Malfunctions of mufflers on VAZ 2110-2112 and their replacement

Composition of the output unit

The exhaust system for a VAZ 2110 car consists of the following elements:

• Exhaust manifold;
• Lambda probe;
• Receiving type pipes;
• Neutralizer;
• Two mufflers: main type and additional.

Not all exhaust components are disassembled; some parts, such as the converter, as well as both mufflers, are replaced entirely.

Exhaust system of VAZ 2110

Mufflers for VAZ 2110 cars

The information contained in the operating manuals or electronic catalogs about the structure of the exhaust system of tenth-generation VAZ cars does not always correspond to reality, which causes some disagreement among car enthusiasts. The selection for cars is carried out on the basis of a specific body type: for example, in the case of front-wheel drive cars in a hatchback body, the muffler is much shorter than in models with sedan and station wagon bodies. The difference in length is explained by the length of the car body.

The parts installed on the tenth family are divided into two body types:

• Station wagon and sedan - VAZ 2110 and VAZ 2111;
• Hatchback - VAZ 2112.

Mufflers for VAZ 2110/2112 cars are classified according to body type

Classification is also carried out according to old and new models. The main difference from similar parts on the Lada Samara is that for the tenth family, subcategories play a significant role. The muffler mounts of older models are made in the form of a hook: they were produced until 2007, and then the mounts were converted to pins.

Mufflers of old and new models differ in the type of fastenings

Design

The main task of the muffler is to reduce the noise level while the car is moving and the engine is idling. The resonator, or additional muffler of the car, is an element located in the middle of the exhaust system. Its design consists of the following parts:

• frame;
• throttle;
• block;
• thermal insulation;
• perforated pipe.

Design of the exhaust system of tenth generation VAZ cars

The structure of the part itself is as follows:

• frame;
• middle obstacle;
• rear barrier;
• rear perforated pipe;
• middle perforated pipe;
• exhaust and inlet pipes.

The structure of the VAZ 2110 muffler and the direction of movement of exhaust gases in the system

The perforated tube is the main component of the direct-flow muffler design. Combustion products entering it effectively expand in its body due to perforation. This operating scheme allows you to speed up the process of removing combustion products several times. Installing such a muffler increases the level of exhaust system resistance by up to 10%, which is significantly higher than without its use.

Description of individual components

To make the structure of such an element as the discharge system clearer, it is necessary to give a detailed description of all components:

• Neutralizer. A unit designed for effective purification and suppression of emissions of harmful substances into the environment. When driving, a car produces substances such as non-combustible hydrocarbons, oxide compounds of nitrogen and carbon. The work of this system is aimed at eliminating them. The design itself is a combination of two ceramic-type components. The surface of these components is coated with special afterburning catalysts, which include rhodium, palladium and platinum. These substances make it possible to purify exhaust gases emitted into the environment by almost 100%;
• Lambda probe. It is a special sensor whose task is to control the composition and amount of fuel that enters the engine. The lambda probe thereby controls the purifier. If the lambda probe does not work properly, then the entire output assembly will quickly become unusable, after which it will have to be replaced;
• Reception pipe. Designed for forced removal of exhaust gases from the cylinders of a power unit. The pipe is made of stainless steel, and its fastening to the collector is carried out using special pins, of which there are four in total. The studs guarantee reliable fastening of the two outlet pipes and the element. In order to combine the exhaust pipe and the neutralizer, as well as an additional muffler, hinged fasteners are used;
• An exhaust manifold. A component that is cast from pure cast iron. The manifold is secured with four studs in the exhaust pipe. Heat-resistant gaskets reinforced with metal are installed between the manifold and cylinder heads.
• Silencers. Necessary for effectively suppressing the exhaust rate of burnt gases. This is necessary in order to significantly reduce the noise level in a type of transport such as the VAZ 2110. The distribution device in this part of the unit is carried out as follows: the additional one is followed by the main one. These two components are connected to each other by clamps and sealing rings and are covered with a special casing on top.

Replacing a muffler on a VAZ 2108/2109 has its own nuances, which can be found here: https://vazweb.ru/desyatka/vyhlop/zamena-glushitelya-vaz-2109.html

Nuances of operation

There are some points that need to be taken into account when operating the VAZ 2110 system:

• Under no circumstances should the vehicle be refueled with leaded fuel, as this will cause damage. It is very sensitive to lead compounds;
• When operating a VAZ 2110 car, you also need to monitor the proper, precise operation of the ignition, since its poor-quality operation leads to the neutralizing part being removed from its working condition. Fuel that does not burn when a spark passes during ignition enters the converter and burns out there. For this reason, the ceramic coating of the component quickly deteriorates;
• Frequent malfunctions will sooner or later lead to complete or partial blockage of the output system, in turn to the failure of the engine and its repair or replacement will be required.

This material will help you quickly and easily repair the muffler on VAZ 2106/2107 cars: https://vazweb.ru/desyatka/vyhlop/zamena-glushitelya-vaz-2107.html

Repair of the VAZ 2110 exhaust system: instructions for replacing the muffler

There is no need to worry; replacing a muffler on a VAZ 2110 is not at all a regular job that will have to be done systematically. Replacing the exhaust system is performed in several situations:

• The muffler begins to make a loud noise;
• Muffler elements burn out;
• Connecting pipes break.

The sound of a burnt out muffler.

On a VAZ 2110, you can replace the muffler with your own hands, which will allow you to significantly save on the services of a service station.

The exhaust system of the VAZ 2110 includes a downpipe (pants), a neutralizer, a resonator and a main muffler.

Photo of the new muffler on the VAZ 2110

Today we will tell you about replacing the muffler, as well as the resonator.

Exhaust system VAZ 2110

How to replace the main muffler on a VAZ 2110–2112 with your own hands

Before starting work, you need to make sure that you have all the necessary tools and auxiliary materials at hand:

• set of wrenches;
• a screwdriver with a flat and thin blade;
• WD-40 liquid;
• Bulgarian;
• new bolts;
• soft fabric.

The procedure for dismantling work

To remove the muffler, you will again have to drive the car into the inspection hole. When parking the car, you need to make sure that the wheels are securely locked (it is better to engage first gear and raise the handbrake).

Removal is carried out according to the following scheme:

1. The front part of the mechanism is secured with bolts. If you can’t unscrew them right away, then you need to spray WD-40 on the fasteners and wait 10 minutes until the grease is absorbed. In the event that the bolts are so badly rusted that they cannot be unscrewed, you will have to connect the grinder to the work and cut off the fasteners.
2. After this, the graphite sealing ring is removed.
3. Next, you can remove the rear part of the muffler from the suspension rubber bands.

The device is removed from under the car.

If unscrewing is difficult, it is recommended to file the bolts

Installation procedure for a new muffler

After which it is recommended to clean the muffler mounting points on the underbody. On old cars, they become so covered with dirt or rust that it is impossible to secure the new plug well without first cleaning it.

After this you can start installation:

1. First, hang new rubber bands on the hooks and secure the back of the device to them.
2. Hang the new element and secure a new graphite gasket at the junction of the two pipes.
3. Then hang the front part of the muffler on the bracket and secure it with new bolts.
4. Check the reliability of all fastenings by loosening the mechanism with your hands. If the product only slightly vibrates, then we can say that the installation was done with high quality.

The muffler is easily fixed with rubber bands

In general, replacing the main “glushak” with a VAZ 2110–2112 does not present any particular difficulties. It can take a lot of time to unscrew or saw off old bolted connections if the mechanism has not been changed for a long time. The remaining stages of work are accessible even to a beginner.

Video: how to replace the “glushak” yourself

How to change an additional muffler

The additional muffler on the VAZ of the tenth family is not attached to the bottom of the car. It is connected to the inlet pipe using ties (clamps). Accordingly, to replace the additional muffler, you need to remove these clamps:

1. First, the main mechanism is dismantled.
2. Then the clamp nut is lowered.
3. Use a screwdriver to open the clamp and move it down the tube.
4. The additional muffler swings and is removed from the pipe.

Replacing the muffler on a VAZ 2110

VAZ 2110 owners are quite lucky, since replacing the muffler is quite simple and does not require special skills or extensive experience. But you definitely need an inspection hole.

The replacement procedure sequence is as follows:

1. The muffler is connected to the resonator through an O-ring on the pipe flare. Plus, the connection is compressed with a clamp, which consists of two parts.
2. The clamp must be dismantled, so remove the ring. Since the O-rings used here are graphite, they should not stick to the metal.
3. Now the old muffler can be dismantled quite easily.
4. Be sure to check the condition of the suspension rubber bands located on different sides of the muffler body. They often end up stretched or covered with cracks. Rubber bands are quite cheap, so buy new ones and replace the old ones with them.
5. The new muffler is first mounted on rubber bands, after which it is inserted into the same new graphite sealing ring between the flares. Use a clamp to compress the connection. Ready!

Changing the resonator

It is also advisable to replace the resonator on a VAZ 2110. This is done after changing the muffler.

New resonator for VAZ 2110

The work of replacing the resonator is performed in the following sequence:

1. The resonator is secured to the muffler with a crimp clamp with an O-ring.
2. It is attached to the neutralizer using a floating flange consisting of two bolts and a flare.
3. On the opposite side of the element there is a so-called fist.
4. Removing bolts is often quite difficult. So that you don't have to suffer, just cut them off with a grinder and buy new bolts. This is the simplest solution to the problem.
5. If you couldn’t get a grinder, use a liquid key. This is a popular product among motorists - WD40 or its analogues. Treat the bolt attachment points with this compound, wait a while, after which the bolts should come off.
6. After removing the bolts, remove the muffler clamp.
7. Remove the resonator from the suspension rubber bands. Check the condition of the rubber bands. If they are worn out, replace them with new ones.
8. Take a new resonator, secure them to rubber and connect them to the muffler so that the pipe leading to the muffler from the resonator is parallel to the ground.
9. If you notice wear, burrs, or traces of rust on the neutralizer fist, be sure to coat the connection with sealant. Moreover, it must be a high-temperature sealant.
10. Armed with new bolts and nuts, tighten the catalytic converter and resonator flanges.
11. The neutralizer is fixed to the resonator with two bolts using a flange connection. The fastening occurs to the states, but there is a receiving pipe, using a spring-loaded connection and two flares. The space between them contains a sealing ring made of graphite or metal asbestos.

How to determine whether a muffler is faulty

All original mechanisms on the VAZ 2110–2112 are adjusted at the factory to ensure a minimum noise level while driving. At the same time, engineers take into account not only the design of the engine itself, but also the car body. Therefore, after tuning the car, the noise level of the muffler increases sharply.

The main malfunctions of the muffler are those factors that interfere with its correct operation:

• burnouts;
• formation of holes in the body;
• violation of tightness.

The use of such an element is unsafe for the driver

The most common problem with silencers on VAZ 2110–2112 can be considered the occurrence of knocking noises while driving. Even new and original products can cling to the bottom of the car and make loud noises:

Not long ago I received my license and became the proud owner of a VAZ 2112, I am satisfied with the car in all respects. A strange problem appeared: the muffler began to knock on the bumper or on the bottom of the car, it’s difficult to say for sure. I went to the service center and they looked at it and they really said the muffler was a little crooked, so they started bending it as a result? It was bent, drove about 20 km and the knocking appeared again, the interesting thing is that it doesn’t knock all the time, but at some moments, maybe when driving or while standing at a traffic light.

Kkiss

https://www.autolada.ru/viewtopic.php?t=142153

Problems with the operation of the device on the VAZ 2110–2112 can be determined visually. To do this, it is recommended to drive the car into a viewing hole or lift the rear of the body on a jack:

1. Inspect the entire exhaust system pipe. The presence of holes can be noticed immediately. In addition, rust spots will indicate that there is clearly damage inside the muffler housing.
2. Rock the mechanism with your hand - if it sways too much, then it’s time to change the fixation rubber bands and the reinforced gasket between the parts of the muffler.
3. After leaving the inspection hole, start the engine and sharply press the gas pedal several times - black exhaust smoke indicates severe burnout of the product.

Why do you need a gasket?

The gasket is an essential element between the main muffler and the resonator. Since all parts of the exhaust system become very hot, the gasket is made of heat-resistant materials.

If, when replacing a resonator or muffler, a gasket is not inserted between them, then the joint will not be as tight as possible. In addition, when driving on uneven roads, the two elements will rub against each other and quickly fail.

There is no need to worry about the procedure for replacing the gasket: it has a convenient shape and is placed on the element pipe with one movement of the hand:

1. Attach the gasket to the resonator flange.
2. Tighten 4 bolts.
3. Make sure the insert is kept level.
4. Tighten the bolts until they stop, without overtightening them.

The product prevents heating of muffler parts

Replacing rubber bands

The VAZ 2110–2112 muffler is attached to the bottom of the car with special rubber hangers. The elastic bands have minimal elasticity, so they can ensure reliable fixation of the mechanism. Usually two rubber bands are used - one is placed at the exhaust port, the other at the compartment with the resonator.

To change the suspension rubber bands, you need to place some kind of support (boards or bricks) under the device to fix its position at the maximum height. After this, the old rubber bands are removed. If necessary, the hooks on the bottom, on which new rubber bands are put on, can be cleaned of dirt and carbon deposits. After which the muffler is easily attached with hooks to the new rubber hangers. The suspensions are removed one by one from the front of the car to the rear.

The special rubber composition allows you to keep the muffler in the desired position for many years

What to do if the muffler is knocking

Knocking is one of the most common problems with silencers on the VAZ of the tenth family. Mufflers can knock only in two cases: when, while driving, they touch the body of the gas tank or swing so that they hit the body.

The knocking can be eliminated by simply replacing the rubber suspensions: during operation they can stretch, so the muffler no longer has a reliable fixation to the bottom. In addition, the “silencer” can often knock because it was installed incorrectly during installation: for example, the flange is not fully tightened or the bolts do not match the length of the bracket. Therefore, the replacement procedure must take into account all the nuances of the correct installation of exhaust system elements.

Replacing the neutralizer

As you can see, the exhaust system of the VAZ 2110 car is designed quite standardly, its repair is not difficult even for a motorist with little experience.

When changing the muffler and resonator, it is likely that you may need to replace the converter. This operation is simple and can be done in a few steps.

The neutralizer serves to dampen vibrations from the engine and prevent them from occurring in the exhaust system of the domestically produced VAZ 2110 car.

If it needs to be replaced, it is done like this:

1. If the old springs and bolts are intact and have no obvious damage, you can continue to use them. They show characteristic signs of wear, be sure to buy new elements.
2. The ring should be replaced in any case, no matter how well the old one is preserved. If gases begin to leak through the old ring, this will lead to very rapid wear and damage to the converter flare and the exhaust pipe.
3. After installing the neutralizer, new bolts are put on, they are carefully but firmly tightened. Moreover, the first thing you need to do is tighten the bolts that secure the resonator.

Mufflers for cars of the tenth VAZ family: original or cooperative

Original mufflers for VAZ 2110, 2111, 2112 cars are produced at. They are famous for their maximum service life, since the manufacturer does not skimp on thickening the walls and using only high-quality types of metals. In addition, the original mechanisms use a special sound-absorbing material - cotton wool. That is, AvtoVAZAgregat provides owners of domestic cars with completely reliable and durable mufflers. The only drawback is their cost. A new part for the “ten” will cost 2,500 rubles.

In turn, fakes are sold for 1 thousand rubles and even cheaper. However, they are made at home in a garage and have a service life 3–5 times less than the original products. In addition, manufacturers of cooperative “silencers” do not use sound-absorbing wool and do not thicken the walls of the resonators. This means that such an element will not absorb all exhaust noise.

The stainless steel body and wall seal make this muffler almost eternal

Before purchasing a new product, you must make sure that the fastenings are at the same level as on the old one. As a matter of fact, the difference between the models for modifications of the VAZ 2110, 2111 and 2112 lies in the fact that the mounting brackets can be distributed differently. There will be no differences for 8 and 16 valve engines.

In some cases, car enthusiasts buy the first muffler they come across for a VAZ of the tenth family and then use a hammer to adjust the fasteners to the right place. By the way, the procedure does not take even five minutes.

It can also be installed on a car and a device made in Poland by Universal. However, it is recommended to immediately buy a resonator, since the input tube of Universal is 2 centimeters shorter than that of AvtoVAZAgregat and cannot be installed correctly in the system.

Occasionally, a mechanism from the Lada Priora is used to equip VAZs of the tenth family. The only drawback of such a product is that the pipe at the end is curved downward, so you have to cut off the end and weld a straight outlet compartment.

How can you increase the service life of a muffler?

Car enthusiasts have tested in practice a simple and effective way to increase the service life of mufflers. Moreover, the technique is suitable for both factory-made mechanisms and home-made products. You need to take a drill and drill a thin hole at the lowest point of the pipe. Condensation will flow out of it, which will prevent the formation of rust and corrosion.

The disadvantage of this method may be the deterioration of noise absorption.

Element device

The exhaust system on VAZ tenth models is practically no different from the systems of previous models - VAZ 2108, VAZ 2109. That is, the mechanism is a pipe that is divided into two elements: the muffler itself and the thickened resonator container.

1 — bracket, 2 — thermal pad, 3 — bracket clamps, 4 — resonator, 5 — suspension rubber bands, 6 — main muffler, 7 — fastenings

Replacing pants

The exhaust pipe, also called pants (due to its appearance), is attached to the manifold using studs and nuts. Its fixation with the neutralizer is carried out by a spring-loaded connection.

1. Remove the exhaust pipe, paying special attention to its attachment to the manifold. Studs are used here, not bolts. They are screwed into the manifold, and connecting nuts are screwed onto them.
2. If the pin is damaged, it will be extremely difficult to replace it. Therefore, it is important to try to keep the old one intact and safe.
3. Treat the nuts with WD40, a product we all know. This will allow you to avoid using excessive force and keep the studs intact. If that doesn't work, the studs are drilled out. The process is complex, lengthy, and requires experience and skill.
4. There is a gasket between the manifold and the pants that needs to be replaced. Also install a new converter o-ring.
5. Now firmly press the exhaust pipe using the nuts. To do this you will need to compress the gasket.
6. Then tighten the bolts of the spring-loaded connection with the neutralizer of your VAZ 2110.

As you noticed, there is nothing complicated in this work. Each element is quite easily dismantled and a new one is installed in its place. Just be careful, act carefully and consistently. Plus, of course, do not forget about the importance of the quality of new parts. Buy only good spare parts that will ensure long-term and efficient service of the exhaust system on your VAZ 2110.

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