Cars of the Lada-Samara 2 family were the continuation of the well-known “nines” and “eights”, which were produced since the days of the USSR. As for the 2115 specifically, it is a continuation of the “ninety-ninth,” the release of which lasted over twenty years. In the car "Samara 2" used a lot of parts from the old "Samara". The exhaust system also moved here. However, its structure and principle of operation does not differ from that of foreign cars. Well, let's look at the VAZ-2115 muffler in more detail and find out how to change it.
Appointment
This element is part of the exhaust system. Its purpose is the release of exhaust gases from the cylinders of the power unit. In addition, vibrations are suppressed inside the muffler. Thus, the exhaust becomes quieter.
Where is
The VAZ-2115 silencer is located under the bottom and is the final element of the exhaust system.
But this is not the only part of this system. Before him there is a muffler resonator. VAZ-2115 is equipped with it without fail. Exhaust gases also pass through it.
Varieties
It is worth noting that on this car there are two types of silencers:
The first is a resonator. The element consists of a metal casing, blind walls and perforated tubes. Also inside the resonator there is thermal insulation. This element is connected directly to the receiving pipe. As for the main one, this muffler on the VAZ-2115 (its price, by the way, is 900 rubles) performs the function of not only the heat sink, but also the damping of sound vibrations. The device of this element assumes the presence of the following details:
- Front perforated pipe.
- Middle and posterior septum.
- Outlet and inlet pipe.
All this is neatly placed in a metal case. Sometimes between the front pipe and the silencer there is a corrugation.
Corrugation
This element is installed on many cars both domestic and foreign production. VAZ-2115 is no exception. Corrugation performs the function of damping vibrations. Since when the fuel-air mixture is combusted, the gases escape with great effort, the exhaust sound would be very loud. The corrugation partially reduces the noisiness of the exhaust gas output. It is made of stainless steel. She is very flexible. Unlike the muffler and resonator, the corrugation does not rust. However, it is subject to mechanical damage. Since it is located under the bottom, it is often caught on asphalt. As a result, it is deformed and passes gases through itself.
Corrugation Repair
Can it be restored? Corrugation, unfortunately, is not being repaired. It is impossible to replace it without special tools. It is welded into the exhaust pipe. The item is inexpensive. For the most part, the cost will be for welding.
Features of the pre-muffler
This element is the middle part of the exhaust system. It performs the function of a “mirror”, reflecting the air flows of gases that come from the combustion chamber. Unlike the main one, the additional VAZ-2115 silencer (resonator) does not have several pipes. Here she is alone, and also perforated. The resonator is a kind of acoustic mirror.
Silencer Symptoms
How to determine that an item has become unusable? Everything is very simple. If the car began to "yell" even at low speeds, then there is a breakdown in the body. Typically, the VAZ-2115 silencer burns out from the inside. In this case, the exhaust sound changes. He becomes loud and irritable. Also note that malfunctions can concern not only this element. If a silencer was replaced (including the VAZ-2115), and the car did not change its tone, it means a breakdown in another place. Check the condition of the corrugation or resonator. They also have the ability to burn.
This is due to high exhaust temperatures . Plus, the lack of additional protection. The exhaust system is not protected from dirt and water that gets on the bottom. Of course, all this greatly accelerates corrosion processes. In winter, it is even worse - salt and road reagents accelerate the rotting process of elements of the exhaust system tens of times. If after winter the exhaust of your car became loud, it is worth to climb the overpass and examine which particular element of the exhaust system has failed. And only after that buy a new one. It is not recommended to buy products from foreign manufacturers. This is a hoax - you get a Chinese fake. It is better to trust the domestic manufacturer and buy Togliatti elements.
How much does a muffler cost for a VAZ-2115?
The average price of this item is 800-1000 rubles. How much does a resonator cost (additional silencer on a VAZ-2115)? Its price is almost the same as on the main one - 1050 rubles. But in addition to the elements of the exhaust system themselves, you need to purchase additional gaskets. The best muffler VAZ-2115 is produced by Tolyatti. Also inspect the condition of the pillows. If necessary, buy a set of new ones.
Muffler replacement
You can install this element, unlike corrugations, with your own hands. To do this, we need a lift, overpass or viewing hole. Next, find the crimp sleeve and unscrew it with a rattle (you can use open-end wrenches). If the bolt starts to roll, hold the other side with an additional key. If the collar is fairly rusted, you can use the grease in the spray can (VD-40). After waiting a couple of minutes, we proceed to dismantle. Having removed a collar, we find out a sealing ring inside.
We do not throw it away, but install it on a new one. Remove the silencer from the rubber pads. If the elements have cracks, we change them. On Lada-Samara cars of the first and second generations, rubber pads are very thin. They do not support the weight of the muffler and often break off.
What next?
Having dismantled the old one, install the new muffler in the reverse order. In order not to suffer with the installation, first we fix the element to the pillows, and then fasten it to the clamp. Do not forget about the o-ring. We put it on between the exhaust pipe of the resonator and the intake pipe of the muffler.
Replacement Issues
Most often, problems arise when dismantling an old element. He simply sticks to the resonator. Sometimes bolts break off. In this case, you can use the grinder. But you need to act carefully so as not to catch the resonator. If the latter has also fallen into disrepair, the problem with dismantling does not go away. In a chain, the resonator likewise sticks to the receiving tube. If they change, you should stock up on the gasket that we talked about earlier. It looks as follows.
This part compresses the exhaust pipe with the manifold and prevents the exhaust gases from leaking out. Thanks to the gasket, they follow strictly along the pipe - to the muffler, and then to the street. There is also a problem when loosening bolts. If they "do not go", they are also cut off by a grinder. In their place they install new ones.
Useful advice
To avoid further problems with the dismantling of the muffler and resonator, it is recommended that the threads of the bolts be treated with grease. This is Litol-24 or ordinary graphite. Lubricant repels water well. Accordingly, you will reduce the risk of corrosion.
Is it possible to ride without corrugation?
Often car owners "cut" it out of the system and ride a straight pipe, installing an elongated resonator. It will not cause harm to the engine. The only thing is that the noise of exhaust emissions will increase slightly.
Conclusion
So, we found out what the muffler VAZ-2115 is. This element takes on all toxic and temperature loads.
Therefore, with frequent use, it becomes a consumable. Its service life is about two years. In addition, it is not worth processing it to protect it from corrosion. All paint and Movil will not withstand such temperatures. And the price of an element is not so high as to think about additional means of protection.