Which engine on the grant does not bend the valves?

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:

• 8th grade: VAZ-11183-50, VAZ-11186;
• 16th grade: VAZ-21126, VAZ-21127, VAZ 21126-77.

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.

Reviews

Conclusion Do the valves bend on the Lada Granta Liftback? Yes.

Cautions and Consequences

Valve bending on a Priora is mainly due to the piston meeting the first parts. If the timing belt breaks, the car owner cannot avoid expensive repairs. In such a situation, auto mechanics recommend:

• regularly check the condition of the belt,
• determine the presence of chips and cracks on the belt,
• check if there are any threads on the belt.

• remove the engine from the car,
• take it apart
• drain and replace oil,
• remove the crankshaft,
• remove the pistons
• remove the connecting rods.

In this case, you will also need to buy a new, lighter piston group. From an official dealer it will cost no more than 2-5 dollars. Some auto mechanics recommend buying a car of another brand, the price of which is practically no different from the cost of the Priora. It could be a KIA RIO or a Chevrolet Aveo. This problem can be solved using an optimized cooling system for the block and cylinder head.

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-2021, the manufacturer equipped the unit with plugless pistons.

The risk is especially great if...

If you don’t look after the car, it will force you to take a closer look at it with large and costly repairs. At AvtoVAZ they advise changing the timing belt more often, monitoring the condition of the rollers, tensioners, etc., i.e. Carry out periodic maintenance. Although the factory gives a 120,000 km guarantee on the belt, testing this is a big risk. It is better to monitor it more often and change it in advance, before you have to spend money on a major engine overhaul.

In the fall of 2015, the Lad family of passenger cars was replenished with a top model - the Vesta car, produced in a sedan body. When asking the question “do the valves bend on the Lada Vesta,” you need to clearly imagine what kind of engine we are talking about: a 1.6-liter Russian or Nissan, or maybe the latest VAZ development with the name “21179”.

Here we consider options related to cars currently being produced or those that will begin to be produced in the near future. An 8-valve engine was also developed for Vesta - it definitely does not bend the valves and will definitely not be installed on top-end sedans in 2016.

Read more about the engines equipped with the Lada Vesta line in the material: !

ICE VAZ-21129, 106 “hp” (valve bending)

Under the hood of the 106-horsepower Lada Vesta

A little history. Motor 21129 is a modified version of another engine, namely 21127. The last of them, when the timing belt broke, successfully bent its valves, although grooves were made on the pistons (Fig. 1). The point is that the depth of the grooves was not sufficient: if certain conditions were met, the valve “met” the piston with all the ensuing consequences.

With the transition to a new generation of internal combustion engines, that is, 21129, the design of the pistons was modified. But the external shape has not changed much, and although the recesses remain, their depth is still insufficient.

In theory, the problem with valve bending is typical for all VAZ engines equipped with 4 valves per cylinder. Each new 16-valve engine “inherits” it. The exception is one rarity - the VAZ-2112 internal combustion engine, the volume of which is 1.6 liters.

There, the recesses are made conscientiously (Fig. 2).

122-horsepower engine “21179” (valve bending)

In terms of its design, the internal combustion engine of the VAZ-21179 is not very different from its predecessors. The working volume was increased to 1774 ml, which was achieved by changing the piston stroke length: it was 75.6 mm, it became 84.0 mm.

Elements of the connecting rod and piston group

The piston itself is now better fitted to the cylinder than in engines 21127 and 21129. The distance from the piston pin to the piston bottom has increased by 1.3 mm - to 26.7 mm.

But deeper grooves in the bottom never appeared. The timing mechanism still drives the belt, and if it breaks, the possibility of bending the valves has not been canceled.

The timing drive on 21179 engines is equipped with not one, but two tension rollers. What was done to make the design less susceptible to timing belt stretching.

It says here: the number of tension rollers is two

One of the automatic tensioners may jam, but then its function will be taken over by the second automatic roller.

Pistons that do not bend valves

Piston kits for some “old” 16-valve engines are produced by third-party companies. These parts are equipped with deep recesses. The point is that the piston does not reach the plates and cannot bend the valves.

Tuning piston for internal combustion engines 21126-21127

ShPG elements of different engines (21127, 21129, 21179) are compatible. But there is no need to install pistons from “old engines” into the Vesta engine:

• In ICE 21129, after such “tuning”, friction losses will increase;
• If pistons from the 26th or 27th engine are installed in the ICE 21179, the working volume will immediately change.

The “29th”, as well as the “79th” Lada Vesta engine bends valves only with “VAZ” pistons. But after installing a “tuning” part, do not expect an increase in power. Also, by using non-standard elements, you can greatly reduce the resource (lose the warranty, get unforeseen consequences).

Nissan HR16DE engine (does not bend, there is a chain)

This engine is planned for installation on bodies: , and coupe! Its name is HR16DE, and its displacement is 1.6 liters. Let's look at what the piston crown looks like.

HR16DE engine disassembled

There are no “deep recesses” here.

Now let's pay attention to how the timing drive mechanism works

Nothing but gears and chains

There is no toothed belt here - it is replaced by a chain. It is difficult to imagine the following two situations:

• The chain could have jumped over the teeth of one or more gears;
• One of the elements was damaged so badly that the presence of damage led to rupture.

Do the valves of a Lada Vesta with a Nissan internal combustion engine bend? The answer “no” would be wrong - a circuit break is not excluded. But in reality it will be almost impossible to face such a situation. Let's look at why.

Lada Granta engines 16 valves

This engine is also equipped with a lightweight piston group manufactured by Federal Mogul and a belt with an automatic tensioner from Gates. It is distinguished by a 16-valve head with a pair of camshafts and hydraulic compensators, due to which its power is significantly higher.

All the problems of its predecessors apply to this unit in full. The engine often suffers from lubricant leaks, tripping, floating speed, sensor glitches and valve burnout. Plus, you can add hydraulic compensators that are very demanding on oil quality.

Hatchback before restyling 2015 – 2019

All technical characteristics of the engine are described on the Motor VAZ portal

The updated engine received an adjustable intake tract with dampers in the receiver channels. Also here, the mass air flow sensor gave way to a combination of absolute pressure and air temperature sensors, thanks to which the frequent problem of floating speed at idle has finally gone away.

Do the valves on the viburnum 1 4 16 valves bend?

Most buyers want to find out in advance whether the valves on Kalina 1 4 16 valves bend? It should be noted that this is a serious problem that occurs not only in domestic, but also in foreign models.

For example, this situation necessarily arises in a 16-valve engine with a volume of up to one and a half liters. This option is almost never installed, but it used to be quite common on the tenth family.

Model 21126 can also be called slightly problematic. If you do not take care of the maintenance of this part of the car in a timely manner, the entire piston system may break. When valves and pistons meet, the 21116 causes a lot of trouble. This engine has a lightweight group. This led to the fact that there was no space left for the recesses in the pistons, which is why the bending occurs.

16 valves per 1.4 liters. Quite an economical device, but it is not without this problem.

Finally, the VAZ 21127 can also be included in the list of “dangerous” engines. The choice of components and spare parts is the most important point for those who still want to avoid expensive repairs. Timely replacement of the seam will also help. When purchasing, you should pay attention to the seam. If it is, then it is better to purchase another model.

Does the valve on a viburnum bend 1 6 8 valves?

Many car lovers are now asking whether the valves on Kalina 1 6 8 bend. Are there models in which nothing unnecessary happens? It’s quite possible to pick up such options if you look closely.

For example, a good choice is 8 valves for 1.6 liters, or one and a half liters. These are versions of earlier power plants, they were mounted on older models. The 1.6-liter model has already appeared on more modern vehicles. The pistons have special deep recesses designed specifically for valves. This is quite enough to avoid strong collisions.

The modification 21124 with a unit of 16 valves and 1.6 liters was successful. At one time, the VAZ 2112 was produced with this configuration. In this regard, the car was powerful and reliable, and therefore was in great demand among buyers.

The best prevention for any car is constant inspection of the belt itself to see if it is worn out. The tensioner roller must also be replaced if necessary. It is this that contributes to increased wear and tear on the entire system. The likelihood of a belt breaking increases many times even if a defective product is encountered.

The problem can be solved by replacing the piston group, but this is not a cheap pleasure. Especially if you work with official dealers. An independent preventive examination will become more affordable.

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 has been installed on 1.6-liter AVTOVAZ engines since mid-July 2021:

• 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.

Does the valve bend?

Having dealt with the body, I started working on the internal combustion engine. Remember, yes, this Grant was brought to me on a “tie” - the teeth of the timing belt broke. Yes, not eight, like many. And not even fourteen. And all thirty-four (!)

Why? Unclear. Since both the tension roller and the pump have no backlash and rotate perfectly.

Well, okay, let’s put thoughts about this (and about the possible bending of the valves) aside and proceed to installing a new timing kit.

Although, why would I once again write a manual (unscrew it there, close it here) - all this is on the Internet, accessible to everyone. Put new parts in place

Placed tags

Filled with fresh fluid (in accordance with the factory recommendations))

Oh yes, I also changed the spark plugs.

Well, with a calm soul I went to start it.

There should have been a video camera here, but even the tube doesn’t want to be friends with me.

In short, no big deal. The engine started, but with wild vibrations, chugging and... stalled. Verification of marks. Yes, everything is good. Vzhi-vzhi-vzhi-vzhi-vzhi... Well, you guessed it.

And now, a little from AvtoVAZ. Or wazssana. Or whatever it is now.

Do valves bend when the timing belt breaks on an eight-valve Lada Granta?

The problem of a broken timing belt and subsequent damage to the valves was familiar to many Lada Kalina owners. The improved Granta, according to many buyers, has lost this problem.

Uhhahaaa

Current Grant owners claim that not all 8-valve engines are problematic. Honestly? I don't know a single Granta owner who would praise her. I know others who praised it BEFORE purchasing it. In particular, the “Standard” package is equipped with a really high-quality (:)) power unit and will not cause serious damage to its future owner. Yes Yes Yes.

But “Norma” can make the driver worry, because a broken timing belt will lead to the need for long-term and expensive repairs. The differences between these engines, which are similar at first glance, lie in different equipment, so you need to pay careful attention to the type of unit when buying a car.

An engine marked 11183 (previously 2111) is quite noisy, but if the timing belt breaks, the valves will remain intact and undamaged.

The features of the 11186 engine (our case:(()) are reduced operating noise, low fuel consumption and increased power. But in addition to the advantages, the modified power unit also received some problem areas: a new connecting rod-piston system. Its main difference is the lighter weight achieved as a result of shortening the pistons.As a result, the reduced space did not allow for practical and safe placement of the mechanisms.

The process of valve damage itself occurs according to the following scheme:

1. The timing belt breaks.

2. The camshaft stops.

3. The crankshaft continues to rotate (the flywheel transmits rotation).

4. The pistons hit the open valves when the timing belt breaks.

Thus, the valves become bent, and in the future they will need to be completely replaced.

We figured it out. Now, about how the plant can get away with it;))

After all, a breakdown does not necessarily affect every owner of a domestic car. Damage occurs in exceptional cases when the motorist does not devote enough time to servicing the car. Therefore, the root cause is insufficiently conscientious operation. It's clear? The fool himself)

Many craftsmen recommend that immediately after purchasing a Granta, you have it checked at a service station, since even small nicks on the shafts can lead to a rupture of the timing belt. Oh how. The car left the factory gates and went straight to the service station for modification. With a file. I'm lying around.

In some cases, changing the belt to a stronger one helps: the factory component may not meet the required load and operating conditions. AHHHH! The tension force must fully comply with the stated recommendations of the manufacturers. Therefore, self-regulation can only worsen the situation.

You should also contact a specialist if primary signs appear that may indicate a subsequent belt rupture. It could be minor noise from the timing drive. It is this that will indicate possible wear or partial wedge of the rollers or pump. Balin, in our case, why did you eat your teeth?!

All these factors are decisive and can lead to the need for expensive repairs, and in extreme cases, to calling a tow truck if the driver was outside the city at the time of the rupture. This is what happened to my client. The owner of the Grant needs to take into account all the considered nuances and solve the slightest problems immediately after they arise.

In short, if you want hemorrhoids, buy an AvtoVAZ and rely only on yourself.

Yes, you are right, I have an extremely negative attitude towards the products of this company.

I went to take off my head...

And someone somewhere...

Engine 21116 (87 hp) - the valves bend!

21116 engine bends valve

This engine is installed on the Lada Granta in the “Norma” configuration. And it also bends the valves, unfortunately.

How to check the condition of the timing belt?

To visually check the timing belt, you must remove the timing cover. This is not difficult to do; with 8 valves there is a lot of space under the hood. Remove the cover and begin a visual inspection of the belt. It should be like new, without cracks or rips, without dirt or deposits, and dry.

If the condition of the belt causes concern, then it must be replaced, for more details, see the article: replacing the timing belt on an 8-valve Granta.

How to check the condition of the pump and tension pulley?

To check the condition of the pump, it is necessary to remove the lower half of the timing cover. Next, release the belt tension by loosening the tension roller. Check the functionality of the pump, spin it and see if there is any play. If there is play, then do not delay and change the pump, as it may jam in the near future.

The tension roller is checked for play in the same way.

You should also be alerted to extraneous noises when the engine is running. A sign of imminent failure of the pump and rollers is the sound of “rustling” of these elements.