Today we’ll talk about the crankcase on Kalina with an 8-valve engine. And to be more precise, about cleaning this system. Crankcase gases straight from the crankcase (hence the name) are sent mixed with air to the intake manifold for re-burning, thus saving a certain percentage of fuel. So, along with the gases, oil particles enter the system and clog it.

It is this oil that needs to be cleaned from the crankcase ventilation system. Over time, plaque forms on the walls of the hoses, which impedes the passage of gases.

In the Kalinovsky engine, in the valve cover, there is a special separator that separates crankcase gases from the oil. It gets clogged the most. So, let's get started. The entire ventilation system consists of 3 pipes. We need to unscrew them.

Then remove the valve cover. There are two bolts on the back side, unscrew them and get to the separator.

The easiest way to clean it from oil and deposits is in a bath of gasoline or solvent.

While the separator is acidifying, you can work on the pipes. In general, if they are heavily soiled, it is advisable to replace them with new ones. In my case, I replaced only one - coming from the valve cover to the air filter pipe. The rest were washed with carburetor cleaning fluid (great stuff, it corrodes absolutely everything). The separator itself can also be washed a second time with this thing.

We wipe everything with a clean cloth and put it back together as it was. Pay attention to the condition of the valve cover gasket. It is considered disposable and it is better to replace it with a new one each time you remove it in order to avoid oil leaks.

Modification of the crankcase ventilation system Kalina 8 valves

This system could be improved a little. One of the 3 pipes supplies crankcase gases directly to the throttle valve assembly next to the IAC. If they contain oil, it will definitely settle there. This is how the IAC becomes clogged. So, to avoid this, you can embed a regular fuel filter right in the middle of this pipe.

It will trap oil particles contained in crankcase gases. After a few hundred kilometers, you will see for yourself. Monitor the condition of this filter and promptly change it to a new one. On average, as practice shows, it needs to be changed every 1000 kilometers.

Video

Tools:

• Open-end wrench 10 mm
• Open-end wrench 13 mm
• Open-end wrench 17 mm
• Medium Phillips screwdriver

Parts and consumables:

• Gasoline/kerosene
• Rags
• Sealant
• Automotive compressor
• Cylinder head cover gasket (if replacement is needed) -2108-1003270-10

Read more: How to open a Porsche Cayenne if the battery is dead

Notes:

The crankcase ventilation system of the VAZ Lada Kalina 1118 tends to accumulate tarry deposits from crankcase gases, which make it difficult to remove these gases into the engine cylinders for combustion. Because of this, the gas pressure inside the engine increases and oil leaks through the seals appear. We recommend cleaning the crankcase ventilation system before each oil change.

1. Remove the decorative plastic engine cover.

2. Loosen the clamp and disconnect the hose of the large branch of the crankcase ventilation system from the air supply pipe.

3. Disconnect the second end of the large crankcase ventilation system hose from the fitting on the cylinder head cover and remove the hose.

4. Similarly, remove the hose of the small branch of the crankcase ventilation system by disconnecting it from the fittings of the throttle assembly and the cylinder head cover.

5. Remove the supply hose of the crankcase ventilation system by disconnecting it from the fittings of the cylinder block and the cylinder head cover.

6. Rinse the hoses with gasoline or kerosene, blow with compressed air and dry. Clean the holes in the fittings and pipes for connecting the hoses.

7. Unscrew the two fastening nuts and remove the cylinder head cover.

8. Unscrew the long 1 and short 2 bolts securing the oil separator from the inside of the cylinder head cover and remove the washers.

9. Remove the oil separator housing.

10. Remove the mesh pack from the cylinder head cover.

11. Thoroughly rinse the screens, oil separator housing and cylinder head cover with kerosene.

12. Turn the meshes in the bag so that they are oriented in the same way, and install the bag in the lid so that on one side it rests against the protrusions in the lid, and on the other side you can see the hole for the bolt that secures the oil separator of the VAZ Lada Kalina 1118.

13. Install the oil separator housing and tighten its mounting bolts.

14. Check the condition of the cylinder head cover gasket and replace if necessary.

15. The hoses of the crankcase ventilation system and the cylinder head cover of the VAZ Lada Kalina 1118 are installed in the reverse order of removal.

The article is missing:

• Photo of the instrument
• Photos of parts and consumables
• High-quality photos of repairs

If, while operating a LADA car, you notice that during load (when the air conditioner is running, the heating is on, etc.) in a traffic jam, the engine begins to operate unstably (troits, pulls poorly, etc.), perhaps the reason lies in the ventilation system crankcase The article proposes to solve the problem by installing a PCV valve from a foreign car.

Purpose of the adsorber purge valve

In the Lada Kalina model, as in principle in any other car equipped with distributed fuel injection, an adsorbing system is necessary to localize the resulting gasoline vapors. They accumulate inside the tank after the engine stops, and after a certain time necessary for the transformation of these vapors into a condensation state, they turn back into liquid fuel. The remaining volume of vapor that failed to return to the tank moves to the adsorber, where it is retained by two valves. The first (gravity type) is necessary to prevent fuel spillage when the LADA Kalina body turns over (in an accident, etc.), and with the help of the 2nd, the pressure indicator inside the tank is monitored.

Replacing the VAZ Classic gearbox breather

Don't try to do this with a nail gun. Selection and replacement of oil for the VAZ 2109 gearbox. I have already tried it. Did not work out.

Do-it-yourself oil change in a VAZ 21099 gearbox

1. Changing the oil in a VAZ 2114 gearbox: how many liters. Remove the rubber cap, then rinse it and use a wire to clean the hole in the breather, then install it back.

2. Place a waste oil container under the drain hole

3. Now unscrew the oil drain plug.

4. Carefully drain the oil. Oil from the breather of the VAZ 2110 gearbox - Community "VAZ:. Wait some time for the used gear oil to completely drain into the container.

5. Screw in the oil drain plug.

6. Before changing the oil in the VAZ 21099 gearbox, remove the oil level dipstick.

7. Take a can of oil or a special oil can and pour clean oil into the hole.

Changing the purge valve on Kalina

The replacement procedure itself is not a complex undertaking. To perform this, the owner will need to acquire a regular Phillips screwdriver and know where the valve is located.

Below we provide an algorithm of actions that allows you to quickly and efficiently complete this procedure.

1. Disconnect the corresponding terminal from the negative terminal of the battery.
2. You will need to disconnect the power connector from the valve itself.
3. For ease of access to the unit, we move the suction pipe of the intake system slightly to the side together with the “Max Air Mass Airflow” sensor. For this purpose, use the indicated screwdriver to loosen the clamp of the pipe and perform the action.
4. Now we proceed to dismantling the unit. To do this, disconnect a pair of fittings located on the sides of the product. One of the fastening elements is fixed with a latch and to dismantle it, you will need to recess the latch, then lift the antennae and finally tighten the fitting to the side.
5. Before installing a new component, we check that the markings on both valves match and make sure that they are identical.
6. Installation and fixation of the product is carried out in the reverse order.

The canister purge valve has been replaced.

Let's sum it up

The work of replacing the valve is simple, however, when the owner of a Lada Kalina is not confident in his capabilities or does not show the desire to carry out repair operations in such a high-risk unit as the fuel supply system, we recommend using the services of a specialized workshop.

EGR valve: what is it

The car's EGR Exhaust Gas Recirculation system is a very vague and rather capricious thing, especially with the very low quality of fuel that is found in our area, quite often. The ambiguity of this system lies in the fact that its purpose is purely environmental. waste recycling system

gases or USR, is designed to reduce the amount of nitrogen oxides in the car exhaust. What is the USR, why is it needed and how its malfunctions are expressed, we will talk about all this for now.

Breather in the gearbox: operating principle and features

So, in order to understand what a breather is in a car, it should be noted that in fact it is a valve that allows you to reduce the pressure in the crankcase of a sealed unit (engine, gearbox, etc.) A breather, breather or breathing valve is a device through which the container communicates with the atmosphere, and even taking into account the temperature difference in the container, it is possible to maintain atmospheric pressure.

On the one hand, such a valve allows you to relieve excess pressure (equalize the pressure during heating and cooling), and on the other hand, it does not allow oil to leak out of the unit or unit. Also, when cooling, dirt, moisture and dust are not drawn into the unit or assembly. For this reason, engine breather or gearbox breather is actively used in various vehicles.

As you know, the gearbox performs the task of converting torque from the engine, after which torque is transmitted to the drive wheels. The box itself is filled with transmission oil, which tends to heat up during operation of the gearbox, expanding in volume. The result is an increase in pressure that needs to be relieved. If this is not done, the pressure in the gearbox will be increased, which will cause oil to leak from the gearbox through the seals, seals and gaskets.

It is not difficult to guess that oil leaks from the gearbox will lead to the lubrication level dropping, the box will begin to work poorly, and will also wear out quickly and actively. First, the driver experiences difficulties and discomfort (gears engage worse), then extraneous noise appears (hum, vibration of the box), then synchronizers, bearings, gears and other gearbox elements fail. In the gearbox, the breather is installed on the gearbox housing cover.

Also in the car design you can find breathers on bridges. The fact is that oil is also filled inside the car axle. In this case, as in the case of gearboxes and internal combustion engines, the internal cavity must have communication with the atmosphere in order to avoid an increase in pressure inside the unit.

Another important function of the box or axle breather, as well as the engine, is protection from dust, dirt, water, etc. This is especially true for car axles, since the bridge is an open element (for example, on an SUV) and can be submerged in water or mud when driving through difficult areas.

What is the EGR valve for?

We should start with the fact that the USR system is installed on most diesel engines and gasoline, naturally aspirated units. The essence of this system is that at certain moments the valve

EGR and a portion of
exhaust gases
.

Schematic representation of the operation of the USR system.

Thus, the amount of oxygen in the fuel mixture is reduced, which in turn reduces its combustion temperature. And at a lower combustion temperature, the amount of nitrogen oxides in car exhaust decreases quite significantly. If the engine is turbocharged, then the range of application of the USR is significantly narrowed, which makes its installation irrational. In such cases, other solutions are used to reduce the amount of harmful components of automobile exhaust.

Exhaust Gas Recirculation does not work at idle speed, it is not used when the engine is cold, and the EGR valve closes when the throttle valve is wide open.

Useful tips

As a general rule, you should check all existing breathers on a particular vehicle (engine breather, transmission breather, axle breather, etc.). The fact is that oil particles can be squeezed out through the breather during its operation, which leads to active contamination.

In practice, breathers need to be dismantled and cleaned of dirt and oil residues. If cleaning does not produce results (in the case when oil “presses” out of the gearbox, motor or axle precisely because of a faulty breather), the device must be completely changed.

Also, before cleaning, you need to know how to remove the breather. On many cars, it is enough to remove the rubber cap on top and then clean the valve. Some other models may not have a rubber breather cap, and the breather is located in the 5th gear cover. In this case, cleaning is also carried out using improvised means.

At the same time, we would like to add that the rear axle crankcase breather deserves special attention (on many cars it is installed in the upper part of the rear axle crankcase, closer to the right side). This valve is subject to active contamination. If the breather becomes dirty or stops working for other reasons, oil leaks from the axle due to increased pressure.

In this case, you should start with cleaning. After cleaning, it is recommended to drive 20-30 km. If the leak continues, and there are no other obvious reasons, the rear axle breather needs to be replaced. If oil drips still appear, you should look for a fault not related to the breather.

USR system management

recirculation system is controlled by the electronic engine control unit. And the command to open or close the EGR valve can be given based on:

• coolant temperature sensor;
• crankshaft sensor;
• throttle position sensor;

Read

In various car models, either all of the listed sensors are used to control the USR valve, or some of them, and in some cases, only the coolant temperature sensor.

What does the EGR valve look like on a Chevrolet Lacetti?

One way or another, the operation of the USR valve is always controlled by automotive electronics. And while this system functions normally, the driver practically does not feel its operation at all. The useful work of the USR system outside of environmental issues is very unnoticeable. This system allows you to save about three percent of fuel on gasoline engines. Also, in some cases, the USR system prevents fuel detonation in the engine. But this phenomenon in itself is rare and extraordinary. As for diesel units, if they have a properly functioning EGR system, they operate more smoothly, softly, and quietly. In addition, in diesel engines, the formation of soot is reduced through the USR. That's all the bonuses that the exhaust gas recirculation system provides the owner.

What is an EGR valve and what is an exhaust gas recirculation system for?

REAL TAXI DRIVER A huge flaw in the design.

EGR (Exhaust Gas Recirculation) System - Evil or Good?

In this video I explained in Russian why the EGR valve is needed

, but to jam it or not, draw your own conclusions.

EGR system malfunctions

Diagnosing problems with the described system is not as simple a task as it might seem at first glance. The trouble is that there are no pronounced symptoms characteristic of EGR problems. The engine seems to be running rough, it seems to be malfunctioning, but it doesn’t seem to be. And only a professional can suspect the exhaust gas recirculation of such unstable engine operation. But before that, various sensors, components and systems of the car are checked. Actually, what problems may arise here:

• deposits of soot and other elements on the parts of the EGR valve, leading to it jamming in any position;
• burnout of the EGR valve;
• clogging of the USR line itself;
• violation of electronic control systems for the USR valve;

If a valve or line is simply clogged, cleaning them, in general, is not difficult, although in some cases such cleaning is simply impossible. Well, if the valve burns out, then you will have to change it, and this, as already mentioned, is by no means cheap.

There are virtually no symptoms specific to problems with the EGR valve. This is, for example, unstable engine operation at idle speed, unmotivated dips in power, lack of pronounced acceleration when the throttle valve is fully opened, and other signs of disturbances in engine operation.

One way or another, do not rush to change the EGR valve or turn it off if there is no obvious damage to the valve and its parts. Perhaps the problem here is not entirely in the USR, because this system is closely interconnected with other components and systems for regulating air supply and exhaust gas removal.

Transmission breather: what is it for and how it works

A car uses a large number of components and assemblies, inside of which there are technical fluids and lubricants. During operation, such liquids heat up, that is, they increase in volume and the pressure inside increases.

Taking into account the fact that the systems and units themselves are sealed, closed (there is no direct communication with the atmosphere), pressure differences occur inside relative to atmospheric pressure. This difference must be equalized to prevent depressurization, leaks and damage.

For this reason, the engine cooling system has a special valve, which on modern cars is located in the cap of the expansion tank. As for the internal combustion engine or gearbox, a similar function is performed by the engine breather and the breather on the gearbox. Next, we will look in detail at what a gearbox breather is, why it is needed, and how this element is designed and works.