VAZ 11182 1.6 MPI 90 hp - Lada Granta (Lada Largus) engine: maximum resource, characteristics and real consumption

AVTOVAZ modified 1.6-liter engines to prevent valve bending, new details

On modern VAZ engines, when the timing belt breaks, the valves “meet” the piston, which causes critical damage and requires expensive repairs. In this regard, AVTOVAZ decided to modernize the line of engines by installing new pistons that will eliminate such damage, writes CARscope.ru, citing its sources.

The plant's supplier, Federal Mogul, has mastered the production of pistons with recesses (holes, counterbores) in the bottom. Motors with such pistons are popularly called “plug-free”, that is, when the timing belt breaks, the valves do not “plug” into the pistons, the bottoms of which have special grooves for this case.

The new piston group is designed for a range of 1.6-liter engines that are installed on the Lada Granta, Kalina, Largus, Vesta, XRAY models:

• VAZ-11186 (8 cells, 87 hp)
• VAZ-21126 (16 cells, 98 hp)
• VAZ-21127 (16 cells, 106 hp)
• VAZ-21129 (16 cells, 106 hp)

For the 1.8-liter engine with the VAZ-21179 index, a modified piston group is not provided.

Update 08/29/18

: The day before the opening of MIAS-2018, AVTOVAZ representatives presented the updated Lada Granta family to the media. Now, on all Granta engines - both 8-valve and 16-valve - they use “stickless” pistons, that is, with grooves where the valve “falls” if the timing belt breaks, and the piston pushed up by inertia will go to it towards. Nikita Gladky (product manager) told Kolesa.Ru about this.

Update 09/04/18

: The website Lada.online clarified the information in the official LADA group on VK. Answer:

To the question “both Vesta and XRAY with 1.6 liter?” They answered like this:

Later, AVTOVAZ customer service reported:

Lada Largus also received such an engine modification, because This car is equipped with similar 1.6-liter engines.

Update 09/06/18

: A slide titled “Engine piston design change” has leaked online. It states that new pistons are used for all engines (only 1.6-liter engines are shown in the photo). The holes in the bottom of the piston for the full stroke of the valves eliminate the possibility of sticking the valves into the piston if the timing kinematics are disrupted (for example, if the belt breaks).

A new coating and a change in the side profile of the piston skirt made it possible to increase the wear resistance of the pistons and, as a result, reduce the tendency of engines to knock and increase fuel consumption.

Do you want to see this modification on 1.8-liter engines? This will happen if the brand “sees a clear request from the consumer,” who “has not yet expressed such wishes.” Simply put, if you want to get a “no problem”, write letters to the factory. This was reported to auto.mail.ru by Sergey Kornienko, head of the Lada brand product portfolio development department.

According to unofficial information, “stickless” pistons began to be installed from engine number 3920500.

Update 09/16/19

: A source directly related to the production of VAZ 21179 engines sent us a photo and told us some more details:

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AVTOVAZ modified 1.6-liter engines to prevent valve bending, new details

On modern VAZ engines, when the timing belt breaks, the valves “meet” the piston, which causes critical damage and requires expensive repairs. In this regard, AVTOVAZ decided to modernize the line of engines by installing new pistons that will eliminate such damage, writes CARscope.ru, citing its sources.

The plant's supplier, Federal Mogul, has mastered the production of pistons with recesses (holes, counterbores) in the bottom. Motors with such pistons are popularly called “plug-free”, that is, when the timing belt breaks, the valves do not “plug” into the pistons, the bottoms of which have special grooves for this case.

The new piston group is designed for a range of 1.6-liter engines that are installed on the Lada Granta, Kalina, Largus, Vesta, XRAY models:

• VAZ-11186 (8 cells, 87 hp)
• VAZ-21126 (16 cells, 98 hp)
• VAZ-21127 (16 cells, 106 hp)
• VAZ-21129 (16 cells, 106 hp)

For the 1.8-liter engine with the VAZ-21179 index, a modified piston group is not provided.

Update 08/29/18

: The day before the opening of MIAS-2018, AVTOVAZ representatives presented the updated Lada Granta family to the media. Now, on all Granta engines - both 8-valve and 16-valve - they use “stickless” pistons, that is, with grooves where the valve “falls” if the timing belt breaks, and the piston pushed up by inertia will go to it towards. Nikita Gladky (product manager) told Kolesa.Ru about this.

Update 09/04/18

: The website Lada.online clarified the information in the official LADA group on VK. Answer:

To the question “both Vesta and XRAY with 1.6 liter?” They answered like this:

Later, AVTOVAZ customer service reported:

Lada Largus also received such an engine modification, because This car is equipped with similar 1.6-liter engines.

Update 09/06/18

: A slide titled “Engine piston design change” has leaked online. It states that new pistons are used for all engines (only 1.6-liter engines are shown in the photo). The holes in the bottom of the piston for the full stroke of the valves eliminate the possibility of sticking the valves into the piston if the timing kinematics are disrupted (for example, if the belt breaks).

Does the Lada Granta engine bend valves? Answer for engines 8 and 16 valves

Some say it is oppression, others say it is not. Who is right? And those and others. I'll explain why.

It all depends on what kind of Grant you have - 1st generation or restyling.

For the 1st generation Grants, two engines were installed: 11183 with 82 hp. and 11186 for 87 hp. Engine 11183 does not bend the valves. On engine 11186 until 2022, when the timing belt broke, the pistons met the valves and bent their legs.

The 2nd generation Grants are equipped with an 8-valve engine 11186 and 16-valve engines 21126 and 21127. I’ll talk about them below. Now let's look at the 8-valve.

This is the same engine as on the first Grant. But it has been modernized. In 2022, they began installing an updated version of the 11186 engine on restyled cars, in which the possibility of pistons meeting valves was structurally excluded. To do this, they began making recesses on the bottom of the pistons, which solved the problem.

16-valve engines are also plugless. Therefore, if you have a 2nd generation Lada Granta, released in 2022 or later, sleep well - all engines in the line are now plug-inless. This means: if the timing belt breaks, the engine will not bend the valves.

✅ Granta 1st generation, engine 11183 (82 hp) - DOES NOT bend

✅ Granta 1st generation, engine 11186 (87 hp) - oppression

✅ Granta 2nd generation (restyling), which has been produced since 2022 to this day - DOES NOT bend on all engines

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Engine

This is a standard 186 modified engine. Lightweight piston group. Previously, the valves on them could bend if the timing belt broke. But in the new Lada Granta on all engines the valves no longer bend - the pistons are plugless. These are not capricious motors, repairable, spare parts are inexpensive. But they do not have hydraulic compensators, so the valve clearances need to be adjusted (every 30,000 km).

A 5-speed manual transmission is installed, which has been used for many years. But the noise from the gearbox is much reduced, especially in 2nd gear. The engine has some advantages over 16 valves. In terms of the cost of a car with different engines, the difference is only 15,000 rubles.

Modifications of 8 and 16 valve Lada Granta engines

A car of this family is equipped with one of five types of power units, namely:

The bend of the valve stem is typical for all of the above modifications of power units, with the exception of the VAZ-11183-50. The reason lies in the absence of a defect in the design of the gas distribution mechanism (GRM).

If the drive belt suddenly breaks, the camshaft continues to rotate, while the crankshaft immediately stops due to the lack of rotational movement.

When the crankshaft stops, the cylinder pistons hit the valve stems (seats). Consequences: deformation of the structure, breakage of the metal base.

Nikolay GANYUSHKIN, head of the engine design bureau

The modernization of the eight-valve engine for front-wheel drive models took two years. The main goals were to reduce fuel consumption and increase dynamic performance by reducing mechanical engine losses, and at the same time reducing harmful vibrations and noise. And of course, increased reliability. Euro 4 standards require that the engine maintain its original emissions parameters twice as long - up to 160 thousand km. And we almost doubled the resource: from 120 thousand to 200 thousand km. The connecting rod and piston group of the VAZ-21116, like the sixteen-valve one, is purchased. In the future, we plan to produce some parts ourselves, and we will continue to purchase some from foreign partners from the Federal Mogul group, who intend to localize the production of components in Russia. We also take into account the interests of the Renault-Nissan alliance. If engine production volumes increase, then it would be reasonable to purchase additional equipment and organize the production of connecting rod and piston group parts in Togliatti.

Reviews

How to prevent valve base from bending

Compliance with technical inspection intervals is rule No. 1 for preventing sudden car breakdowns.

Bent valves in a row

The operation of the timing belt is discussed in detail in the article https://remont-avtovaz.ru/remen-grm-na-lade-granta/. We just remind you that the manufacturer recommends replacing the timing belt every 40,000 km. Violation of the technical inspection period of the car increases the risk of its further use, creating an emergency situation on the road.

Shoals

For this money today the Lada Granta is the only option. The question is different - not a single car leaves the VAZ assembly line without problems. In general, cars are reliable; many can travel 200, or even 300,000 km without major repairs. Consumables and suspension are not taken into account. This can happen to any brand.

Trunk is too big

This thing is not clear. For example, I bought a car and I know that it will be driven by 2 people in front and the same number in back. Why make a huge trunk with a volume of 520 liters, and infringe on the rear passengers? Their feet are resting on the front seat backs!

There are companies that make large vans (firefighting, medical) on the Lada Granta chassis. Why make a huge trunk in a sedan and infringe on passengers?! It can be reduced and made like Vesta’s - 450 liters. This is quite enough.

Rear seats

If you make a little more room for rear passengers, car sales will increase. In general, the rear sofa is comfortable, budget class. Although the backrest can be tilted more. But it’s depressing that the legs rest against the backrest, and long-distance trips will be uncomfortable. If you sit in Granta Sport, then after 1 hour you will not straighten your back. There is a topic for a separate discussion.

Ceiling

It is not particularly intrusive for a person of average height. But headroom is limited for tall passengers.

How the new Lada Granta turned out

The designers took the front part of the Vesta, the Kalina torpedo - a new Granta was developed. Of course, there are small innovations, such as tufted fender liners and lateral seat support. This is where the modernization ended.

The main shame

Try opening and closing the back door - you hear a metallic knock. This is a real shame for AvtoVAZ! Everyone talks about plug-in engines and fashionable innovations, but they can’t make the doors close properly. The locks are stone age; on previous models the doors also closed (VAZ-2107, Niva).

Trunk

Many will argue that this is a budget car, and there is no point in finding fault with it. Open the trunk and look at the lid - solid iron.

Why does the belt break?

The valve bends when the timing drive breaks, so it is important to monitor its condition. On 11186 AvtoVAZ installs Gates belts art.

5670XS with automatic tensioner art. T43228. According to the manufacturer, the service life of the consumable is equal to the engine service life - 200,000 km. In reality, the belt runs about 50,000 km. Experts recommend checking the part during each maintenance, after 15,000 km.

In addition to the quality of the belt, how it is tensioned is also important. In engine model 11186, when there is play or jamming of the pump or tension roller, the belt cuts off the teeth and the pistons bend the valve

It cuts teeth instantly, so it is rarely possible to avoid breakage.

Quality of spare parts

Gates has been cooperating with AvtoVAZ since 2003. The company's products are not cheap. A set of timing belt and tension pulley will cost at least 3,000 rubles. Is it worth saving and buying a cheap Chinese equivalent if there is a danger that if the drive breaks, the engine bends the valve?

However, even if you want to buy an original product, you can run into a fake. Under the name Gates there are counterfeits made from cheap material at a dubious price. You need to buy spare parts from official distributors. Addresses can be found on the company website.

The original timing belt is made of hydrogenated heat-resistant rubber with high resistance to various chemicals. The part has a rounded toothed profile. There are 113 teeth, 17 mm wide. Length - 1.076 m.

Belt wear is determined by the quality of the material, the presence of cracks and delaminations. The surface of the part should be elastic, not too hard. It is not permissible to stretch or shift the belt relative to the required position, otherwise it will fly off and a situation will occur in which the valve bends.

Incorrect belt installation

On a Grant with engine 11186, the valves bend in case of any damage to the timing drive. Since the slightest loosening of the belt causes teeth to be cut off, the drive must be installed strictly according to the diagram, using a special key.

If you look at the drive tension, then on the right side from the camshaft to the crankshaft you get a long arm in a free state. The force is from 15 to 20 Nm. Next, the belt covers the crankshaft sprocket. It rises to the water pump, going around the gear on the left. It goes to the tension roller on the right and returns to the camshaft.

Lada Granta engines 8 valves

This power unit was installed only until December 2014, until it gave way to the 11186 internal combustion engine. This is an injection 8-valve engine with a single camshaft, a timing belt drive and without hydraulic compensators, so the thermal valve clearances here will have to be adjusted yourself. Thanks to special holes in the pistons, if the valve belt breaks, it will never bend.

There are plenty of problems with this engine; first of all, owners are bothered by all sorts of noises, knocks, and vibrations. Unreliable electrics, as well as a capricious thermostat, can throw you many unpleasant surprises. Due to poor fuel, valve burnout sometimes occurs here.

Sedan before restyling 2011 – 2019

Similarly, the Motor VAZ website talks about all the details of the internal combustion engine design

This unit is an improved version of the previous one. There is already a lightweight piston with anti-friction inserts, a timing belt from Gates with a service life of 180 thousand km, an electronic throttle valve, a developed cooling jacket and many other improvements, thanks to which it was possible to fit this rather old engine into the strict EURO 4 econorms. Due to the new pistons without holes in the bottom, if the valve belt breaks, it almost always bends. Update: in mid-2022, the manufacturer equipped the unit with plugless pistons.

Technical characteristics of the VAZ 11186 1.6 8kl engine

In-line 4-cylinder 8-valve engine 11186 (VAZ 21116) was released in 2011. The unit is built on the basis of 11183, but is faster and more economical. This was achieved through a large number of improvements:

• increased the volume of the combustion chamber to 30 cm3;
• reduced the size of the bolts for the cylinder head and cylinder head coupling to M10, which ensures the tightness of the joint with less tightening force;
• strengthened the cylinder head;
• an automatic tensioner was added to the camshaft drive;
• piston cooling nozzles appeared;
• modernized the water pump by installing more reliable bearings and seals;
• the engine was equipped with distributed injection with an automatic throttle valve;
• The thermostat and cooling circuit were modified.

Specifications

Comfort package overview

The car is equipped with an 8-valve engine producing 87 hp, the equipment can be called average. I like the silver color. The cost is 522,500 rubles including paint. If the color is white, the price will drop by 6,000 rubles.

The car has a small set of options, but the most necessary ones are there:

1. Air conditioner.
2. Electric power steering.
3. Electric windows.
4. 2 airbags.
5. Heated seats.

We won’t pay much attention to the configuration; everyone already knows about this.

What cars are equipped with the VAZ 11186 engine?

The Lada Kalina 2 and Granta with manual transmission are equipped with the 11186 engine. The engine is found on Datsun cars built on the Granta and Kalina platforms.

Automobile model

Years of manufacture

Driving impressions

Lateral support in the seats has, of course, improved, but it is not sufficient. The visibility in Lada Grant is not bad, even better than in Vesta. I like the large mirrors, but at speeds over 120 km per hour they start to whistle. What causes the whistling is still unclear. The suspension works fine, not too soft, but in large potholes it breaks. On small uneven surfaces - no problem.

When accelerating over 100 km, the steering wheel is as soft as when driving slowly. This is wrong, at high speeds the steering wheel should fill up and become stiffer for safety. When driving over small bumps, the rear windows and glove compartment rattle. It is useless to apply under warranty - they will not do anything.

What do you like

The engine pulls well from the bottom, and the difference with the 16-valve engine in terms of torque is small. At the start there is no big difference between them. You shouldn't look at horsepower, as it doesn't affect acceleration dynamics. The 8-valve unit will not be enough only when the car is heavily loaded and the air conditioning is on. By the way, when it idles, you can feel a strong detonation in the body.

It’s hard to say what will happen to the engine in 5 years. The suspension breaks, but not often. Its reliability is high; owners rarely repair the chassis. I don’t know why the windows are knocking, they are completely closed.

To buy or not

With this money, people have no other choice. The car has been in 1st place in sales for several years now. AvtoVAZ is constantly working to eliminate problems on its cars, I hope that it will take our statements into account. In the future, cars will be of higher quality and will require fewer repairs. Whether it's worth buying is up to you to decide.

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The most common problems of internal combustion engines 11186

VAZ 11186 borrowed the design from its predecessor. The engine is a cast iron block with 4 cylinders in line and a head with 8 valves. One camshaft. There are no hydraulic compensators, so the valve clearances have to be set manually. The timing belt is driven by a belt.

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The modernization has made improvements to the characteristics of the engine: it has become less capricious, more reliable and economical. However, the engine is not without its drawbacks:

• While the engine is running, knocking noises are heard. Often the problem is solved by adjusting the valve clearances. If this does not help, install new pistons or crankshaft bearings;
• RPM fluctuates at idle. The cause of the malfunction is glitches in the automatic throttle and sensors;
• increased oil consumption. Observed when the main liners or piston rings are worn;
• misfire. The problem is in the ignition module. It is beyond repair and must be replaced.

Granta owners also complain about the unreliability of the Itelm ECU. The electronic unit fails when exposed to moisture. To prevent damage, the ECU can be moved into the interior to avoid getting wet during rains. It is not recommended to cover the module with film, as condensation will occur.

The most critical problem with the 8-valve Lada Granta is that the engine bends the valves. The damage can only be corrected by replacing it with new parts. It remains to find out why the valves bend and how to avoid trouble.

Lada Granta FL received “plug-in” engines

The engines of the updated Lada Granta FL received a new piston, which does not bend the valve if the timing belt breaks.

As you know, one of the disadvantages of modern engines is the bending of valves when the timing belt breaks. It is quite difficult to predict the life of a belt, since it can break not only due to wear, but also if the pump or tension roller is jammed.

When the timing belt breaks, a modern engine usually bends the valves on the pistons. This leads to expensive repairs.

According to the Avtosptavochnaya.com portal, this problem has been solved on the new Lada Granta FL. The plant's supplier, Federal Mogul, has mastered the production of pistons with special recesses. Thanks to this shape, both pistons and valves will remain intact even if the timing belt breaks.

The new piston group will be installed on 1.6-liter AVTOVAZ engines from mid-July 2022:

• 8-valve VAZ-11186 with a power of 87 hp. With.
• 16-valve VAZ-21126 (98 hp)
• 16-valve VAZ-21127 (106 hp)

Let us remind you that these are the engines that the new Granta received:

• 1.6, 87 hp + manual
• 1.6, 98 hp + automatic (Jatco)
• 1.6, 106 hp + mechanics or AMT robot

That is, owners of Lada Granta FL may not be afraid of valve bending in the event of a timing belt break.

Tuning and its influence on “stickiness”

VAZ is an excellent option for tuning a car, which is what many owners use. One of the main types of engine tuning is to increase its power, and this is done in the same way that designers use - by ensuring better filling of the cylinders with the air-fuel mixture. To do this, you just need to install a tuning camshaft instead of the standard one - with a higher cam height.

But increasing power with the help of a tuning shaft also has a negative side - the valves extend from the seats at a greater distance, which means that the likelihood of them colliding with the pistons increases when the timing drive breaks. Therefore, such tuning makes even a “risk-free” engine “plug-in”.

In order not to make the engine “risky”, when tuning it is better not to make adjustments to the timing belt design, but if you decide to upgrade, you should be prepared to constantly monitor the condition of the drive.

Finally, we note that if the engine is “plug-in”, this does not mean that it is very problematic. With timely maintenance of the timing drive, the likelihood of a breakdown such as valve bending is very low and it may not occur throughout the entire period of operation of the vehicle.

Useful tips on the topic

Following the recommendations will make life easier for the driver and the engine of his car:

• find out whether the valves in your car’s engine are bent using a table, a reference book, or with your own hands;
• Carry a spare timing belt with you;
• buy a good quality belt (it’s better to always use the same brand);
• periodically check the belt tension and conduct a visual inspection for cuts, burrs, and detachments of ropes;
• when buying a used car from a stranger, it is recommended to change the timing belt, even if the former owner said that he recently replaced it;

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