Self-replacement of the exhaust and intake manifold gasket on a VAZ 2109

The main reason for replacing the exhaust pipe (pants) on a VAZ 2109 car is burnout. This problem does not happen so often, but it can still appear, especially if the car has already covered 100,000 km. In order to replace the exhaust pipe on your own, you will need the following tool: a 13 deep socket, a 13 socket wrench or an open-end wrench.

First of all, you need to unscrew the four nuts that secure the pants to the exhaust manifold.

Now we remove the pants from the heels so that they move to the side. We unscrew the nuts securing the exhaust pipe to the body bracket, if, of course, there is one.

Now unscrew the nuts that connect the pants and the resonator.

If the clamp is unscrewed, at least on one side you can lift it up and the pipe is disconnected from the resonator, since nothing is holding them in anymore.

Now we find the optimal position and take out the pants through the bottom. There is an O-ring at the junction.

We also pay attention to the gasket at the junction of the exhaust manifold; if it is in poor condition, it should be replaced. The price of the exhaust pipe of a VAZ 2109 car ranges from 300 to 700 rubles (for carburetor models), and 900-1000 rubles (for injection models). Installation is carried out in reverse order.

Self-replacement of the exhaust and intake manifold gasket on a VAZ 2109

Burnout of the gasket under the exhaust manifold is a rather unpleasant and common malfunction on the VAZ 2109.

A product that has become unusable will allow exhaust gases from a running engine to pass under the hood, and the characteristic chattering sound when the engine is under load also does not greatly contribute to a comfortable ride. Replacing the manifold gasket on a VAZ 2109 will help avoid such problems.

The collector gasket is made from a specially compressed asbestos mixture reinforced with steel thread; it can be purchased at any spare parts store. The price of the product, depending on the manufacturer, varies from 50 to 200 rubles. For a VAZ 2109, replacing the intake manifold gasket at a car service center will cost approximately 1,500 rubles and more, not counting the cost of the gasket itself.

How to change the gasket between the manifold and pants

The most common reason why you have to replace pants on a VAZ 2109-2108 car is burnout. This doesn’t happen very often, but once every 100 thousand km this problem can arise. So, to replace the exhaust pipe, we need a minimum of keys, namely:

First of all, unscrew the four nuts securing the pants to the exhaust manifold of the VAZ 2109-2108. The location of this fastener is shown more clearly in the photo below:

Then you need to pull the pants off the heels, just so that they move a little to the side. It is also necessary to unscrew the nuts and bolts securing the exhaust pipe to the body bracket, if such a fastening is present. Personally, this was no longer the case on my old nine, apparently someone removed it so as not to experience unnecessary difficulties in the future.

Now we climb under the car, lifting its front part with a jack or performing this procedure in a pit, and unscrew the nuts on the clamps connecting the pants and the resonator:

After the clamp is unscrewed even on one side, you can lift it up and the exhaust pipe is disconnected from the car's resonator, since nothing else connects them.

And now you can remove the pants through the bottom, turning them from side to side, finding the optimal position for removal. Please note that at the junction between them there is a thick o-ring so that it does not roll away when removed and then you do not have to look for it

Also pay attention to the gasket located at the junction with the exhaust manifold. If it is damaged, it must be replaced with a new one. If it is necessary to replace the exhaust pipe, we buy a new one, the price of which varies from 300 to 700 rubles for carburetor models, and around 900-1000 rubles for injection nines and eights. Installation is carried out in the reverse order of removal.

Preliminary work

Replacing the VAZ 2109 intake manifold gasket with your own hands is not very difficult and does not require specific knowledge or expensive tools - the required set of keys is usually present in the trunk of every car enthusiast.

But before replacing, you should try to tighten the fastening of the intake unit - if the gasket is not burned out, it is the loose fastening that may cause exhaust gases to get under the hood. If tightening the fastening does not help, it means that the gasket is completely burned out and needs to be replaced. Replacing the VAZ 2109 manifold gasket will require preliminary work to dismantle the air filter, remove the carburetor and the manifold itself. All of the above work is carried out exclusively on a cold engine.

Removing the air filter with housing

On the injection engine of a VAZ 2109 car, to remove the air filter, it is enough to unscrew the four self-tapping screws securing the cover of the filter element housing - for this, use a 10mm wrench or a ratchet. There will be a filter element under the cover. If the cover is difficult to lift, you can disconnect the mass air flow sensor from the plug.

On a carbureted engine, there are three latches under the hood that can be easily opened. There is a screw in the middle of the metal cover, which can also be unscrewed by hand, after which the cover is removed. Under the cover there is a filter element that must be carefully removed. Subsequently, during reassembly, the filter element can be replaced - if the time has come or if the filter element is very dirty.

Removing the carburetor

After the air filter has been removed, you can begin to remove the carburetor. To remove the carburetor on a VAZ 2109, you will need the following tools:

two screwdrivers - flat and Phillips;
13 open-end wrench;
head at 8;
ratchet.

Instructions for dismantling the carburetor will be as follows:

The coolant supply hose to the carburetor starter is disconnected from the fitting by unscrewing the fastening clamps. The coolant itself is drained into a previously prepared container.
The exhaust pipe coming from the exhaust manifold and from the cylinder block bracket is disconnected.
Then the throttle cable bracket is disconnected. To do this, first remove one end of the spring from the throttle control rod, and then remove the entire spring, then loosen the nut on the bracket and remove the cable from its engagement.
The EPHH screw sensor is disconnected from the power plug.
Two hoses and a vacuum tube are disconnected from the carburetor heating unit.
The crankcase ventilation hose is removed.
Unscrew the 4 nuts securing the carburetor to the intake manifold.
The carburetor is removed carefully and without jerking - by lifting it from the studs.

The work of removing the carburetor is completed. The presented photos and videos will help you clearly follow the process of removing the carburetor.

Removing the intake manifold

After the work of removing the air filter and dismantling the carburetor is completed, you can begin to remove the intake unit. To do this you will need the following set of tools:

open-end wrench 13;
head 13 - regular and deep;
ratchet and crank;
ratchet with 10mm head.

How to replace the exhaust pipe on VAZ 2108-VAZ 21099 cars?

Removal: 1) First disconnect the resonator from the exhaust pipe of the car. (see “Disconnecting the resonator from the exhaust pipe of the car”, point “3-4”)

2) Then, using a wrench, unscrew the two nuts securing the upper bracket.

3) Next, after unscrewing all the nuts, remove the upper bracket from the exhaust pipe of the car.

4) Next, move to the lower bracket, and then unscrew its two retaining bolts in the same way.

5) And then remove the lower bracket from the downpipe of the car.

Note! After removing the upper and lower brackets, check whether there is an oxygen sensor on the exhaust pipe. If there is one, then unscrew the nut that holds it to the exhaust pipe of the car! (How to unscrew the sensor retaining nut and then remove it from the car pipe, see the article: “Replacing the oxygen sensor”, point “3”)

6) Now bend back the locking plates of all four nuts securing the exhaust pipe.

7) And after bending the plates, unscrew all four nuts securing the pipe, using an extension with a cap head.

And to complete the operation, remove the exhaust pipe from the car, together with the metal gasket.

Note! Replace the burnt or deformed metal gasket with a new one!

Installation: 1) First, install a metal gasket on the mating surface of the new receiving pipe, and then, together with the gasket, install the receiving pipe in its place by tightening all four nuts that secure it.

Replacing the gasket

After the preparatory work is completed - the air filter, carburetor and intake and exhaust manifold are dismantled, you can begin the main work, for which all previous steps were done - directly replacing the gasket itself.

The work order will look like this:

We remove the old gasket - this can be difficult, since, most likely, it is tightly burned to the cylinder head - in this case, you need to use a thin screwdriver or knife. To make the work easier, you can use special aerosol solvents in cans, sold in auto parts stores. It is also necessary to carefully remove carbon deposits from the mating surface of the block - you can use sandpaper for this.
The new product is installed on the exhaust manifold, then all work is done in the reverse order. Replacing the intake manifold gasket on a VAZ 2109 is carried out in a similar way.

Replacement of the exhaust manifold gasket on the VAZ 2109 has been completed. The exhaust pipe of the muffler is secured with brass nuts, preferably new ones. And don't forget to fill in the coolant that was drained when dismantling the carburetor!

Device

In total, this system includes several elements. This:

An exhaust manifold. This is the very first part through which gases pass after combustion. People call the collector a spider for its characteristic shape. This element is supplied to each of the four cylinders of the internal combustion engine. Then all these pipes are combined into two, and then into one single pipe. There are also sports manifolds with a 4-2-1 exhaust pattern. They are installed to increase power. As practice shows, gases move more freely along the path, but the driver still will not feel a significant increase in power.
Reception pipe. It connects to the collector. There is a special probe inside this pipe. This is an oxygen sensor, or lambda probe. If we talk about the VAZ-2109 exhaust system (carburetor), there is no such sensor in the system. But on car injectors, a lambda probe is required. The slightest problems with it may be accompanied by a “Check Engine” lamp on the instrument panel. In fact, the exhaust pipe has the simplest device. There are no sound-reflecting partitions or special fillers. This is an ordinary hollow pipe in which a single sensor can be located.
Catalyst. As in the previous case, this element is present only on injection versions. There is no catalyst on carburetor engines. What is this element needed for? Its main task is to reduce the concentration of harmful substances in exhaust gases. Passing through the catalyst honeycomb, harmful metals are converted into harmless oxides. Thanks to the use of this element, the machine began to comply with the environmental standard Euro-2 and higher. The catalyst is the most expensive element in the VAZ-2109 exhaust system (injector). Therefore, when it malfunctions, many install flame arresters or simply knock out the core and weld the walls, leaving the catalyst empty inside.
Resonator. This element is present on both carburetor and injection versions. A resonator is installed behind the catalyst. What is his task? The resonator serves to absorb the main noise from the exhaust gases. Thanks to this element, the sound of gases becomes less. The resonator is designed simply. This is a metal case with a perforated pipe inside. Additionally, there may be a partition inside.
Main muffler. The resonator can be called an auxiliary muffler, but the main sound energy is absorbed by the last muffler, located under the rear bumper. It enters the resonator and absorbs up to 90 percent of the sound. The structure of this element is somewhat more complicated. The basis here is also taken from perforated tubes, but there are several of them, as well as chambers. Usually these are three or four tubes and two chambers. Passing through this entire labyrinth, the gases lose their energy and exit without unnecessary sound.

Preparation stages

To replace the manifold or its gasket, in any case you will have to dismantle the VK. But before you get to the element you are looking for, you will first need to go through some preparatory steps. Namely, tighten the fasteners, and then remove the air filter and carburetor if the first stage does not help.

Stage of work

Your actions

Often, loose manifold fastenings caused the entry of contaminants, which disrupted the performance of the exhaust system. If the tightening did not give any result, then the gasket is definitely burned out or the collector itself is damaged, which is less likely

Removing the air filter

Removing the carburetor is carried out in the following sequence:

Dismantling the unit

Symptoms of a problem

The main sign indicating possible problems with the gasket of the VAZ 2114 pants is a changed sound (bass) from the exhaust pipe when the engine is running. When an element wears out, you will immediately hear and identify disturbances in the operation of the exhaust system. This will increase the noise level and exhaust sound. However, it is worth understanding that such signs may indicate failure of other components of the exhaust system (for example, the resonator). To accurately determine the possible causes, conduct a thorough diagnosis.

Fault diagnosis

To determine operational problems, you should start the car engine. It is best to carry out the activities together, so that one person sits in the driver’s seat and, at the command of the second, increases the operating speed of the engine. The second person should be located in the inspection hole or under the overpass exactly under the bottom of the car. When the speed increases, you need to carefully inspect the entire exhaust system line, record the source of increased noise and possible leakage of exhaust gases. If you have decided to replace the problem unit, read below for instructions on how to change pants on a VAZ 2114.

Required tool for replacement

Before you begin the process itself, you need to decide on the necessary tools. So, what will you need: a ratchet and sockets for 17, 19; screwdrivers with flat and Phillips tips; a set of keys and the gasket itself.

Now that everything is prepared, you can start working directly. In order for the manifold to be removed without any problems and rusted bolts not to create trouble, everything must be lubricated with WD-40 before performing the operation. It is advisable to do this several times. Before performing the operation, you need to think again, weigh everything and calculate your strength.

Tuning

Those who want to change the exhaust sound to a sportier one can install a straight-through Stinger muffler. The exhaust system of the VAZ-2109 is also modified by installing a “Stinger” brand spider.

As a result, gases will freely leave the combustion chamber. But you need to understand that the exhaust sound will increase several times. Since there are no such labyrinths in a direct-flow muffler, all gases go directly into the atmosphere.

The car will sound sporty, but there is no need to talk about a significant increase in power. A more correct solution is to install such a muffler after upgrading the engine. You can start by installing a 16-valve head, then change the intake system, mount a turbine, and so on. There is no point in installing direct flow on a simple VAZ engine. The standard exhaust system already copes with the exhaust from a simple atmospheric engine. In the case of installing a turbine on a “nine”, such modification is simply necessary.

Causes of malfunctions

The gasket is placed between the exhaust manifold and the cylinder head. The stamped asbestos gasket is resistant to high temperatures, can be compressed (creating the necessary impermeability) and has increased strength. To enhance the latter quality, the exhaust manifold gaskets are additionally reinforced with steel.

IMPORTANT! The main task of the gasket is to prevent exhaust gases from penetrating under the hood, where they can cause ignition of parts/assemblies of the engine compartment.

The gasket is recognized as the most vulnerable point of the exhaust manifold, which operates under extreme loads in both temperature and pressure. It is not surprising that gaskets have to be changed not only on cars with significant mileage, but also on almost new cars.

Gaskets need to be rotated for several reasons:

poor factory quality;
engine overheating due to intensive use;
engine repair (a used gasket loses its properties when dismantled).

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:

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.

Pendants are inexpensive, so you can buy new products without spending any money.

In some cases, the silencer begins to knock when its elements have been installed incorrectly - for example, after replacing the resonator or exhaust pipe. In this case, you will need to double-check that all fasteners and gaskets are installed correctly.

Citizens! It's simple! I had a knock and I was cured in five minutes! The pipes are connected with a clamp, and inside there is a spherical ring. But the connection is not movable. By changing the angle between the pipes at this connection, we change the center of gravity of the entire exhaust structure. You can also change the slope of the pipe arc, thereby moving it away from the gas tank. Experiment! Repair is a scam. They will loosen the clamp, change the degree and charge you 800. Tough!

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Replacing the Exhaust Manifold Gasket VAZ 2109 Injector

Replacing exhaust manifolds and gaskets on a VAZ 2114

An exhaust manifold. This is the unit responsible for driving performance, without which comfort is impossible. It is quiet here, and under the hood there is no smell of exhaust gases that can enter the cabin through the hole in the filter. Exhaust manifold leak repair

VAZ 2114 needs repair. Modern, it is not urgent, there is an opportunity to prepare in advance and choose the right moment.

Exhaust manifold for VAZ 2114

Causes of malfunctions

The main factor causing 90% of defects is the exhaust manifold

on VAZ 2114 cars the highest temperature. Not the highest quality materials where the parts are made. During use, the steel is repeatedly heated and cooled, which leads to the appearance of cracks in the body. This is a common occurrence for VAZ cars older than 7-8 years.

The car service offers argon welding of cracks. But, for a number of reasons, this lesson is useless for a car older than 7 years.

1) Simply removing and installing the exhaust manifold will cost approximately 4.5.5 thousand rubles. Taking into account the work of the welder and other actions, the cost of repairs can be 4-5 thousand rubles. If you are doing the job without help, it will be cheaper to purchase the latest parts.

2.4) Welding, even argon welding, destroys the structure of “tired” metal. The cooked piece sometimes lasts longer than a year, after which new holes appear. The older the car, the faster the problem returns and the manifold must be removed again.

Replacing the cylinder head gasket with video injector.

If the car is more than 8 years old and there are problems with cracks in the manifold, it is better to remove the part and replace it with a new one.

symptoms

exhaust manifold gasket

One of the main leaks in the system is a "sporty" wheezing sound when adjusting the engine speed. This is likely a symptom of various defects in the exhaust system. To check, it is better to take an assistant and go to a garage with an opening different from the overpass. In most cases, they are determined approximately; a problem arises in the muffler, in the cavity, as it is called, the exhaust.

Gasket wear may occur during installation. Open the hood and start the car. a white-gray haze rises differently than an unfamiliar manifold during warm-up, indicating a leak. Owners of VAZ cars usually encounter this problem every 3-4 years. Use of low-quality spare parts and 30 years of advertising. The output will be a custom made metal strip. It will last as long as the collector.

Receiving pipe VAZ 2108 injector 8 valves

This product was chosen by 7 customers

Demo photo provided by the manufacturer. Product may vary.

Set: 1 pipe

Preparation stages

Stage of work

Your actions

Removing the air filter

Removing the carburetor is carried out in the following sequence:

All dismantling work must be carried out only on a cold engine. To make it easy to unscrew all fasteners, you can pre-treat them with WD40, several hours or even a day before the repair begins.

Causes of breakdowns of the VAZ2114 exhaust pipe

Since the unit is attached directly under the bottom of the car, and our Russian roads leave little to be desired, the most common occurrence is driving into a hole (even worse if it is hidden under a puddle) with subsequent damage to both the exhaust pipe itself and the place where it connects to the muffler. The second most common reason is the vulnerability of the gasket itself. The fact is that it is constantly exposed to a strong influence of hot exhaust gases, therefore, in an aggressive environment, the destruction of the product (burnout) accelerates. “Please note that if you have diagnosed wear or damage directly on the pipe itself, you should replace not only the unit that is damaged, but also the sealing gasket. This approach will ensure the best durability and wear resistance of the entire pipe section, and the old gasket will not become a bottleneck in the entire exhaust pipe.”

Source

Also check out

When disassembling the valve mechanism, it is necessary to place a wooden block under the valve plate.

Dry the valve. Remove it from the cylinder head guide bushing.

Using a key “13”, unscrew the 2 nuts securing the inlet pipe.

Remove the gasket and pipe.

Assemble and install the cylinder head in the reverse order.

Recommendations :

Valve stems with engine oil. The same applies to guide bushings.
Before installation, remove dirt, oil, and remnants of the old gasket from the surface of the cylinder block.
The cylinder head gasket should be replaced using two special centering bushings.
Install the mounting screws; the diagram below shows 4 steps on how to tighten them.

The first tightening torque of the screws is 20 N.m (2 kgf.m);
The second - with a moment of 69.4–85.7 N.m (7.1–8.7 kgf.m);
The third - with an extension of 90°;
The fourth is to turn the screws 90°.

How to determine whether a muffler is faulty

It is not difficult to understand that the muffler of a VAZ 2109 car is faulty:

the volume of the engine increases sharply, the engine begins to growl;
In this case, the engine power is reduced by two or even three times;
the cabin smells of exhaust fumes;
if the driver does nothing, the growl of the engine is replaced by a deafening roar, which can sometimes be accompanied by pops similar to pistol shots.

All this suggests that a hole has formed in the muffler housing. If you don't do anything about it, then problems are inevitable:

If the muffler is faulty, carbon dioxide contained in the exhaust gases may end up in the vehicle interior. This gas is colorless and odorless, but causes severe headaches and dizziness. And if exposure to dioxide lasts for a long time, it can lead to the death of the driver;
Driving with a faulty muffler cannot be called comfortable;
Driving with a faulty muffler is expensive: there are rules to limit noisy driving. Violation of these rules may result in fines.

VESKO-TRANS.RU

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How to Remove the Exhaust Manifold of a VAZ 2109 Injector

The exhaust manifold is part of the exhaust gas metering system, which makes the process of removing exhaust gases from the cylinders of the unit into the exhaust pipe.

If the manifold is not working properly, the culprit is both the element itself and its gasket. Replacement of gasket (exhaust manifold). a common occurrence when performing repairs on a VAZ 2109.

To replace the manifold or gasket, the LCD must be removed in any situation. But until you get there, you will first need to complete a few preliminary steps. Specifically, tighten the fasteners, and then remove the air filter and carburetor if the first step does not help.

Your actions

Often, loose manifold fastenings became a prerequisite for contamination, which led to a malfunction of the exhaust system. In this case, lifting did not give any result, then the gasket or the manifold itself was damaged, which is the least possible

Disassembling the air filter

If the engine is a fuel injector, you will need to remove the four filter housing cover mounting screws to remove the air filter. Under the cover is the filter itself. If you have trouble lifting the cover, turn off the MAF sensor and remove the filter.
If there is a carburetor installed under the hood, the filter housing will be held in place by 3 clips. In the center of the iron cover is a screw, often loosened by hand. Removal allows the cover to be lifted easily. Below is a filter that should be removed carefully. Examine its condition carefully. If the filter has been in use for a long time, it is recommended to replace it during assembly.

Replacing the exhaust pipe (pants) of the muffler

deep head 13 with ratchet
Open-end wrench or socket wrench 13

First of all, unscrew the four nuts securing the pants to the exhaust manifold of the VAZ 2109-2108. The location of this fastener is shown more clearly in the photo below:

Now we climb under the car, lifting its front part with a jack or performing this procedure in a pit, and unscrew the nuts on the clamps connecting the pants and the resonator:

After the clamp is unscrewed even on one side, you can lift it up and the exhaust pipe is disconnected from the car's resonator, since nothing else connects them.