This article will talk about the VAZ 2107 muffler. 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 correctly called the receiving pipe. After it follows the resonator, which connects the two extreme parts of the exhaust system. At the very end, the main silencer was installed. With its help, the noise level from the car engine is reduced. How to replace it will be described below.
Highlights
To replace the VAZ 2107 muffler as quickly as possible, you will need screwdrivers, a set of keys and heads, as well as an inspection hole. If there is none, then you can maximize the entire rear of the car so that it is convenient to work under it. The main muffler is located at the rear of the vehicle. Its edge is visible when looking at the car from behind. The replacement of this element must be carried out either in the case of severe deformations, as a result of which the ability to pass exhaust gases greatly deteriorates, or when it is completely burnt, due to which the exhaust gases escape from the muffler without being cleaned and reduce noise. Even if there are breakdowns or burnouts, the noise level rises many times. In this case, it is imperative to replace this element.
Preparation for work
Before starting work, it is necessary to carefully examine the entire exhaust system for damage. Carefully inspect the exhaust pipe, resonator, even the exhaust manifold. If you find any flaws, you need to replace the VAZ 2107 muffler. Do not limit yourself to the main muffler alone. So, first you need to remove the muffler. To do this, install the car on a viewing hole. Using two keys on the "13", it is necessary to loosen the tension of the nuts that secured the clamp. Please note that these threaded connections are constantly exposed to high temperatures. Therefore, they are very difficult to unscrew. It is advisable to treat all threaded connections with penetrating lubricant in advance. Then it is necessary to unscrew the bolt that secured the rubber cushion to the bracket on the VAZ 2107 silencer. A photo of this assembly is given in the article.
Muffler removal
Now you can slightly lifting the main silencer VAZ 2107, remove it from all belts. Note that the clamp should remain on the resonator. To disconnect the muffler from the resonator as simple as possible, use a screwdriver. How to use it in this process will be described below. Installing a new muffler in the reverse order. First you need to dock the two pipes, and then hang the muffler to the body with rubber elements. At the very end, it is necessary to tighten the pillow and bolts on the clamp, which secured the pipes to the VAZ 2107. You can see the photo of the silencer in the article.
Related work
After removing the main silencer, carefully inspect the condition of the suspension belts. Also carefully examine the condition of the mounting cushion. After that, evaluate the condition of the coupling clamp. If excessive force was observed while unscrewing the nuts, a new clamp must be installed. Please note that it is advisable to treat with a special sealant for exhaust systems. It must be applied to the junction of the rear of the muffler and resonator. It should also be borne in mind that immediately after the engine stops, the temperature of the exhaust system can reach 500 degrees. Therefore, it is advisable to first allow the motor to cool, and then carry out all repairs. Of course, you can carry out repairs by wearing thick gloves on your hands. 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" during the repair
And now some tips on how to use tools when the VAZ 2107 silencer changes. In particular, some may ask how a screwdriver can help disconnect the rear of the silencer from the resonator. To do this, you need a flat screwdriver, with it you need to unclench the petals on an additional silencer. Pay attention to the fact that his pipe is sawn in diameter. Do not be afraid to destroy the old rear muffler. He will no longer be useful to you, so you can do anything for him. Scroll the back with this screwdriver, and then without any problems disconnect from the resonator pipe. Please note that you must purchase the highest quality silencer in the store. Pay attention to its appearance. No metallic or other sounds should be heard from the inside. In addition, there should be no mechanical damage on the case, in particular, chips, bumps, dents, or damage to the paintwork. The muffler on the VAZ 2107 is very vulnerable . The injector will not be able to work normally if there is no adjustment for the oxygen content. This will be described below.
Muffler failure
And now it is worth considering all the malfunctions that may be in the exhaust system. First of all, you need to look at the VAZ 2107 silencer. It can be damaged from the outside or corroded. Most often, its elements burn out from the inside. These are the most sad malfunctions that will entail a complete replacement of the unit. It often happens that when the engine is running, blows to the body are heard. Most often, the cause of the malfunction is the destruction or deformation of the silencer suspensions. There may also be a weak connection of all elements of the exhaust system. Breaking the muffler is quite simple. You can run into any obstacle. Even a stone can bounce off the wheel and break through the silencer body. Of course, this is unlikely, but quite possible.
Ambient and silencer
Very often the exhaust pipe of the VAZ 2107 silencer fails. Often the cause of the malfunction is the impact of the external environment. Condensation often accumulates in the muffler. In cities, its body is affected by salts, various chemicals that process roads. Do not forget that any muffler has a certain resource. Of course, if he works beyond the norm, there is nothing “living” in him. External manifestations of muffler breakdowns can be seen immediately. A terrible roar, a knock on the body, rattling, metallic sounds clearly indicate that there is some kind of malfunction.
Block carrier injection "seven"
Very picky this mechanism of the exhaust system. If its operation occurs in ordinary conditions, close to ideal, then the service life is not 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 earlier. Often there is pollution, destruction, as well as the destruction of the central unit of the carrier itself. There are frequent cases when there is corrosion of the case or its damage. Now let's look at those situations in which the destruction of the element occurs. The carrier block can be destroyed if any part of the air-fuel mixture burns directly in the converter. 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 completely burn out. At the same time, the car VAZ 2107 shoots at the muffler, sharp pops are heard.
Damage to 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 with mechanical action. Unfortunately, this can happen when the temperature changes instantly. We drove at a high speed into a puddle during rain, cold water hit the body, the block was destroyed. The carrier block may become contaminated due to the coking of its cells. Usually the reason for this is that engine oil enters the combustion chamber, which is discharged into the exhaust system. And most importantly, in order to prevent pollution, you need to monitor the quality of the fuel that you fill in the tank. Leaded gasoline with additives in which there is metal leads to contamination of honeycombs. Consequently, the collector fails and requires replacement.