Caliper for VAZ 2110: features and repairs

Symptoms of mechanism malfunction

The design of this mechanism is very simple, but it is the most important component of the braking system. If the brake caliper of the VAZ-2110 is in good working order and operates in normal mode, then this directly affects the braking distance of the car. In case of sudden braking, you have a chance to win several “golden” meters, which can protect you from a fatal outcome.

Among the main symptoms of breakdowns of this mechanism are the presence of smudges near the front wheel, as well as an increase in braking distance. But similar symptoms can also appear when tubes, hoses are destroyed, or the fluid level in the system decreases. Therefore, before repairing the caliper, you need to make sure that it is faulty.

Major breakdowns

The front caliper of the VAZ-2110 is a structural element that holds the brake pads and is responsible for the level of pressure of these elements on the metal discs. It also helps ensure even pad wear, which guarantees effective braking in any situation. The body is made of aluminum alloy and the piston is made of steel.

Between these elements there is an oil seal that prevents brake fluid from leaking out of the system. The main caliper failures are as follows:

1. The appearance of oxidation on the surface of the guide elements.
2. Oxidation on the main piston, which leads to deterioration of the mechanism.

Failure can be identified by uneven wear of the pads, as well as by an increased braking distance. If such malfunctions are detected, be sure to change the pads.

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

Diagnostics

To check the front brake caliper of the VAZ-2110, you will need to perform the following steps:

1. Assess the condition of the metal piston and the ease of its movement inside the cylinder.
2. Check for metal oxidation, oxide formations or build-ups, or moisture on the elements.
3. Assess the condition of all rubber boots.
4. Check the condition of the VAZ-2110 caliper guides. You must make sure that there is no abrasion, deformation or scuffing on their surface.

Any damage to the caliper body and its and other elements should alert the driver. In this case, it is necessary to change the mechanism.

Brake fluid

Any brake fluid that is used in automotive systems absorbs moisture very well. It is hygroscopic, therefore it oxidizes the piston mechanism from the inside, which leads to failure of structural elements. This makes the piston stroke more difficult and the brake pads wear unevenly.

The front wheels may become jammed. For these reasons, it is necessary to replace the brake fluid. Its service life is about 90,000 km, but not more than two years. These solutions contain many useful additives that improve cooling and increase braking efficiency.

But over time, under the influence of high temperatures and pressure, these additives evaporate. And the consistency of the brake fluid becomes more like water, and this reduces the efficiency of the system.

Repair kits

You can purchase special kits designed for caliper repair. But there is no point in purchasing it. It is much better to replace the VAZ-2110 caliper. In this case, you will increase the life of the entire braking system and also improve its reliability. Such repair kits contain the lubricant that is necessary for the piston and guides.

You cannot use graphite lubricant such as CV joint or Litol-24, as this will cause the protective shock absorbers to swell and the guides to simply oxidize. As a result, repairs will not bring the desired effect for a long time.

VAZ-2110 caliper maintenance and repairs

It is mandatory to service the VAZ caliper after each replacement of brake pads, as well as in the event of a forced inspection due to its malfunction, for which it is first necessary to check the condition of all rubber elements, shock absorbers and anthers. It is also imperative to replace the grease for the caliper guides. You need a good synthetic based silicone lubricant that can withstand high temperatures.

If you had to buy a repair kit, it contains such lubricant, all the necessary gaskets, new guides and a piston. The price of such pleasure will cost you about 500 rubles. Buying a new VAZ-2110 (2112) caliper, depending on the store and region of Russia, will cost from 1000 to 1500 rubles.

To remove the piston from its seat, it is necessary to create the appropriate force using an air compressor (pistons are repaired one at a time, the stroke of the second is blocked, for example, by a wooden block). With the same success, when removing the product from the car, you can press the brake pedal without disconnecting the VAZ 2112 caliper from the brake hose. It is advisable to use a rubber adapter in order to absorb the sharp impact of the freely moving piston and its “shot”.

VAZ 2110 caliper repair

The piston is pushed back using a special clamp. In this case, the boot should be bent to compensate for excess air pressure. The hole for the piston and for the guides are cleaned and washed with carburetor cleaning fluid, all gaskets, boots and seats are also thoroughly lubricated.

The main malfunction of the front wheel brake cylinders on the VAZ 2110-2112 can be considered their jamming, as a result of which, even when the brake pedal is released, the cylinder does not immediately return to its original position. Also, problems with the passage of brake fluid from under the rubber are possible, which is also not normal.

To replace this part yourself, you will need the following tool:

• 13 mm socket head
• Ratchet handle and crank
• Hex bit or similar bit for 10
• Socket wrench 13
• Special split wrench for brake pipes and hoses

Removing the caliper

The mechanism is of a very simple design; dismantling can be done without much difficulty. Even a novice motorist can cope with such work. In order to remove the VAZ-2110 caliper, you will need to perform the following steps:

1. Loosen the wheel bolts on the side being repaired.
2. Raise the side to be repaired using a jack and remove the wheel completely. Install it under the bottom of the car. This will protect you in case the car suddenly falls off the jack.
3. Cars of the tenth family have the caliper attached to the bracket using two M17 bolts. They need to be unscrewed. If you can't strip the threads, use a penetrating lubricant.
4. Unscrew the brake hose, which is located at the top of the caliper.

When dismantling, evaluate the condition of all rubber tubes. If there is damage on them, even small cracks, it is imperative to install new elements. Such breakdowns can lead to the brake system depressurizing while driving.

VAZ 2110. Brake system HPB 286×26mm with 6-piston caliper.

Recently, there has been a fashion on VAZ cars - the construction of turbo engines with a power of 250-300 or more hp. With such a herd under the hood, a standard braking system, which was designed for an engine power of 80-100 hp. not enough at all and it is not able to withstand one braking from 100 km.h.

There are different options for upgrading the standard brake system, everyone knows them, using a thin brake disc no more than 22 mm thick and a small brake pad. This braking system cannot show stable braking performance from high speeds; the brake disc is prone to rapid overheating.

HPB offers a ready-made brake system installation kit for the entire family of front-wheel drive VAZ vehicles.

Included:

Two-piece brake disc 286x26mm with directional ventilation of internal channels.

4 or 6 piston caliper with large brake pad, similar to Ferodo FRP216. The most common brake pad for AP-Racing calipers.

Reinforced brake hoses, adapters, bolts.

It is also possible to manufacture a brake system for wheels R16 304x26 and R17 330x32, R17 345x32mm using a 6-piston caliper.

This braking system provides high braking efficiency and resistance to overheating, even after several braking sessions from 200 km/h. until it comes to a complete stop.

All sets of brake systems for VAZ vehicles are equipped with SPORT pads; for an additional fee, it is possible to install TRAC brake pads.

Below is a VAZ 2110 car, prepared by FP- Motors.

The engine was converted from a standard carburetor, 8 valve, to an injection 16 valve with a TD04 turbine. Approximate power is about 300 hp.

Disc brakes were installed on the rear axle while retaining the parking brake.

The suspension features front wishbones, a thicker stabilizer bar, sports shock absorbers and lowering springs.

HPB
286x26mm brake system was installed

Standard brake system VAZ

Brake system HPB 286×26mm 6-piston caliper.

The cost of the set is 41,000 rubles.

For questions about tuning a VAZ car, you can contact the Tuning Atelier FP- Motors

.

Tuning VAZ, Turbo VAZ, Tuning Brakes VAZ, Sports brakes for VAZ.

Installing a new caliper

Installation of the device is carried out in the reverse order. To do this you need to do the following:

1. Install the brake caliper housing and tighten the mounting bolts.
2. Tighten the bolts using a 17mm wrench.
3. Push back the locking plate and unscrew the bolt with a 13mm wrench to remove half of the caliper.
4. The piston must be completely pressed inside the mechanism and new brake pads must be installed.
5. Reinstall the caliper half and tighten the nut. Bend the locking plate using a chisel.
6. Screw on the brake hose.
7. Bleed the entire system to get rid of any air in it.

After bleeding the system, it is imperative to put rubber plugs on the fittings. With their help, these elements are protected from moisture and dust. And the next time you pump, unscrewing the fittings will be much easier.

Caliper repair

If you decide not to replace, but to repair the mechanism, then you can purchase a special kit for this purpose. It consists of the following components:

1. Gaskets.
2. New piston.
3. Guide elements.

The cost of the repair kit is about 500 rubles. And a new caliper for a car of the tenth family, depending on the greed of the seller, may cost 2-3 times higher.

But before installing the new elements that are included in the kit, it is necessary to completely disassemble the VAZ-2110 caliper. To do this you will need to use an air compressor. Connect it to the hole for the brake pipe, and then gradually supply air. It is advisable to install a rubber spacer or a wooden block under the piston. This will avoid a shot, since the piston moves freely.

A similar action can be performed immediately before removing the mechanism. To do this, you do not need to disconnect the caliper from the system; instead of the brake pads, install a small wooden block. Gently press the brake pedal to build up pressure in the system. In this case, you will lose some amount of liquid, but if you were planning to fill in a new one anyway, then this is not a problem.

Installation of a new piston is done using a clamp. Be sure to bend back the boot to avoid damaging it. Before installing the piston, it is necessary to remove contaminants on the internal surfaces with non-aggressive liquids. It is not recommended to use liquid to clean the carburetor, as it can damage rubber and plastic products.

Checking the caliper and restoring it

The caliper is installed on the front and rear brakes. Its verification and restoration can be carried out independently, but, in the absence of the necessary practical skills and theoretical knowledge, it is best to turn to professional specialists. Let's consider in theory a method for checking and restoring a caliper on a VAZ 2110, the price of which is one of the lowest on the market.

The main task comes down to properly disassembling the caliper, cleaning it of old grease residues, applying a new special compound and checking the integrity of the rubber seals. First you need to gain free access to the front brake mechanism, which is located directly behind the wheel. For these purposes, supports are installed that help to easily and quickly remove the wheel.

After this, they begin the process of replacing the brake pads on the front caliper of the VAZ 2110. To do this, you need to remove the lower bolt, which is responsible for fastening the caliper, using a screwdriver, the body of which can easily be tilted up. When replacing old brake pads, you should remember their location, since the installation of new parts should be carried out in the same place.

If the VAZ 2110 caliper body was folded up and the brake pads were removed, then you can proceed to the next stage. In this process, you will need to unscrew the upper bolt responsible for fastening the caliper. It is worth noting that the line and brake fluid must remain connected.

Next, the bolts that serve to connect the knuckle and caliper bracket are unscrewed. After removing the bolts, you can remove the bracket (along with the brake pad clamps and guides). Subsequently, the piston is removed from the caliper body. It can be quite difficult to do this yourself, so you can use the services of professional auto repairmen working at service stations.

If you decided to check and restore the VAZ 2110 caliper yourself from start to finish, then you can try to carry out the following steps:

• conveniently position the caliper body without disconnecting it from the brake line.
• press the brake pedal and release it only when the piston is pressed out of the cylinder by the pressure.

Do not be alarmed if liquid suddenly leaks from the cylinder, as this is quite normal for removing the piston using the above method. Next, you need to interrupt the brake line connection and also plug it (to prevent further fluid leakage). Once the so-called “blockage” has been established, the process of disassembling the “tens” caliper can be considered successfully completed.

It is worth considering the fact that the above steps do not cover the replacement and reassembly of the brake system. But, based on their complexity in describing the initial stage, one can understand how complex a part the caliper is.