Malfunctions of mufflers on VAZ 2114/2115, methods of repair and replacement

I couldn’t resist, I wanted to show some nice things) a little out of plan, but such chic things cannot be hidden)

I've been wanting a new exhaust system for a long time. The standard has long since exhausted itself, the ringing of metal began and there was a constant knocking on the bottom, in the area of ​​the rear passengers, it seemed to be knocking on the beam. In short, I'm fed up with this standard. I bought all kinds of rubber bands and put iron clamps in their place, the knocking noise disappeared for a while, then it appeared again. It's all because of the suspension, the beam is too close to the pipe. Also, fastenings and so-called rubber donuts are not suitable, they are not provided for by the design))

The only solution was to change the entire system. The new exhaust system had to have the following qualities. Firstly, I don’t like direct flow with PROSport cans, it’s too loud, but there’s NO SENSE! Secondly, there must be normal fastenings so that nothing knocks! Thirdly, it should not stick out from under the bumper, IMHO KOLOKHOZ))

Well, the price should be acceptable for
RUSSIAN
car.

This is what I managed to find and order and have already received) I ordered on the website stinger-shop.ru/ all on 51 pipes

Main muffler for VAZ 2113, VAZ 2114 vehicles without attachment for standard installation

Car model: VAZ 2113, VAZ 2114 Engine capacity: from 1500 cm3 Material: steel 08 PS, used for the manufacture of high-quality exhaust systems, powder coating. Dimensions: pipe diameter 51 mm, barrel diameter 120 mm, barrel length 480 mm, wall thickness 1.5 mm Installation: installation with a standard resonator or Stinger resonator is carried out without welding. Advantages: Installing this direct-flow muffler on a car gives an increase in power. Can be used as a replacement for a failed standard muffler. Additional information: filling - basalt wool and basalt fabric (heat resistance 1200 degrees C) to prevent the wool from blowing out. During installation, standard clamps are used, the tip is technical stainless steel. Warranty: 6 months.

The exhaust system, or, as it is also called, the exhaust gas system of the VAZ 2114, is a communication system through which gases pass from the car’s engine to the outside. This path starts from the intake manifold, then goes into the exhaust pipe, and then through the converter into the mufflers (main and additional). The neutralizer is equipped with reliable protection from various thermal effects in the form of a steel heat-insulating screen.

Connecting elements of the structure

The design of the exhaust system of the VAZ 2114 includes elements that connect its parts into a single and continuous “pipeline”: 1. Sealing gasket - connects the exhaust pipe and the manifold. 2. Movable hinge – used to connect the converter flange and the exhaust pipe. 3. Metallographic ring - installed between the flanges. 4. Cone rings and a clamp with flared ends are the connecting parts between the muffler pipes. 5. Nuts (disposable) on the walls of the bracket and studs of the manifold - secure the exhaust pipe. Let's look at what parts the VAZ 2114 exhaust system consists of in more detail.

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Diagram for 1.6 l engines

The exhaust system of cars equipped with 1.6 liter engines is distinguished by the fact that it does not contain a neutralizer; this element is replaced by a metal “corrugation”. The exhaust system of the 1.6-liter VAZ 2114 is also equipped with a catalytic manifold, which is mounted after the sealing gasket (3). Let's add a few words about the fastening of the entire structure - it is suspended from the bottom of the car on five suspension cushions, and its component parts are connected to each other using gaskets, O-rings and clamps. And some more information for your information - the exhaust system of VAZ 2115, 14, and 13 has a toxicity standard of R 83.

VAZ cars of the 14th and 15th models are still in demand among Russian drivers today. The machines are easy to use, do not require vigilant attention and rarely require repairs. However, they also have a “sore spot” - the mufflers. Therefore, VAZ 2114/2115 owners need to be prepared for the fact that sooner or later they will have to repair or replace the silencer on their car.

Gas exhaust system repair

The above-mentioned mechanical deformations often cause suspension ruptures. These elements are designed to hold detachable tubes under the bottom of the car. But for a burnout to form, it is enough not to notice the development of corrosion on the device. The protective system installed at the factory is not a panacea, and is rather of a formal nature. The accumulation of condensate and exposure to temperature changes can quickly damage the muffler.

Other reasons include problems with ignition and unstable operation of the catalyst. The latter leads to the fact that the remains of unspent fuel enter the device, where they are exposed to high temperatures. As a result, explosive situations arise that lead to burnouts. Malfunctioning resonators can also lead to the need for exhaust system repairs.

What is a car muffler for?

Regardless of the make and year of manufacture of the car, all its systems serve one purpose - to ensure stable operation of the engine and movement. The exhaust system may seem insignificant compared to systems such as the brakes or fuel. However, it is the vehicle's exhaust system that has the most direct impact on engine performance.

The muffler is an integral part of the exhaust system . Its main purpose is to remove exhaust gases outside the car. In addition, the part also serves to reduce noise, since residual fuel can burn in the exhaust system pipes.

The pipe comes out from the rear left side of the car

How to attach

The muffler on the VAZ 2114/2115 is attached to the car body. To ensure that the pipe is securely fixed and does not vibrate during movement, two fastening methods are used:

on rubber suspensions.

Bolts and nuts for fastening the muffler pipes are made of special heat-resistant alloys

The muffler is attached directly to the exhaust manifold with bolted connections, which guarantee complete tightness of the joints. The middle part is also fixed with bolts and nuts. And the resonator and exhaust pipe are suspended on special hooks on the bottom with elastic bands. These suspensions are easy to remove and put on, but at the same time provide rigidity even when driving on uneven roads.

Schematic design of the exhaust system on a VAZ 2114/2115

The gas exhaust system of the VAZ 2114/2115 consists of several parts. Connecting to each other in series, all parts ultimately serve one purpose - reducing noise and removing exhaust emissions outside the body.

1 — bracket for fastening the exhaust pipe; 2 - gasket; 3 — clamping device for the bracket; 4 — additional muffler; 5.7 — “pillows” for muffler suspension; 6 — main muffler; 8 — clamp connecting the muffler pipes; 9 - neutralizing device; 10 — hinge sealing ring; 11 - sensor that monitors the oxygen concentration in emissions; 12 — exhaust pipe for mufflers

Exhaust system design

The functional structure of the exhaust system is designed in such a way as to reliably regulate the removal of chemical waste outside the vehicle.

The gas exhaust structure consists of the following components:

1. Exhaust manifold. Designed to unify gas cylinders into a single system. Its mounting must be sufficiently rigid to cope with dynamic loads.
2. Catalyst. Designed to convert harmful chemicals into gaseous impurities that are safer for human health. The need to reduce gas toxicity is determined by environmental standards for mobile vehicles.
3. Reception pipe. Connects the two previous components of the gas exhaust structure.
4. Resonator. Its immediate function is to reduce the noise level emitted by the exhaust system. This is achieved through special acoustic mirrors. However, this structural element is a rather vulnerable point in the overall mechanism, since it is constantly exposed to high temperatures. Stainless steel can simply burn through. Therefore, it must be periodically welded with electrodes, or the resonator must be replaced.
5. Muffler 2114. Also contributes to noise absorption during engine operation.
6. Corrugation. An elastic hose is necessary to suppress mechanical vibrations produced by the engine. Over time, the corrugation structure stretches, forcing the owner to replace it.

How to replace a muffler on a VAZ 2114/2115

If you start having any problems with the muffler, it is better not to put it off for a long time. The life and health of the driver and passengers depends on how correctly the “glushak” works. In general, the replacement process itself begins with the selection of a new exhaust system kit. It is best not to save money, but to purchase an original factory one. This will delay the need for repeated replacement indefinitely.

In addition, it is recommended to change the fastening bolts during each replacement. It is necessary to choose products made from heat-resistant materials, since otherwise the bolts will quickly stick to the bottom and will be impossible to unscrew.

Algorithm

We must drive the car onto a viewing hole or a stationary overpass; We turn off the engine, squeeze the handbrake, wedge the wheels with boots or put it in first gear, you can choose any option; Let the exhaust system cool down a little, as it heats up under the influence of exhaust gases. You can easily burn your fingers. We always carry out all work wearing gloves. After making sure that the pipes have cooled down, using capes we unscrew the connecting clamps between the muffler and the resonator, otherwise known as the secondary muffler. From the rubber clamp-holder, remove the hook with which it secures the muffler to the bottom of the car; There will be an O-ring between the connections, be careful not to damage or lose it. Carry out visual diagnostics and replace with a new one if necessary. As a rule, the negative impact affects a short service life; Having removed the muffler, we put it aside so that it does not interfere with the process. We pre-lubricate the new ring with heat-resistant sealant, in this way we extend the service life; Install the system components in reverse order. After installation, be sure to start the engine and test the system

Pay attention to ensure that there are no gas leaks, otherwise your work will be down the drain. If everything is fine, you can continue on your way. If not, eliminate the shortcomings.

Schematically the exhaust system looks like this:

A flow of gases emerges from the combustion chamber through the exhaust manifold, exhaust pipe, neutralizer, resonator, and the muffler itself. A weak point or “sore” is also
the burnout of the gasket
between the cylinder head and the exhaust manifold. Despite the tight pressure around the perimeter with the help of four stud bolts. The asbestos gasket still burns out, and the engine emits an unpleasant and loud sound. Modern cars, including the VAZ 2115, use a neutralizer to significantly reduce emissions into the atmosphere, these are oxides of nitrogen, carbon, and hydrocarbons. Structurally, it consists of two parts with catalysts made of platinum and palladium. Passing through these plates, gases react, resulting in a low-toxic oxide, the harmfulness of which to the environment is minimal. According to experts, purification is about 85-95%.

Monitoring the performance of the neutralizer

carries out an oxygen sensor that scans the content of lead oxide in the gas environment. Cars equipped with such a device are strictly prohibited from using leaded fuel. Faulty ignition or incorrect adjustment can cause premature failure of the converter. Unburnt gasoline coats the ceramic plates, which makes it difficult for gases to flow out and clogs the system. The first sign may be a sudden loss of engine power. Accordingly, repair or maintenance work is just around the corner. With this discussion of the topic, the exhaust system on the VAZ 2115 is finished. Let's hope that our tips and recommendations will help many drivers gain experience and help them quickly find the source of the breakdown.

How to repair a “glushak” with your own hands

The muffler on the “fourteenth” and “fifteenth” is considered one of the most vulnerable points of the car. The fact is that due to exposure to high temperatures, the metal quickly burns out, that is, the tightness of the system is broken. Therefore, the part must be changed as soon as there is a suspicion that it is not working.

Reasons for failure

Most often, mufflers “burn out” - that is, due to hot exhaust, the metal inside the housing begins to thin out, which ultimately leads to the appearance of holes. However, this is not the only reason why the silencer may fail:

using a homemade device - handicraft products do not differ in quality and long service life;

mechanical shocks from uneven roads - dents and deformations of the pipe also lead to loss of tightness;

Rust and corrosion sooner or later affects even the highest quality original mufflers.

In general, all of the above factors influence service life to some extent. The car owner can easily identify all of the above faults - just drive the VAZ into the inspection hole and visually examine the muffler. In addition, when deformations, burnouts and corrosion reach their “peak”, the part will begin to make characteristic sounds when moving - gurgling, sharp pops, knocking.

Why is the muffler knocking?

This part on the VAZ 2114/2115 can make knocking noises only in two cases:

it hits the body;

When moving, it touches the gas tank housing.

In any case, it is necessary to immediately take measures to eliminate this malfunction. Most often, the problem lies in severe wear of the rubber suspensions. It is enough to change them and the muffler will again return to its normal position under the bottom of the car.

Reasons for part failure

The muffler is affected by several different factors that can lead to failure, these are:

• Atmospheric precipitation, dirt. Precipitation means the occurrence of rain and snow. A mass that periodically falls on a hot pipe causes temperature changes, destroying the strength of the metal. Unfortunately, it will not be possible to protect the muffler in any way; moisture will in any case affect the metal. A smart solution would be to avoid driving through deep puddles and drive slowly on contaminated sections of the road. If the muffler and pipe are dirty, it is necessary to clean it with water (you can use a pressure jet from a hose). After cleaning, it is recommended to start the engine so that any water that has entered the muffler evaporates.
• Condensate. When the unit is idle for a long time, condensation forms in the muffler, causing a corrosive process. This leads to inevitable destruction of the internal parts of the muffler. This happens extremely rarely, but before the trip it is recommended to increase the operating speed by pressing the accelerator several times. The flow of exhaust gases removes moisture from the silencer.
• Chemical influence. As a result of the release of exhaust gas, a lot of toxic chemical particles settle on the walls of the muffler, destroying the metal, and allowing road reagents to get into the muffler.
• Physical influence. Hitting stones and blows from the muffler when driving on roads also lead to a lot of damage.

The chemical and physical effect on the muffler metal is a natural process. It will not be possible to disassemble and clean the muffler, since the container cannot be opened, and only the attention and professionalism of the driver on the road will help protect it from impacts and stones. Diagnosing and repairing minor damage at the initial stage will help avoid serious problems in the future.

The influence of various negative factors can lead to damage to the corrugation or other parts of the muffler

Negative factors affecting the gas outlet

Exhaust gas exhaust system
The gas exhaust system is located directly under the bottom of the car, which provokes a number of negative impacts.

1. Dust, dirt, and water regularly get onto the muffler body and hot pipe, which reduces strength.
2. Exposure to sudden temperature changes has a negative impact on the service life of the system.
3. Influence of external corrosion.
4. The negative impact of internal corrosion occurs due to condensation accumulating when the engine is idling.
5. The internal walls are destroyed due to the aggressive, pulsating influences of gas flows, abrasive and chemical particles that settle and destroy the material.
6. Elementary mechanical damage caused by vibrations and hits on the muffler by stones flying from under the wheels.