The muffler VAZ-2107. VAZ-2107: replacement of silencers with your own hands, instruction

In this article will be told about the silencer VAZ 2107. In fact, the exhaust system of this car consists of three main parts. If you start from the engine, then first comes the "spider", which is properly called the receiving tube. After that, a resonator follows, which connects the two extreme parts of the exhaust system. At the very end of the installation of the main muffler. With its help, the noise level from the car engine is reduced. About how to carry out his replacement, will be described below.

Basic moments

To replace the VAZ 2107 silencer as quickly as possible, you will need a screwdriver, a set of keys and heads, and an inspection pit. If there is none, then you can maximize the entire rear of the car to make it convenient to work under it. The main muffler is in the rear of the car. Its edge is visible if you look at the car from behind. The replacement of this element must be carried out either in the case of strong deformations, as a result of which the ability to pass exhaust gases deteriorates strongly, or if it is completely burned, which causes the exhaust gases to escape from the silencer without being cleaned and to reduce noise. Even if there are breakdowns or burnout, the noise level rises many times. It is necessary to replace this element.

Preparation for work

Before commencing the work, it is necessary to carefully examine the entire exhaust system for damage. Carefully inspect the intake tube, the resonator, even the exhaust manifold. If you find any shortcomings, you need to replace the VAZ 2107 silencer. Do not limit yourself to just the main muffler. So, first you need to remove the muffler. To do this, you need to install the car on the inspection pit. Using two keys on the "13" it is necessary to loosen the tension of the nuts with which the clamp is fastened. Please note that these threaded connections are constantly exposed to high temperatures. Consequently, it is very difficult to unscrew them. It is advisable to pre-treat all threaded joints with a penetrating lubricant. Then it is necessary to remove the bolt that secures the rubber cushion to the bracket on the VAZ 2107 muffler. The photo of this unit is given in the article.

Dismantle the muffler

Now you can slightly lift the main muffler VAZ 2107, remove it from all the belts. Please note that the yoke must remain on the resonator. In order to remove the muffler from the resonator as easily as possible, it is necessary to use a screwdriver. About how to use it in this process, will be described below. The installation of a new silencer is in the reverse order. First it is necessary to connect the two pipes, then hang the muffler to the body with the help of rubber elements. At the very end, you need to tighten the pillow and the bolts on the yoke that secures the pipes to the VAZ 2107. You can see the photo of the muffler in the article.

Related work

After removing the main muffler, you must carefully inspect the condition of the suspension belts. Also, carefully study the condition of the mounting cushion. After that, assess the condition of the clamp. If excessive force is observed when unscrewing the nuts, a new collar must be installed. Please note that it is desirable to treat with special sealant for exhaust systems. It must be applied to the joint of the rear of the silencer and the resonator. Also it is necessary to take into account that immediately after engine stop the temperature of the exhaust system can reach 500 degrees. Therefore it is desirable to first let the engine cool down, after which to carry out all the repair work. Of course, you can carry out repairs by putting on your hands thick gloves. True, this will not be very convenient, since it is easier to replace the VAZ 2107 muffler with bare hands. Its price is about 900 rubles.

"Tricks" when carrying out repairs

And now some tips on how to use tools when changing the VAZ 2107 silencer. In particular, some may ask how the screwdriver can help in detaching the rear of the muffler from the resonator. To do this, you need a flat screwdriver, with it you need to open the petals on the additional silencer. Pay attention to the fact that his pipe is sawn in diameter. Do not be afraid to destroy the old rear silencer. You will not need it any more, so you can do anything with it. Scroll the rear part of this screwdriver, then without any problems disconnect from the resonator tube. Pay attention to the fact that you need to purchase the highest quality muffler in the store. Pay attention to its appearance. From inside, no metallic or other sounds should be heard. In addition, the body should not have any mechanical damage, in particular, chips, bumps, dents, or destruction of paintwork. The muffler on the VAZ 2107 is very vulnerable . The injector will not be able to work properly if there is no correction for the oxygen content. This will be discussed below.

Muffler malfunctions

And now it is worth considering all the malfunctions that may be in the exhaust system. The first step is to look at the VAZ 2107 silencer. It can be damaged from outside or corroded. Most often burn its elements from the inside. These are the most unfortunate malfunctions, which entail a complete replacement of the unit. Often happens and so that when the engine is running, body shocks are heard. Most often, the cause of the malfunction is the destruction or deformation of the silencer hangers. There may also be a weak connection of all elements of the exhaust system. It's quite easy to break a silencer. You can drive over some obstacle. Even a stone can bounce off the wheel and pierce the muffler body. Of course, this is unlikely, but it is possible.

External environment and muffler

Very often the exhaust pipe of the VAZ 2107 malfunctioning. Often the cause of the malfunction is the influence of the external environment. In the muffler condensation often accumulates. In the cities, its housing is affected by salts, various chemicals, which are processed by roads. Do not forget that any silencer has a certain resource. Of course, if it works above the norm, there is nothing "alive" in it. External manifestations of the malfunction of the muffler can be seen immediately. A roaring roar, a knock on the body, rattling, metallic sounds, clearly indicate that there is some kind of malfunction.

Block-carrier of the injector "seven"

This mechanism of the exhaust system is very fastidious. If its operation takes place in ordinary conditions close to ideal conditions, then the service life is no more than one and a half hundred thousand kilometers. If the operation is not carried out according to the rules, then, most likely, the catalytic converter will fail before. Often there is pollution, destruction, as well as the destruction of the central unit of the carrier itself. There are cases when corrosion of the shell or its damage occurs. And now let's consider those situations in which the destruction of the element occurs. Destroy the carrier unit in the event that any part of the fuel-air mixture burns directly in the neutralizer. This is due to the fact that there is a misfire. Or the mixture of fuel and air is too generalized, and because of this it does not burn completely. At the same time on the car VAZ 2107 shoots at the muffler, sharp claps are audible.

Breakdown of the carrier unit

Often this happens in the event of a breakdown or malfunction of the oxygen sensor. In addition, an attempt to start a car with a "pusher" may result in the destruction of the carrier unit. And also its complete destruction can happen only under mechanical influence. Unfortunately, this can happen with an instantaneous temperature change. We stopped at high speed in a puddle during the rain, cold water hit the hull, the block was destroyed. The carrier can be contaminated due to the coking of its cells. Usually the reason for this is that a combustion engine gets into the combustion chamber, which is thrown into the exhaust system. And most importantly, to prevent contamination, you need to monitor the quality of fuel, which you pour into the tank. Leaded gasoline with additives, in which there is metal, leads to cell contamination. Consequently, the catcolllector fails and requires replacement.