Replacing the VAZ 2114 manifold. Photos, instructions on how to replace the manifold on a VAZ 2114.

The collector (resonator, “pants”) is an engine attachment; it is a closed reservoir of complex shape with a common chamber (receiver) and outlet pipes. Depending on the nature of the functions performed in a car, there are two types of manifolds - exhaust and intake.

The main task of the intake manifold is to supply air from the distribution system, mix it with fuel and transform it into an air-fuel mixture of the desired consistency, followed by a uniform supply to the combustion chamber of the cylinders. Therefore, the main task of the exhaust manifold is to collect exhaust gases from the engine cylinders into a single pipe.

The main signs and causes of failure of the VAZ 2114 intake manifold

The main symptom of a failed intake manifold is a sudden loss of car engine power.
at the same time, there is an increase in fuel consumption , with a deterioration in traction and a drop in engine performance.

It is important to determine the cause of the breakdown and eliminate it in time.

Often a problem is indicated by a missing stud in one of the manifold flanges. It simply comes off when the collector goes “screw”, that is, due to temperature changes, for example in winter, or over time (average service life is 7 years), the collector begins to bend along the plane, and the pin simply “spits out”, pulls out .
Due to the fact that the manifold has “leaded,” a crack may form and, as a result, exhaust gases from the engine escape, and the manifold must be replaced. Before changing the gasket, make sure that all the studs are in place. When you remove the manifold, you also need to check the flatness of the exhaust manifold, because often these areas require grinding or replacing the entire part.
Manifold flaps often fail. This happens for several reasons: low-quality material used to make these dampers, too high a temperature, the presence of oil condensate. A sign that oil consistency has entered the intake manifold is its increased consumption.
The control valve for these dampers may also fail.

Gasket for Kalina manifold 8 valves

These are: fuel system, exhaust gas recirculation system. After a run of 80-100 thousand km, the metal housing of the exhaust manifold begins to crack at the seams.

Flange connections are torn away from their seats.

Replacing a catalyst with a spider, as a process, is divided into several stages.

This does not take into account the fact that the catalyst itself needs to be changed due to burnout of internal parts due to systematic contact with a hot flame flow. The average gas temperature reaches 600℃.

So, division into stages: collecting data on the number and location of catalysts in the car; preparation of spare parts in each specific case for modification;

Tips for replacing the intake manifold

Also, do not neglect the procedures for repairing and cleaning the intake manifold. The stability of the VK is very important for the normal functioning of the car. A certain vacuum is formed in the intake manifold, which is the source of drive force for many systems: cruise control, windshield wipers, vacuum brake booster. In the event of a collector malfunction, this threatens the failure of one or more of the above systems.

To avoid the appearance of cracks and distortions, you must use a torque wrench to tighten the nuts on the manifold and follow the tightening order of 20.9-25.8 (2.13-2.63) N_m (kgf_m). As a rule, it is recommended to start tightening the nuts from the center and gradually move towards the periphery, alternately tightening the nut on one side or the other.

When installing the receiver, it is necessary to replace the sealing gasket.

To work on removing and replacing the VAZ 2114 intake manifold on an 8-valve engine, we will need:

keys “for 8”, “for 10”, “for 13”, “for 17”;
“cardan” type nozzle and socket heads “17”, “19”;
magnetic screwdriver;
screwdrivers, pliers;
new intake manifold.

By the way, the price for an intake manifold from a VAZ (article 21110100801420) will be 1,350 rubles.

The cost is indicated for spring 2022 in Moscow and the region.

Loosen the clamp and disconnect the crankcase ventilation hose.

Drain the coolant. Remove the hose from the cylinder head cover pipe.

We remove the air filter housing from the car by disconnecting the mass air flow sensor.

Remove the supply hose to the vacuum fuel pressure regulator.

Unscrew the two nuts securing the fuel pipe bracket to the receiver and remove the bracket.

Disconnect the vacuum booster hose from the receiver.

In order not to confuse the connection of the fuel pipes, we mark one of the fuel lines with a marker.

Using two 17mm wrenches, unscrew the fuel line fittings.

We unscrew the six nuts securing the receiver to the intake manifold and the stud on the receiver, and then remove the receiver itself.

Disconnect the wiring harness connector from the crankshaft position sensor.

Unscrew the two bolts and remove the fuel rail.

We unscrew the seven nuts in front securing the manifold to the thermal shield...

... and one at the back.

Unscrew the two nuts securing the thrust rods, first on the left side...

...then on the right side.

To avoid losing the washers from the manifold studs, remove them using a magnetic screwdriver.

Let's remove the intake manifold and replace it with a new one. We assemble everything in reverse order.

The exhaust system of a VAZ-2114 car with an injection engine is not particularly complex, however, sometimes you have to spend a lot of time, and maybe money (if the work is done at a service station) to bring it to normal condition. Today we will look at the exhaust manifold of the VAZ-2114, with the features of its dismantling and installation.

When is it necessary to replace and remove the exhaust manifold on a VAZ-2114

Huge temperature changes are the main problem faced by the exhaust manifold and the gasket, for which it is removed. The collector itself is made of a special grade of cast iron; it can withstand high temperatures (up to 800-900 degrees) , however, these are critical values, after which the collector may warp or crack.

Exhaust manifold VAZ-2114

Its main task is to collect exhaust gases and distribute them into the exhaust pipe of the muffler.

Replacing or dismantling the VAZ-2114 exhaust manifold is necessary in the following cases:

Mechanical damage to the collector.
Warping and loss of tightness at the junction with the cylinder head.
Burnout of the gasket between the head and the manifold.
The appearance of cracks as a result of engine overheating.
Replacing the collector with a device of a different configuration, adapted to a more severe operating mode.

In the event that we are not going to participate in high-speed races for the prize of the head of the regional traffic police, replacing or dismantling the collector may be necessary in a number of cases.

Tools and materials for dismantling

There are a number of symptoms that will indicate that you need to prepare to remove the exhaust manifold:

increased noise level in the engine compartment , the engine produces a characteristic, loud sound in any operating mode;
breakthrough of exhaust gases into the engine compartment and sometimes into the cabin;
reduction in engine power due to a mismatch between the exhaust gas outlets in the cylinder head and in the manifold.

Many people decide to replace the standard manifold with a “tuning” one, made of stainless steel and having a different configuration, thereby wanting to increase engine power and reduce the resistance that the standard manifold provides to exhaust gases. As a rule, the most common reason for dismantling a unit is gasket burnout .

Exhaust manifold gasket

The manifold gasket on the VAZ-2114 is made of pressed reinforced asbestos and is designed to ensure a tight connection between the block head and the manifold flanges. Asbestos is used to correct the coefficient of thermal expansion of the aluminum alloy from which the head is cast and the cast iron from which the manifold is cast. At high speeds and under prolonged loads, the gasket may burn out. Then its replacement and dismantling of the collector are inevitable.

To dismantle the manifold, you will need a standard set of tools, a set of sockets with extensions, and WD-40 penetrating lubricant or its equivalent. In case of broken studs, a stud extractor, drill, drill bits and a set of taps will be useful. A day or two before dismantling the collector, it is worth moistening all the fasteners several times, this will significantly simplify the removal procedure .

Manifold dismantling procedure - step-by-step instructions

The dismantling process itself is not so complicated; access to some nuts is difficult, so it is advisable to carry out the work on a lift or in an inspection pit. The algorithm of actions for the injection VAZ-2114 in this case looks like this:

Remove the negative terminal from the battery or turn off the mains switch.
Remove the terminal from the battery
Drain the antifreeze from the system.
This point should not be neglected, despite the fact that the factory does not oblige you to empty the cooling system of liquid. Drain the coolant from the system
Disconnect the fuel pipes.
Removing the fuel pipes
We find the throttle position sensor, idle speed sensor and remove the wires from them.
Disabling the throttle position sensor
We remove the crankcase ventilation hoses and the hose from the vacuum brake booster.
Unscrew the pipes
We dismantle the receiver, disconnect the injector wires and remove the fuel rail assembly. We dismantle the receiver. We disconnect the electrical connector of the fuel rail. We dismantle the fuel rail.
We get full access to the collector.
We dismantle the thermally reflective screen. Removing the thermal shield
Unscrew the muffler exhaust pipe from the manifold.
Disconnect the muffler exhaust pipe from the manifold
Unscrew the manifold mounting nuts from the studs in the block head.
Dismantling the exhaust manifold mountings
We dismantle the collector.
Removing the exhaust manifold

Replacement of gaskets and installation of manifold

After dismantling the manifold, it is rarely possible to remove the gasket intact. It changes in any case , but parts of the destroyed gasket will definitely remain on the mating plane on the head side and on the manifold side. They must be carefully removed.

Changing the manifold gasket

To do this, you can use a special spray that softens the gasket residues; you can carefully remove them with a blade. In this case, the plane must not be damaged, otherwise the tightness of the connection will be broken.

Also, when installing new exhaust manifold gaskets, it is not recommended to use sealants . They can be of different quality, and during crimping they can form particles that get into the crankcase, which is extremely undesirable.

Video about replacing the exhaust manifold gasket on a VAZ-2114

silicone sealant

Universal silicone sealant.
Most of these tubes are equipped with a convenient nozzle. By cutting off part of the spout, you can select the desired diameter of the hole so that the sealant fits well into the joints. Universal silicone sealant. Most of these tubes are equipped with a convenient nozzle. By cutting off part of the spout, you can select the desired diameter of the hole so that the sealant fits well into the joints.

Causes of malfunctions

The key factor that causes 90% of exhaust manifold malfunctions on VAZ 2114 cars is high temperature and poor quality materials from which the parts are made. During operation, the steel repeatedly heats up and cools down, which leads to the appearance of cracks in the body. This is a common occurrence for VAZ cars older than 7-8 years.

Auto repair shops offer crack welding services using argon welding. However, for a number of reasons, this activity is useless for cars older than 7 years.

1) Just removing and installing the exhaust manifold will cost about 2.5 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 do the work yourself, buying a new part will cost less.

2) Welding, even argon welding, disrupts the structure of “tired” metal. A boiled part rarely lasts longer than a year, after which new holes appear. The older the car, the faster the problem returns, and the collector has to be removed again.

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

Lada Kalina 2 from ZR park

Lada Kalina 2 from the ZR park
Lada Kalina 2 from the ZR park

Are there any volunteers?

Armed with theory, we will repair the intake system on the editorial Kalina. The composite plastic path of the 1.6 naturally aspirated gasoline engine (106 hp) leaks around the perimeter of the wells for the ignition coils. Apparently, these are the consequences of frequent tests on the Smolensk Ring race track, in which the car and especially its engine were driven to the limit of their capabilities.

Signs of trouble

Exhaust manifold gasket

One of the main signs of a leak in the system is a “sporty” growling sound when the engine speed increases. This may be a symptom of various exhaust system problems. To check, it is better to take an assistant and go to a garage with a pit or to an overpass. Most often, you can determine by eye whether the problem lies in the muffler, resonator or exhaust.

Gasket wear may become apparent during planting. Open the hood and start the car - white or grayish smoke rising from the manifold during warm-up indicates a leak for this reason. VAZ car owners usually encounter this problem once every 3-4 years. When using low-quality spare parts and before. The solution may be to manufacture a custom-made steel gasket. It can last as long as the entire collector.

Service specialists, when attracting clients, like to tell scary stories about the explosion of the exhaust manifold on VAZ 2114 cars due to cracks. In reality this is nothing more than a myth. But the real problems are no less serious, so there is no point in putting off repairs.

A cracked exhaust manifold or worn gasket can cause your engine to run rough.

1) A lambda probe is installed in the exhaust manifold, which affects the operation of the injection system. Strong air suction disrupts the oxygen mass content in the exhaust; the lambda incorrectly adjusts the quality of the mixture, causing tripping, uneven idling, loss of power, and “black” spark plugs.

2) Another function is crankcase ventilation. Impaired air circulation causes disturbances in the operation of the gas distribution mechanism, increased wear of valves, the formation of carbon deposits on the pistons and other “joys”.

If increased noise and unpleasant odors during engine operation are combined with dirty work, the car needs urgent repairs.

Tools and necessary parts

To remove the exhaust manifold on a VAZ 2114 in order to replace the gasket or entire part, you will need the following tool:

open-end and ring wrenches for 8, 10, 13, 17;
wrench with heads 17, 19;
screwdrivers, pliers.

It is also a good idea to have tools such as a Dremel, nut saw or nut pick on hand. As a rule, the fasteners on the exhaust system parts stick tightly.

A few days before your planned repair, begin treating accessible nuts with WD-40 or another penetrating lubricant. Repeat the operation 2-3 times. This will make the task of removing the manifold a little easier .

The question often arises: is it worth using a sealant after removing and replacing the gasket? Experts believe that if you apply sealant to the gasket, it should only be high-quality silicone. A bad sealant can bring a lot of trouble to a VAZ 2114 engine: when it burns out, it turns into “pellets” that are pulled into the crankcase. And this is unnecessary contamination of the piston system.

Gasket replacement process

Design diagram of the intake and exhaust manifolds

Since the gasket is located on the manifold studs, to replace it the unit will have to be completely dismantled. Of course, this operation will take a lot of time and effort.

Before the car enthusiast proceeds directly to the replacement process, it is necessary to collect the tools that will be needed. So, the tools without which replacement is impossible: ratchet and sockets for 17, 19; screwdrivers with flat and Phillips tips; a set of keys and the gasket itself.

The tools are assembled, now you can go directly to performing all kinds of operations. Before removing the manifold, you need to spray the bolts with WD-40, which will remove corrosion and allow you to remove the part without any problems.

Exhaust manifold removal procedure

Before removing the exhaust manifold yourself, think 7 times. Having this work done by a service center is not cheap, but the inaccessibility and difficulty of unscrewing some nuts can be a serious problem.

Unscrew the bolt securing the intake pipe

It is important to drain the coolant before removal, as antifreeze may enter the cylinders during the process. The sequence of actions for cars with an injector is as follows:

Disconnect the battery, release the throttle cable from the throttle valve.
Disconnect the fuel line pipes.
Disconnect the wires from the TPS and idle speed control.
Release the crankcase ventilation, vacuum, and brake booster hoses.
Remove the receiver, remove the injector block wires and remove the injector fuel rail.
Remove the bracket and thermal shield.
After this, you can disconnect the exhaust pipe, exhaust and intake manifolds from the manifold.

After disassembly, all gaskets are replaced with new ones. Please note when purchasing that the exhaust manifold gaskets for 8-valve and 16-valve VAZ 2114 are different. Select the parts carefully and you can avoid wasting time and money.

Content

An element such as the exhaust manifold is a very important part of the exhaust system of a car. It is responsible for the removal of exhaust gases, the absence of exhaust and gasoline odors in the cabin, and also indirectly affects the correct operation of the engine. Today we will tell you how it works, as well as how to correctly replace the VAZ 2114 manifold.

Exhaust manifold VAZ 2114

Content

Actions in emergency situations Daily checks Operating instructions Warnings and technical rules Basic instruments, measuring Engine and its systems Transmission Chassis Steering Brake system Vehicle electrical equipment Body Interior ventilation and heating system Applications Fault codes Electrical diagrams

Sources

https://expertvaz.ru/2110/premer-komplektatsii-tsena.html
https://videoremont-mashin.ru/remont-kpp-vaz-21108/ustanovka-konditsionera-v-vaz-2110-ot-priory-svoimi-rukami/
https://monolith.in.ua/predohraniteli-lada-2110/

Main causes of malfunction

The engine exhaust manifold is a part that operates under high loads.

During the operation of the car, it is affected by such negative factors as:

high temperature transmitted to it from exhaust gases;
exposure to gasoline vapors caused by the fact that the VAZ 2114 intake manifold and exhaust manifold have a common gasket;
exposure to exhaust gases;
exposure to vibration transmitted from the motor.

All this leads to the fact that almost all cars that are more than 7 years old (with the exception of those whose owners drive a couple of times a year) have a badly worn manifold that requires replacement.

Damaged exhaust manifold gasket

It is immediately worth noting that many car repair shops offer services for argon-arc welding of cracks in worn-out collectors. Such a service, as a rule, costs several times more than a new part, and the durability of such repairs in most cases does not exceed one year, after which new cracks appear.

It is for this reason that you should not think about possible repairs - if the collector fails, it needs to be replaced.

Another problem, which, for obvious reasons, occurs even more often, is a burnt-out manifold gasket 2114. With very active use of the car, it can fail almost every year. You can also replace it with your own hands, and the replacement procedure itself is no different from replacing the collector (its sequence will be discussed below).

What does a faulty collector affect?

There are many stories about the rupture (and even explosion) of a cracked manifold while the car is moving.

Of course, none of them are true, but nevertheless, a leaky manifold is a very serious problem that requires an immediate solution, and here’s why: through burnouts and cracks, air can enter the exhaust system, diluting the exhaust gases.

As a result of this, the lambda sensor will incorrectly determine their composition and incorrectly adjust the composition of the fuel-air mixture injected into the engine, which will lead to tripping, a drop in speed and carbon deposits on the spark plugs.

Bent valves due to incorrect valve timing

These same cracks will affect the crankcase ventilation, disrupting it. This will lead to timing problems and increased valve wear. And finally, exhaust gases escaping through the burnouts will enter the engine compartment and, partially, into the interior, causing unpleasant odors and discomfort during trips.

A severely burnt manifold gasket can lead to exactly the same consequences as cracks on the part itself.