Stiff clutch pedal: causes and repair methods

Drive system design and symptoms of malfunction

The pressure mechanism is controlled by the leftmost pedal. A well-designed lever ensures easy movement of the release disc petals. In this model of machine, commands to move the fork are supplied by a cable. He “walks around” in a matching shirt. It is worth noting that an automatic cable length adjustment system is implemented here.

Symptoms of a problem

On a new car, the important pedal assembly moves easily. Violation of the factory condition requires stopping operation and identifying the reasons. Usually, along with tight movement, related symptoms occur that indicate a malfunction of the assembly module:

• Extraneous squeaks during pedal movement.
• Jerky movement of the pedal.
• The need for frequent adjustment of the idle speed of the lever.
• The machine jerks when connecting the box to the motor.

What to pay attention to

There are certain signs that the clutch on the Lada Grant has failed and action needs to be taken. It is worth paying attention that if the car has just been purchased, the pedal will be pressed quite easily. If this requires great effort, then this is the first evidence that the clutch needs to be adjusted or replaced.

It is also worth paying attention to the appearance of extraneous squeaks at the moment when the driver presses the pedal. In addition, it should not twitch when the car owner does not touch it.

Most often, car enthusiasts are faced with the fact that the pedal travel becomes too tight. It is worth considering in more detail the reasons for this problem.

Causes of a tight clutch pedal on a Lada Granta car and ways to eliminate the problem

Problems with a hard lever arise both on new cars and on models with an impressive mileage. Depending on the age, the nature of the problem can vary - from a banal drive wedge to serious problems with the unit connecting the engine and gearbox.

What's the matter

Often a tight clutch pedal on a Lada Granta occurs for the following reasons:

• Mediocre performance of the diaphragm spring.
• Fork jamming.
• Release bearing jamming.
• Scratches on the surface of the cable in the working braid.
• The cable is distorted in the mounting bracket to the interior pedal assembly.
• Wedging of the driven disk.

On vehicles with a long service life, cracks may appear in the bearing drive fork and on the release support guide. The accumulation of dirt in the assembly also cannot be ruled out. Damage to the cable clamp bracket should also not be discounted.

For your information. All of these problems can result from the manufacturer allowing defective parts to be installed.

How to troubleshoot

There is no point in immediately positioning the unit connecting the box and the engine as faulty. The cost of a new set of spare parts in the form of a basket, driven disk and release bearing is high, and there will be no 100% certainty that there is a problem with this module until a thorough diagnosis of the drive has been carried out.

How to deal with a tight clutch pedal

Most drivers do not want to put up with this state of affairs and try in every possible way to improve the performance of the clutch.

Among the most common recipes for dealing with a tight pedal are the following:

1. Replacement of the basket and all clutch assembly elements with a known quality product. The best option would not even be a new Valeo, but the assembly recommended by the manufacturer. Often, for many car enthusiasts, the situation became a revelation when, after replacing cool branded baskets with conventional Russian options, the clutch pedal turned from extremely tight to an option with a comfortable level of effort;
2. It is considered cheaper and more accessible to pack all rubbing surfaces with lubricant. To gain access to blind lubrication points, there is a diagram indicating drilling locations, where transmission oil is subsequently pumped with a syringe or oiler;
3. Replacing the cable with a stronger model, regularly filling brake fluid or engine oil with a syringe under the casing. If spindle or similar oil still gives a good effect, pouring brake fluid or WD-40 is pointless and useless. They only contribute to the destruction of the outer sheath of the cable.

Verdict

Substandard behavior of the Granta pedal assembly is a malfunction that should be eliminated as soon as possible. The issue may be either in the drive, which here is a cable drive, or directly in the unit connecting the engine and the gearbox.

Most often, the problem lies in an unraveled cable or its limited mobility in the jacket. This problem can be eliminated by replacing the cable and/or lubricating it with oil, silicone or WD-40. The fork shaft often needs lubrication.

Less commonly, the problem is caused by a deformed or cracked fork. Wear on the leaf spring can radically change the amount of force required to release the pedal. A new clutch can also cause it to feel stiff.

This is the automatic clutch adjustment mechanism in action.

• Features of adjusting the clutch release drive of VAZ 2105, 2107 cars

thank you for what you said, I have the same shit

This is the automatic clutch adjustment mechanism in action.

How to correct it so that this noise does not occur?

distance between the clutch release fork and the lever. The distance L should be 27 millimeters;

Clutch cable adjustment

Adjusting the clutch of the Lada Granta begins by pulling the tip of the cable in the direction of its movement, taking into account the fact that the spring will create force. You should fix the cable in this position and start measuring from the front edge of the plastic leash to the clutch fork lever. It should be no more than 2.7 cm. Since there is not much space under the hood, you should prepare a piece of wire of the required length (27 mm) in advance and measure the distance with it.

The leash rotates to adjust the tension. After the clutch cable is released, you need to eliminate the gaps between the driver and the fork lever. Next, the friction clutch pedal is depressed several times - this is how the auto-adjustment mechanism takes its working position - the pedal should not be tight or fall through.

Judging by the reviews of Lada Granta owners, this mechanism is far from ideal and makes various extraneous sounds when you press the pedal - it starts to crunch or click. You can try to get rid of them by increasing or decreasing the distance of 27 mm. You need to select the size individually in each specific case.

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A caring attitude towards the clutch is instilled in driving school. Gently pressed, switched gears, gently released. The clutch is the unit connecting the gearbox and the motor. Adjustment is needed after replacement. As a rule, clutch replacement can be done in a garage. Lada Priora is generally a repairable car. At a service station, work will cost 1500-2000 rubles. The price of a set of original clutch costs approximately 2000 rubles. On foreign cars the price of the unit is more expensive even with replacement and adjustment. With the purchase of your first car, your understanding of the full value of the clutch increases significantly. On the Priora - one of the most popular city cars - many learned to drive (for real, without an instructor!) and perhaps changed the unit in the garage.

The Priora clutch is simple in design, but, nevertheless, it must always be in good working order - the health of the car and traffic safety depend on it. Therefore, you need to know everything about replacing a unit on a Lada Priora - after all, it’s not just a clutch pedal, it’s a whole mechanism. Which is involved in setting the car in motion - the gearbox and the engine are on friendly terms.

As an example, everyone understands that to disengage the clutch the pedal must be depressed. What happens if the machine does not respond to this? Will it bite or stall in the middle of the road? You shouldn’t listen to advice at all, trying to torture the gearbox without a clutch, “catch” the speed. There is only one way out of this situation: learn a good lesson and worry about the “health” of your “friend” in time. Read the article to the end and you will be safe - this unit will definitely not let you down on the road!

Questions discussed in the article

Adjustment instructions

The Lada Priora is equipped with a clutch cable with a ratcheting mechanism. The cable is backlash-free and does not require adjustment, but manufacturers recommend this be done during every maintenance.

Clutch cable

To adjust the cable on the Lada Priora, you need to prepare a screwdriver and a ruler. The procedure then consists of the following steps:

Engine compartment of Lada Priora First, you should disconnect the mass air flow sensor and remove the air filter. Engine compartment without air filter

After this, a cable will be visible, at the end of which there is a plastic clip. Before adjustment, it is necessary to set the cable to its original position: overcoming the resistance of the spring, push the cable clamp forward until it stops in the direction of movement of the car. This clamp should be pulled towards you and the distance between it and the plug should be measured, it should be 27 mm.

We measure the distance using a ruler

The distance is adjusted by turning the tip counterclockwise. In this way, an increase in distance can be achieved. Twist the clamp until the distance is 27 mm. Accuracy is very important here. Now you can release the cable and place it in the fork. After completing the steps, you need to get behind the wheel and press the pedal three times until it stops. Then again you need to measure the distance, it must be exactly 27 mm, otherwise we adjust until the desired distance is achieved. Next, you should insert the tip into the groove of the mechanism fork and release it. Thanks to the spring, the tip driver clamp is installed without any gap. After adjusting the cable, you need to return everything to its place, start the engine and check the operation of the mechanism.

After adjustment, the clicks disappear and the clutch release pedal operates softer.

Clutch pedals

When the clutch pedal travel is large, the clutch is not completely disengaged, so it still comes into contact with the flywheel of the power unit. When the stroke is low, the driven disk does not turn on completely, which leads to slipping and loss of torque.

You should measure your pedal stroke if the following symptoms occur:

The symptoms described indicate that the mechanism requires adjustment. You can diagnose its operation on Priora yourself. To do this, start the engine, slowly release the PS and start moving. If, when the PS is released, the car immediately begins to move, this means that there is no free play. If the car does not budge even with the pedal fully released, then its travel exceeds the norm. The brake pedal should be at the same level as the brake pedal. In this case, its full stroke will be in the range of 125-135 mm. Fluctuations up to 160 mm are possible.

What does the Priora mechanics clutch consist of?

Before changing a part on a Lada Priora (or performing any other operation similar to replacement), you need to know everything about the structure of this mechanism. It consists of several components:

• Gearbox input shaft;
• Clutch release fork;
• Fork axle bushing;
• Pressure disk assembly (basket);
• Driven clutch disc;
• Flywheel;
• Mechanism for automatic adjustment of cable length;
• Clutch release clutch (release bearing);
• Lower end of cable sheath;
• Drive mechanism (bracket attached to the gearbox housing, seal, drive cable, bushings, release bearing guide bushing, cable guide, locking bracket, axle, pedal and lining).

Standard clutch - article number and price

The VAZ 2170 Priora comes from the factory with a clutch manufactured by LUK. Catalog number (article): 21703-1601130-00. You can find it at a price of two thousand rubles, and if you do not need the entire set of the mechanism (not counting the drive mechanism), you can find the parts by catalog numbers:

1. Clutch assembly (release bearing): 21703-1601180-10;
2. Driven disk: 21703-1601130-00;
3. Pressure plate assembly: 21703-1601085-00;
4. Bolt: 21080:1601207-00.

The “native” LUK kit is considered “softer” than its analogues and, moreover, comes with a reinforced basket.

Why is the pedal hard on the new clutch?

If a car owner purchased a new clutch kit for a Lada Granta, then he may encounter such a problem. The fact is that many people prefer to save money and purchase spare parts from Chinese manufacturers. Those, in turn, deliberately increase the stiffness of the leaf spring. Why is this being done? Everything is elementary. Such manipulations are carried out in order to increase the working life of the unit, which itself has worse characteristics compared to factory analogues.

Therefore, when replacing the clutch on a Lada Grant, it is worth purchasing higher quality parts. It is better to buy all elements from the manufacturer.

Mechanics

Mechanically, the clutch operation process is extremely simple. Let's analyze it from the moment the movement begins. After starting the engine, the car is in neutral gear (starting the engine in gear is bad manners). The clutch is depressed all the way - this means that it is turned off, the driven and pressure plates have separated, that is, a moment is created to change gear. The gearshift lever is moved to position 1, and first gear is engaged.

The pedal is smoothly released (the clutch is engaged), at this moment the most important thing happens: the distance between the pressure plate and the driven one is constantly decreasing, and the force transmitted by the engine has already set one disk in motion, which makes the moment of “collision” of the two disks become difficult. If the pedal is released abruptly, they will quickly touch, which means that the disc will pause (imagine walking and tripping over a stone - much the same thing happens with an engine).

The engine may stall, or in the best case, the car will simply “bite.” At such moments, the “petals” on the driven disk suffer greatly - the more “flattened” they become, the closer the time for replacing the “hitch” is. If the discs come into contact smoothly and the driven disc is slowly set in motion, the car starts from a standstill.

Reviews from car owners

If you look at the opinions of car owners about this component of the car, many note that it quite often creates problems. For example, some have to deal with tight pedal movement or the appearance of unpleasant crunching and clicking noises.

However, few people have to buy a complete clutch kit. Often a specific detail is enough. Therefore, most often it is enough to install a new cable or lubricate the jacket. Accordingly, even if this unit fails, repairs will not be as expensive as it might seem.

In general, car owners are satisfied with this car. It is inexpensive and does not require special care. If you do not use it in extreme conditions, then there should be no problems. It also performs well on difficult roads. Many note that modern foreign cars at the same cost have much worse characteristics.

AMT Robot

Priora with a robotic transmission was installed only on restyled versions (2013-2018), and the choice of car enthusiasts was not always in favor of the “robot”. But the robotic automatic transmission was developed based on the design of the new manual transmission, so there is nothing to be afraid of - everything is reliable. The computer or, in this case, the “robot” itself controls the engagement and disengagement of the clutch and changes gears itself (except in cases where the driver takes responsibility for manual gear shifting).

A Priora with a “robot” can also bite when starting and changing gears. The reason for this may be either an electronic error or wear of the “clutch” mechanism - if it’s time to change some part, then no matter how much the “robot” wants to smooth out the next peck, it will not be able to do so.

Why the ECM detects error “P0830”, video explanation

Praise to the author! I am also a terrible car enthusiast, albeit with little experience... I also had right-hand drive ones, but unfortunately, they are not convenient with our traffic. I now have probably the most boring Toyota model. For almost 2 years of owning this car, I had no problems at all, it burned out once a light bulb in the foot, and I changed the brakes and oil according to plan, despite the fact that the car is 8 years old, the mileage is about 150 thousand. It accelerates quickly, drives smoothly, and is maneuverable. spacious trunk and for its size a very comfortable and spacious interior, dad feels completely comfortable in the back seat, and he is a large man. After a night in a windswept parking lot at minus 35, it started up and didn’t even sneeze once. The stove heats perfectly, the air conditioner cools quickly, the consumption is 6-7 liters of 92 in the city. engine 1.5. 106 horses, + with its size it will fit into any hole in the parking lot. In short, the car is just great. )))

Manufacturers and prices of analogues

• Kraft (article W05200G) – price from 3,300 rubles;
• Pilenga with a metal-ceramic disc (article CK-P4005XR) – price from 10,000 rubles (an excellent, but expensive sports kit with a reinforced mechanism with a reinforced release disc);
• Pilenga (article CK-P 4005) – price from 2,800 rubles;
• Sachs (article 3000 951 033) – price from 3,800 rubles;
• Valeo (828 222) – price from 2,300 rubles.

The Valeo kit for Priora is considered very similar to what Luk produces - it is also “soft” in feel.

Symptoms of a problem

The main symptoms of a malfunction are:

• Hum, whistle and other unnecessary sounds when pressing or releasing the pedal;
• “Push” even if the working moment was caught on time.

If there is a suspicion that the clutch is faulty, then diagnostics can be done using traditional methods, without disassembling the engine compartment internals.

Slip check

We fix the car with the handbrake, engage third or fourth gear, slowly (slower than usual!) depress the leftmost pedal and press the gas at operating torque. If everything is fine with the handbrake, then the test will be true. The car has stalled, which means it’s time to change the pressure plate.

Bleeding the clutch

When bleeding the clutch system, it is necessary to control the pedal. When inflated and the outlet fitting is open, it is necessary that it drops to the floor when pressing on it. It is better to perform these manipulations with a partner. When it collapses under the pressure of the assistant’s foot, a characteristic noise of gurgling air bubbles is created. This procedure must be repeated several times.

With a fully functional clutch system, the pedal returns every time it is released, but if it fails again, it means that something is wrong and it is necessary to re-diagnosis and repair.

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