suck out the excess fluid.
2. Remove the expansion tank.
3. It is not necessary to drain all brake circuits. Substituting a small container, unscrew the nut of the first tube and carefully move it to the side, plugging it with a wooden stick.
4. Repeat the operation with the second tube, unscrew the fastening of the GTZ flange and remove the unit.

Further actions depend on the design of the master cylinder. If the element is completely disassembled, change the rubber seals. Otherwise, you will have to replace the pistons assemblies.

Pre-wash the body and all openings with alcohol; do not use gasoline. After assembly, add fluid and bleed the brake system to remove air.

Tags: control systems, braking system

There always comes a time when some problems arise in the operation of a part. If the brakes fail during a trip, this means there is a danger for the driver and passengers. The brake wheel cylinder is a very important part of the entire brake system.

It converts the pressure exerted by the fluid into a force that is exerted on the brake pads. Therefore, it is necessary to replace the master cylinder in time if irreparable problems arise with it.

When the driver brakes, he exerts an effect on the brake pedal, and in order for this effect to be realized, there is a part - a rod that acts on the piston of the main cylinder. It affects the brake fluid, which then affects the cylinders. During this process, special pistons press the brake pads against the discs (sometimes drums). The differences arise from different types of braking systems.

Below are instructions for replacing the master cylinder. She will help you make quality repairs with your own hands:

• reasons why the brakes failed;
• the ability to repair the brake master cylinder;
• tools necessary for work;
• replacing the main cylinder;
• its final removal;
• cylinder installation;
• improvement of the main brake cylinder.

Determination of breakdowns of the GTZ VAZ-2110

You can determine the faulty part yourself; to do this, you just need to know what to look for:

1. Leaks in the brake fluid on the vacuum booster at the junction with the main brake cylinder indicate that the cuff in the cylinder is worn out.

Leaks on the vacuum booster indicate wear on the seal in the cylinder.

In any case, you need to determine for yourself whether it’s worth bothering with disassembling the GTZ and repairing it or immediately installing a new part.

Is it worth buying a repair kit and is it profitable?

Buying a repair kit can save the money spent several times, but it will increase the time costs.

Based on the cost of the GTZ at 1,000 rubles, you need to think carefully about whether it is worth disassembling the brake cylinder for such a sum. Repair kits can be incomplete or complete. In any case, you need to purchase a complete one, since no one will measure the forces on the return springs.

You can also repair the brake master cylinder yourself.

An attempt to save money will result in a long procedure of disassembling, washing and drying all parts. When washing, you need to make sure that no gasoline or oil gets on the rubber parts, as this can damage them.

Therefore, the use of a repair kit can only be justified in the following cases:

1. The assembled part is not available for sale.
2. Inability to allocate 1,000 rubles for a purchase.
3. The desire to understand the brake system with your own hands from beginning to end.

In other cases, it is better to immediately install the assembled part.

How to check the condition of the VAZ-2110 air conditioning center

Before you begin replacing the brake cylinder located at the rear, you need to inspect the car and establish an accurate “diagnosis”, especially since no special equipment is required for this - just a set of basic knowledge and your desire to understand the breakdown of the VAZ-2110 brake system.

See if the car has malfunctions and problems that are direct symptoms that the rear brake cylinder cannot be restored:

1. Poor brake performance. For example, when pressed, the pedal easily falls down, and checking the brake system and adjusting its individual mechanisms did not give a positive effect.
2. Brake fluid is coming out of the cylinder and there are marks on the shield. Even disassembling the unit and replacing the cuffs will be unsuccessful; the part will have to be replaced.

Finalization

Many, believing that the brakes are bad and repairs do not help them, decide on significant alterations and tuning. For example, tuning the brake system of a VAZ 2110 may include replacing the rear drum mechanisms with disc ones.

It is especially important to know here that braking of the rear wheels should be softer and occur a little later than the front wheels to prevent skidding. Another possible tuning idea is to replace the vacuum booster and the brake master cylinder

Instead of standard ones, they are installed from Lada Priora. This usually helps, first of all, in that vibration is not felt and the pedal works with optimal force.

Another possible tuning idea is to replace the vacuum booster and the brake master cylinder. Instead of standard ones, they are installed from Lada Priora. This usually helps, first of all, in that vibration is not felt and the pedal works with optimal force.

And do not forget - after each intervention in the brakes, they need to be pumped.

Sources

• vazweb.ru/desyatka/tormoza/tormoznaya-sistema.html
• vaz.today/0-5-tormoznaya-sistema-remont-osobennosti
• luxvaz.ru/vaz-2110/45-tormoznaya-sistema.html

Features of the brake system on the VAZ-2110

The brakes on the VAZ-2110 have diagonal separation of the contours.

The device of the brake system of the VAZ-2110.

This allows if one brake circuit fails, it can only be repaired. Often car owners have to change the brake cylinder on one of the rear wheels. The first problem that novice car enthusiasts face is finding the location of this very cylinder. To see it, just remove the brake drum.

Brake cylinder location.

It is the brake cylinder that pushes the pads, forcing them to press against the walls of the drum.

Signs of a broken brake cylinder

A faulty rear wheel cylinder can be detected as follows:

1. The wheel stopped braking.
2. The wheel is jammed or jammed.
3. The brake cylinder is leaking.

If the first two points are quite obvious, and the cylinder malfunction can be determined visually, then in the third case everything is much more complicated.

Brake fluid leaks on the inside of the wheel.

A cylinder leak will sooner or later lead to it jamming, and if this happens on the road, then major troubles cannot be avoided. To detect a leak, you need to pay attention to indirect signs. If there are visible leaks of brake fluid on the wheel, and the fluid itself runs out very quickly, you need to urgently remove the rear wheel and drum.

Wheel leaks do not always mean a broken rear brake cylinder. Most often, this is a brake hose that has burst or frayed.

Reasons why the brakes might fail

Any problems during the braking process reduce its effectiveness, which can lead to dire consequences for everyone - the driver, passengers, and other road users. Very often, problems arise simply because the driver uses low-quality brake fluid.

If your car suddenly loses brakes, this may be due to several reasons, the main thing is not to blame the master cylinder for all the problems. Below are the reasons why the brakes on a car fail:

1. One of the main causes is usually a leaking slave cylinder. Gradually, slowly or quickly, all the contained liquid flows out of it.
2. You should also check the level of brake fluid in the reservoir and the condition of the main brake.
3. If traces of smudges are noticeable on the main brake, then this is the reason.
4. Another possible cause of brake failure could be that the brake line is torn. For example, rubber brake hoses could fray, partially rot in some places, or get punctures.
5. The working cylinders may have jammed;

If it is nevertheless noticed that the main brake cylinder is not working:

• it will show where traces of brake fluid leaks appeared;
• it will be impossible to press the brake pedal;
• on the contrary, the brake pedal can move on its own without the driver making any effort to do so.

Master brake cylinder with reservoir: 1 — master cylinder body; 2 ~low pressure sealing ring; 3 — drive piston of the “left front-right rear brake” circuit; 4 - spacer ring; 5 - high pressure sealing ring; 6 — pressure spring of the sealing ring; 7 — spring plate; 8 — piston return spring; 9 — washer; 10 — locking screw; 11 — drive piston of the “right front-left rear brake” circuit; 12 — connecting sleeve; 13 - tank; 14 - emergency brake fluid level sensor; A - gap.

Therefore, it is possible to repair the VAZ 2110 brake cylinder, but not always. Most often, if it leaks, a repair kit will help fix the problem and restore the cylinder’s functionality. If the internal mirror in the cylinder is damaged, then, unfortunately, nothing can be corrected, since grinding is prohibited. If everything is not so scary and repairs are possible, you can do it yourself, because the price of the repair kit is quite reasonable, and almost every motorist can afford it.

What tools are required to replace a brake master cylinder?

• key to 17;
• key to 10;
• half-liter bottle of brake fluid;
• syringe;
• brake fluid.

How to extend the service life of a new fuel pump

Before installing the part, you need to know the rules that will further extend the service life of the part:

1. Choose the best products in the store, created by experienced manufacturers you can trust. By saving on brakes, you won't end up cheap.
2. Pay attention to marriage. A defective product is characterized by the pistons coming out of the cylinder structure by a couple of millimeters. However, this is quite enough to cause another breakdown and replacement of the part.
3. Buy good brake fluid.
4. Ideally, you need to change not one cylinder, but two at once. As practice shows, if one element of the system has already failed, the second one will not be long in coming either.

Main causes of malfunction

The VAZ 2110 caliper is structurally an element that holds the brake pads and is responsible for the degree of their pressure on the brake discs. It is also responsible for uniform wear of the brake pads and guarantees the driver reliable braking in extreme situations.

Thus, the importance of the caliper in the operation of the car is difficult to overestimate

If by this time you have a completely reasonable question, what can happen to the caliper on a VAZ 2110 (2112), we will be happy to answer you. The main cause of malfunctions is “acidification” of the moving elements, coating them with an oxide film, clogging due to the destruction of protective boots or the use of improper lubricant, namely:

• acidification of the main piston mechanism;
• acidification of guides.

Piston mechanism and caliper guides VAZ 2110

A clear sign of problems that the caliper can cause on VAZ cars is uneven wear of the brake pads and an increased braking distance. In this case, the VAZ pads must be changed, and the caliper mechanism itself must be subjected to comprehensive diagnostics:

• check the condition of the piston, its degree of freedom, the presence of moisture, metal oxide, oxide formations and build-ups, the condition of the protective boots;
• Similarly, check the condition of the guides, make sure that there are no uncharacteristic scuffs, abrasions or deformations of the rod on the surface.

We must also not forget about regularly replacing the brake fluid in the system. This should be done approximately every 40 thousand km. mileage of VAZ-2110.

Since brake fluid is hygroscopic, it easily absorbs moisture, thereby oxidizing the piston mechanism and causing it to fail. The piston stroke becomes difficult and uneven wear of the brake pads and wheel wedge occurs.

Main elements of the front brake system

This:

• Brake disc – position 1 in the photo.
• Caliper, pos. 3.
• Brake pads – 4.
• Cylinder – 5.
• Piston – 6.

For the front wheel, the brake mechanism has automatic adjustment of the gap between the disc and pads, with a pad wear indicator and a floating caliper. The bracket includes the front brake cylinder of the VAZ 2110 and the caliper; they are secured to each other with bolts. The piston is installed in the cylinder cavity with an o-ring. The optimal clearance between the brake disc and pads is maintained due to the elasticity of the installed ring. How to change the brake cylinder of a device with your own hands is suggested in the article.

Required spare parts

Just 10 years ago, old pads were not replaced; they were glued on, linings were changed, or they were riveted. Today on the market you can easily purchase the entire mechanism. To replace, you need to prepare new pads. Experts believe that it is better to install replacement factory parts, article number 2110-3501080-60 (TIIR-260), 21100350180082 or 2110-3501080. There are other opinions. Some motorists believe that pads from well-known brands provide the best braking parameters on the VAZ 2110, 2111, 2112. These are parts from brands such as Brembo, ABS, Ferodo, TRW, Bosch, Optimal or Delphi.

Is it possible to repair the rear brake cylinder?

This is indeed possible, you just need to have the skills to disassemble the part and know the design features. To properly disassemble the product, repeat the following steps:

1. Remove the protective caps.
2. Remove the pistons and elements that regulate the automatic gap from the body; this mechanism appears between the drum and the brake pads.
3. After turning the piston and fixing it, you can already unscrew the stop screw.
4. Slide out the O-ring and spring support cup.
5. Disconnect the thrust ring and screw from each other.

Now carefully inspect the details:

1. All surfaces must be smooth; scratches and roughness are unacceptable, as this will cause brake fluid to leak.
2. If there are defects on the mirror base, use grinding or lapping - the latter method is gentle. The inner diameter of the cylinder must retain its dimension.
3. Replace seals and protective caps.

Step-by-step video instructions for replacing the rear brake cylinder are presented below:

The process of replacing the VAZ-2110 brake cylinder

If the cause of the non-functioning brakes on one of the rear wheels is determined, then you need to begin the replacement process. First you need to dismantle the old part. It happens like this:

First you need to remove the rear wheel.

We unscrew the wheel by jacking up the car and placing additional support under the bottom.

It is better to unscrew the tip of the brake pipe with a slotted wrench.

It is more convenient to unscrew the brake cylinder mounting bolts using a ratchet head.

When working with fittings and tubes, the main thing is not to break the threads, otherwise you will have to change them too.

Old brake cylinder.

If the parts are difficult to unscrew, it is better to spray them generously with WD-40. When rotating the nuts, you need to make sure that they rotate without tubes. If the tube turns together with the nut, it means it is rusty and stuck to the nut. This part is not allowed for use and must be replaced.

The process of installing a new cylinder

Before you begin the cylinder installation procedure, it is imperative to clean the entire rear wheel brake mechanism from dirt. If you really had to climb into the drum, then you need to carefully examine its condition, at the same time inspecting the pads. If worn, they must be replaced.

• If there has been a cylinder leak, then before installing it, you need to thoroughly clean the pads from all traces of brake fluid. To do this, you can use a file or sandpaper. Under no circumstances should stripping machines be used, as the pad can be seriously damaged.
• The inside of the rear brake drum also needs to be cleaned of dirt, rust and degreased from traces of brake fluid. If the liquid remains in the drum, the shoe will slide during operation. Only after thorough cleaning of all mechanisms can a new cylinder be installed. The assembly procedure takes place in the reverse order of disassembly.

Bleeding the brakes after replacement, should I do it or not?

After the procedure for replacing the brake master cylinder, some inexperienced car owners do not consider it necessary to pump the brakes. If you neglect this procedure, the brakes may fail at the most crucial moment.

It is necessary to bleed the brake system . This procedure is simple, although two people must be involved. The pumping procedure is as follows:

1. We need to pump up the brakes. To do this, the pedal is pressed several times, after which it is held down.
2. At this time, you need to partially unscrew the brake pipe fitting on one wheel.
3. This should remove air from the system. Periodically, an assistant should pump the brakes by pressing the pedal. This procedure must be repeated until fluid sprays out of the tube when you press the brake pedal.

We pump the brakes on each wheel one by one.

This procedure is repeated on each of the four wheels of the car . Before bleeding the brakes on each wheel, you need to add brake fluid to the reservoir. Only after bleeding the brakes can you go out on the road without fear that the brakes will fail at the most inopportune moment.

Tools that will be needed during the replacement process

To replace the brake cylinder you will need a tool.

Before starting any repair work, you should prepare thoroughly. Replacing the brake master cylinder is no exception. To replace this part you will need:

1. Set of keys. Having a variety of sockets and socket wrenches will be a huge advantage.
2. Screwdriver Set.
3. Round nose pliers will help when changing cuffs.
4. Special “brake” wrench for 10.

In addition, during the replacement process, brake fluid will spill out, which is generally advisable to replace with new one. DOT-4 brake fluid is suitable for the VAZ-2110.

The process of removing the old part

In order to remove the brake master cylinder, you need to open the hood and do the following:

To get to the part, you will first have to remove the sound insulation. You should not try to tear it off, as it is secured with bolts. Therefore, you should arm yourself with a screwdriver and unscrew all the fasteners. If the sound insulation is not removed after this, it means that not all fasteners have been unscrewed. If you pull the element, it can be damaged. After this, you can start replacing.

We unscrew several screws using a Phillips screwdriver to remove the sound insulation.

Disconnect the terminal with wires.

We disconnect the tubes and put rubber caps on them.

Unscrew the fastening bolts.

Remove the brake cylinder.

At this point, the dismantling process can be considered complete.

Vacuum booster

The braking system of a car certainly cannot be called perfect, so it has to be supplemented with devices that help improve efficiency. One of them is a vacuum booster.

Application and purpose

Today, a vacuum amplifier is in great demand because it is highly efficient. Its tasks are extensive, but the amplifier copes with them all perfectly:

• The degree of resistance of the brake pedal increases;
• Reduces the load on the brake system;
• Acts as a highly efficient auxiliary unit;
• Has a positive effect on the service life of the brake system, etc.

This element has the following components:

• Dense body, for the manufacture of which a high-strength polymer is used;
• The diaphragm, which is also called the collecting node;
• Monitoring or control specialized valve;
• Pusher. It allows you to return the engine elements to their original position when there is no power;
• Main piston rod of the brake system cylinder (main);
• Switch return spring.

The body of this spring has two cellular divisions, which are divided into vacuum and atmospheric. Cells are often called chambers.

1. The vacuum chamber is a cell directly connected to the brake master cylinder.
2. The atmospheric chamber is a cell located opposite the brake pedal. Its open part of the body rests on the brake pedal.

It is also worth noting the diaphragm, which performs two very important tasks:

• Corrects the position of the piston in space;
• Pumps brake fluid to the main brake cylinders.

Installing a vacuum booster involves a serious change in the sensitivity of the pedal, so it is strongly recommended not to apply a large and sudden force to it in the “first couple”. Pressing should be done carefully and smoothly.

Malfunctions and ways to check them

It is possible that you may need to replace the vacuum booster on your VAZ 2110. The cause may be various malfunctions, the characteristic symptoms of which are as follows:

• When you press the brake pedal, a hissing noise occurs, and at the same time, the engine speed often increases;
• The car starts to shake;
• Spark plugs stop working efficiently;
• Fuel consumption increases noticeably.

Before replacing the vacuum booster on a VAZ 2110, it should be checked. This procedure is performed as follows:

• As with normal bleeding of brakes, with the engine not running, press the gas pedal several times;
• After 5 or 6 presses, keep the pedal in the down position, resting it on the floor, and start the engine;
• After starting, the pedal itself will move forward a little.

There is also a high probability of damage to the diaphragm, which forms a hole over time. You can purchase a diaphragm with a repair kit, the cost of which is no more than 500 rubles.

Replacement

To replace an element, you need to understand the main issue - how to remove the vacuum booster from a VAZ 2110. Directly replacing the old element with a new one will not be difficult, just like the reassembly process.

Therefore, we will tell you about the main thing - dismantling the amplifier. Let's start with the fact that the procedure is not complicated, but it requires accuracy and sequence of steps. If you follow the recommendations, the work will take little time and will not take much effort.

1. Disconnect the block with wires, which includes brake fluid level sensors in its design.
2. Hold the booster check valve with one hand and carefully disconnect the hose with the other. It is advisable to disconnect the hose with a strong hand, since this will require a lot of force.
3. Remove the two bolts connecting the booster and master cylinder.
4. Carefully remove the cylinder from the amplifier.
5. There is no point in disconnecting the brake lines.
6. Give access to the dashboard, which will allow you to unscrew the nuts holding the brake pedal bracket. There should be 4 of them.
7. It is recommended to dismantle the bracket and amplifier through the engine compartment, since there is enough free space for such manipulations.
8. Remove the pin lock plate. To do this, pry the finger with a screwdriver and squeeze it out.
9. Now you can easily disable the brake pedal and booster.
10. To disconnect the amplifier and bracket, you will have to unscrew the two nuts on the mount.
11. A new one is installed in place of the dismantled old vacuum amplifier, and the reassembly procedure is performed in strict sequence of the dismantling process.

Which cylinder is best to buy for replacement?

Rear brake cylinder from Kraft.

If you definitely decide for yourself that you will not go to a service station for repairs, then the spare part necessary for repairs will need to be purchased at a car store. Since spare parts for domestic cars are inexpensive, there will be no problems when purchasing.

When purchasing, you can buy both the original, which has the article number 21050-3502040-00, and a “non-original” from another company. Unlike spare parts for foreign cars, where the original spare part is always better, the situation with spare parts for VAZ is the opposite. It often happens that non-original spare parts turn out to be of higher quality than the original.

Rear brake cylinder replacement instructions

Replacing the rear brake cylinder of a VAZ-2110 looks like this:

1. Raise the car on the lift.
2. To securely secure the VAZ-2110, lock the front wheels.
3. Unscrew the fasteners and remove the rear wheels.
4. Using a rubber hammer, remove the brake disc.
5. Carefully remove the end of the tension spring installed at the top, this spring is located right next to the brake pad.
6. Lift the handbrake lever all the way to the top, you will see how the pads have moved apart, now they can be removed without any problems.
7. Unscrew the brake pipe from the cylinder.
8. Remove the broken cylinder and install a new one in its place.
9. Assemble the knot following the reverse order of these instructions (starting from the last point to the first).
10. Replacing the rear brake cylinder of a VAZ-2110 involves pumping the brakes at the final stage.

Sources

• https://avto-lover.ru/drugoe/remkomplekt-tormoznogo-cilindra-vaz-2.html
• https://AutoBroker-sng.ru/kalina/zamena-zadnego-tormoznogo-cilindra-vaz.html
• https://k-SportRacing.ru/avtoservis/zamena-zadnih-tormoznyh-cilindrov-vaz-2111.html
• https://litezona.ru/remont-zadnih-tormoznyh-cilindrov-vaz-2110/
• https://autobryansk.info/remont-zadnih-tormoznyh-cilindrov-vaz-2110.html

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