The exhaust manifold is a component of the exhaust system that carries out the process of removing exhaust gases from the cylinders of the power unit into the exhaust pipe.
If the collector malfunctions, the culprit may be either the element itself or its gasket. Replacing the exhaust manifold (exhaust manifold) gasket is a common procedure when repairing a VAZ 2109.
Appearance of the unit
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.
Dismantling of collectors
Now comes the turn to remove the intake and exhaust manifolds. Having dismantled them, you can understand whether it is possible to get by with replacing the gasket, or whether the collectors themselves will need to be completely replaced.
The gasket is a consumable item, the purchase of which will literally cost you 50-250 rubles, depending on the manufacturer and region. Services for replacing the gasket at a service station cost more than 1,500 rubles. Add to this the cost of a high-quality gasket and you will get quite a lot of money. Such costs can be avoided if you do everything yourself.
Dismantled unit
Intake manifold
By removing the air filter and carburetor, you will gain access to the intake manifold.
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.
Your lawyer
I didn't find any antifreeze in the cylinder block. :/ I suspect it leaked into the crankcase. I turned the pin with a wire cutter, locked it and turned it silently.
I assembled everything, started it, warmed it up - it doesn’t hold at idle and the timing belt is on fire, I understand. And so, running like an airplane (fly, alone, low) The feeling, after the perforated seal, is that I am deaf!
As it turns out, the main thing is not to lose faith!
I'm afraid there is antifreeze in the crankcase, does anyone know how to check this?
_Lelik_ July 05, 2009
Systemus July 06, 2009 Check the oil on the dipstick.
If it has whitish spots, there is antifreeze in the oil. When cold, there are no inclusions, the oil does not separate, and when starting the engine it runs for 5 minutes.
Small spots appear (like bubbles, possibly antifreeze), I’ll change the oil. O I didn't change the oil. Everything ingenious is simple, the walking speed was due to the disabled air sensor.
Everything became normal. The engine control sensor burned out and turned off.
And happiness came to me. The repairs were carried out according to the Murzilka ZR. What is not included in the gasket replacement description: 1.
When disassembling the suction pipe (pants), it is necessary to disconnect the lambda probe from the terminal. The nuts on the trouser stirrup were stuck: the stirrup had to be cut with a hacksaw, a new one costs 150 rubles.
2. Drain the antifreeze about 5 liters of antifreeze so that it does not cause excruciating pain for the flooded cylinder block.
3. Disconnect/connect the intake manifold
Removing the VAZ 2109 injector manifold. Removing, replacing, installing exhaust manifold gasket
Under the exhaust manifold of the VAZ 2109. For various reasons (uneven tightening of the nuts, aging), a gasket consisting of several layers is installed, it breaks and requires replacement.
The first sign of exhaustion is the appearance of a characteristic noise. Yes, you can drive as long as you don't worry about your ears.
But it is better to replace it in a timely manner, as a fire may occur in the engine compartment. The gasket is made of extruded asbestos reinforced with steel wire.
Recommended reading: Extension of the auction period upon application
The price for such a gasket, depending on the store and manufacturer, varies between 50-200 rubles. The cost of replacement at a car service is at least 1000 rubles.
And this does not take into account the cost of gaskets, nuts and other components that may require replacement. Therefore, doing the repairs yourself will be much more effective, saving a decent amount. Before replacing the manifold gasket, you need to understand how the process itself works.
You don't need special tools or the experience of a good level 80 specialist.
a standard set of tools found in every garage is sufficient. Briefly, the work process can be divided into several stages: removing the air filter; disassembling the air filter housing; removing the carburetor;
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!
Collegium of Advocates
The exhaust manifold on the VAZ 2109-2108 must be removed more often in connection with replacing the gasket, because if it burns out, then at that moment it begins to cut and the exhaust gases will go under the hood, and the sound of the operation will be quite strong. In general, this problem will not lead to anything good.
To remove the exhaust manifold, you must first follow these steps: After this, we will need very few tools, namely: a wrench or a 13-deep socket wrench for a 13-deep ratchet extension So, first you need to unscrew the 4 nuts that secure the exhaust manifold manifold to the pants (suction pipe), which are shown in the photo below: And move the pants a little to the side, pulling them out of the pins.
Then it is necessary to unscrew the remaining three nuts securing the manifold, since the remaining 6 were unscrewed when removing the intake. And now the exhaust manifold of the VAZ 2109-2108 can be easily removed from the studs by pulling it back: if a gasket is attached to the cylinder head, it can be carefully peeled off with a knife blade or a thin screwdriver, and then completely removed from its seat: After it turns out that this is a rather unpleasant picture: you can remove traces of the old gasket on the surface of the cylinder head using a special spray, applying it to the entire area and waiting for at least 15 minutes: Residual traces can be removed with a thin blade, and you can finally return it to perfect condition by treating the entire surface with the finest sandpaper, the so-called zero.
Symptoms that the exhaust manifold gasket has burnt out.
Full list and action plan »
April 24, 2022 Signs of a blown exhaust manifold gasket. Complete List and Action Plan In this article, we will discuss the symptoms of a blown exhaust manifold gasket. For an exhaust device, the gasket is one of the main parts on which the entire correctness and accuracy of the exhaust system will depend.
If the manifold gasket is replaced prematurely, the safe operating conditions of the vehicle are significantly reduced. In general, a manifold is a device designed to remove exhaust gases from a car engine. The second function of the collector is to improve the filling of the working chambers and enhance the airflow of the working space.
All operations of the exhaust device are performed at elevated temperatures and high gas pressures.
This element is mounted directly on the cylinder head (cylinder head), and the other side is in contact with the exhaust pipe or converter. The most important job of an exhaust manifold gasket is to keep exhaust gases from entering the valve space. These gases, in turn, can ignite parts or components of the power unit.
Weak link in the system and signs of its failure Symptoms of a burnt exhaust manifold gasket can be distinguished as follows: exhaust gases begin to flow into the vehicle or emit an odor; the car engine begins to start poorly; Strange noises appear in the engine compartment.
If these ailments are detected, you should begin inspecting the exhaust system.
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
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.
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).
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.
conclusions
Replacing the exhaust manifold gasket on a VAZ-2114 engine is a rather complicated and difficult task, which can become a serious challenge for many novice car enthusiasts. But if you follow the instructions, everything will work out. Well, if not, then the direct route is to a car service center. Particular attention should be paid to the quality of the product so that you do not have to change the part after several thousand kilometers.
Symptoms:
sucks air into the engine cylinders, intake noise is heard from under the hood; exhaust gases burst under the hood.
Possible reason:
the intake manifold (manifold) gaskets are worn out; The exhaust manifold gasket is worn.
Tools:
one set of wrenches, one set of sockets, one set of screwdrivers.
1. Place the car on an inspection hole or overpass.
2. Drain the engine cooling system.
3. Disconnect the exhaust manifold and front exhaust pipe.
4. Remove the air filter housing from the vehicle.
5. Disconnect the pneumatic drive rod from the carburetor, then disconnect the throttle valve drive cross rod from it.
6. Remove the battery. This is optional, but recommended to improve access to other parts and fasteners.
7. Using a 13-inch socket wrench, remove the lower nut securing the air intake.
8. Using a 13-inch socket wrench, unscrew the top nut securing the air intake, then remove it from the vehicle.
9. Remove the top nut holding the starter heat shield in place.
10. Using a 13-inch socket wrench, unscrew the lug lock nut, then remove it.
11. Using a 13-inch socket wrench, remove the nut securing the ground wire, then remove the ground wire from the stud (the timing chain tensioner has been removed for clarity).
12. Using a 10 mm wrench, remove the two nuts securing the coolant inlet hose to the coolant pump, then disconnect the hose. When reinstalling, replace this gasket with a new one.
13. Using a 13-inch socket wrench with an extension, remove the seven nuts that secure the intake manifold to the exhaust manifold. Please note that under the intake and exhaust manifold hinge nuts, washers are installed that are slightly thicker than the others (the attached photo shows the mounting locations for the intake manifold and exhaust manifold).
14. Disconnect the intake manifold from the engine head by removing the first stud from the second stud. Then move the manifold to the side.
15. Remove the exhaust manifold from the cylinder head studs.
A good driver must maintain his car efficiently and in a timely manner, but always be prepared for the unexpected. After all, it is very difficult to check the condition of all the components, parts and seals of the machine, which at any moment can fail and stop performing their functions. Therefore, one of the most unpleasant “surprises” for motorists is damage to the exhaust manifold gasket.
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:
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.
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°.
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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.
Removing and installing the fuel manifold and injectors
The Multiport Fuel Injection (MFI) system is a device controlled by the ECM. Measure the fraction of fuel under pressure in each cylinder.
The ECM provides control pulses to the fuel injector solenoid.
Fuel enters the top of the injector through the valve ball or needle and a recess in the guide plate as it exits the injector.
The guide plate has 6 holes to control the fuel flow, which form a conical stream of fuel towards the intake valve. The atomized fuel evaporates before entering the combustion chamber.
Conclusion Warning: The fuel system is under pressure. To reduce the risk of injury or fire, relieve fuel system pressure before disconnecting fuel lines.
1. Relieve fuel pressure.
2. Disconnect the “-” battery cable.
3. Remove the fuel injector harness connectors.
4. Remove the EGR valve.
5. Disconnect the power cord.
6. Remove the fuel manifold mounting bolts.
Before removing the fuel manifold, spray clean it according to the instructions provided.
