It is no secret that the quality of domestic roads leaves much to be better, so good condition and proper adjustment All elements of the automotive suspension - important factor Comfortable movement. Some of the main components of the suspension are springs that provide the necessary height of the body over the road web, and also affect the carrying capacity and handling of the machine. The optimal level of rigidity of these elements is established by conducting testing in different conditions of movement, and the perfect spring force corresponds to the magnitude warning excessive bond roll.
If the springs are chosen correctly, then on any turns, the body roll should be no more than two or three degrees, to which they treat special attention. Too soft springs can significantly affect the driving car. But how to find out the rigidity of the spring installed on your vehicle? This is exactly what will be discussed in this article.
1. How to determine the stiffness of the suspension spring?
To begin with, remember what a car spring is and what it represents. This component part of the suspension design is represented as an elastic element, a softening jacket and shocks that are formed when driving on uneven roads of the road, because at the end of the wheel, the wheel of the machine is removed from the surface and loses controllability. In such cases, the task of the spring - as soon as possible to return to him for the previous position. Considering that after hitting the wheel bounces back, the soft spring is capable of griping harder and absorb more energy than the hard element. Since this energy is consumed slowly, the oscillations cannot quickly fond, fueling all new and new jokes.
Another structural element of the automotive - shock absorber intended to accelerate the process of dispersion damage by transformation into the heat of the pendants and the body into the heat of the jacket of the suspension.
The rigidity of the springs call its ability to resist compression, which is also it the main characteristic. Overhead rigid spring impairs the quality of car control on uneven roads, while at the same time increasing the discomfort of passengers. Too soft, on the contrary, it shouts well, but creates a large roll of the car when turning turns. There are several factors that directly affect the hardness indicator:
1. Diameter of Prut.(than it is more, the more rigidity);
2. External spring diameter (than it is more, the less will the stringency indicator);
3. Number of springs turns (more turns - less rigidity);
4. Spring shape. There are cylindrical, conical, barrel-shaped elements, each of which can have special characteristics. In addition, one spring is capable of combining several forms in itself.
It is possible to determine the rigidity of the springs installed on your car, based on the product code or the labels in the form of stamping or paint designations (for example, the spring length is not less than 230 mm, and if the product is indicated by yellow marking, it means that it has a length of less than 240 mm). Also learn the value of stiffness will help manual press, outdoor scales and measuring ruler (pressure force is measured in kilograms per centimeter).
For this, the wooden bar is placed on the scales with a thickness of no less than 12 mm, the area of \u200b\u200bwhich will be larger than the surface of the spring, and the spring itself is installed on top of it. The top end of the spring is covered with a second bars of a tree and measure the length of the element. Using the press, the spring is compressed to a specific value (for example, 40 mm) and write the indications of the scales, thereby determining the rigidity of the part.
There is another way to determine the specified value. Here, the suspension spring is considered as the body of the initial length, indicating the letter "L" and exposed to stretching or compression. In accordance with the law of the throat for longitudinal deformation, changes in the body "X" are proportional to its initial length "L" and the applied force "F". I.e, x \u003d F * L / Cwhere "C" is a coefficient of proportionality and depends on the radius of turns, the diameter of the wire and the material of the manufacture of the spring. Spring rigidity indicator - k \u003d f / x \u003d c / l or k * l \u003d c ("C" - constant value).
2. How to properly check the pendant springs
Often, attention is paid to the elements of the suspension only when something somewhere stumbled or the car began to maintain themselves inadequate. However, any problem is easier to solve at the initial stage than to suffer with its consequences. In the case of suspension springs, the following signs may indicate their poor "well-being":
1. Frequent "trifles" suspension;
2. Reduction of the smoothness of the vehicle;
3. The appearance of vibration and shaking when moving;
4. Noticeable car skew or its precipitate;
5. A significant difference between the height of the front and rear of the machine;
6. Reduction of road lumen;
7. Pronounced traces of the interaction of spring turns (noticeable when conducting diagnostic procedures on the observation pit or on the lift).
Why does the spring of the previous properties lose? Firstly, makes itself felt natural wear and fatigue of the metal. SecondlyThe damage of springs due to friction, complete compression or contact with stones is not excluded. IN -TheThe springs can cause frequent vehicle overloads and overcoming uneven roads of the road at high speeds, and completes the "black work" of metal corrosion due to increased level humidity and influence of road reagents.
If, when inspected, you notice damage to the turns at least one of the springs, such a detail must be replaced with a new item. It is also useful to check the sedimentation of the springs. For this purpose, the part is compressed to contact turns, after which they use the load in the amount of 295 kgf. The compression of the spring is produced by its axis, and the support surface must correspond to the reference cup of the shock absorber and the body.
In addition, performing diagnostics, pay attention to the state of spring pads: if they are clearly visible traces of wear - it is better to replace such elements at once. With minor defects, you can still not change the spring, but it is mandatory to replace if:
- the item broke (usually it occurs in the highest or lower twist);
Corrosion or other damage to the metal is strongly noticeable;
The height of the car has decreased (measured and compares the distance between the wheel center and the edge of its arches, and on all four wheels);
There is no uniformity of the horizon of the vehicle (the difference in height between the front and rear parts of the machine).
3. Tools for checking the pendant spring
To carry out complete diagnostics of the suspension springs, you will need both conventional tools (wrenches and end keys, screwdrivers, hammer, etc.) and special puller and springs. As for the latter, they will significantly facilitate the task of dismantling, however, many motorists are perfectly coping with and without them. If you are going to check the rigidity of the springs, then the previously mentioned outdoor scales, measuring tape, manual press and wooden bars of suitable size will be unnecessary.
When the back of the machine begins to enjoy hard, it is necessary to replace the suspension springs. "Fatigue" of this detail creates many inconveniences:
- , because of what the silencer and the back hurt the bumps on the roads, cling the asphalt;
- there is friction of rubber in the arches of the rear wheels;
- shock absorbers are stronger than those of other parts of the suspension and the body in the breakdown;
- the car is flown on one side (usually due to the bug of turns);
- machine swings, and often sharply.
The smoothness of the springs depend on the quality of the springs, its softness, also controllability characteristics.
The replacement of this part is necessary when the owners of the car want to carry more gravity of the goods, some increase the speed characteristics of the machine in this way. Usually, the life of the springs is 5-10 years. However, on the Russian off-road, they are quite quickly "tired", reducing the term of its quality functioning up to 3 years.
In addition, the springs are constantly shocking small stones, the surface is damaged, moisture gets there and, of course, corrosion begins. Therefore, it is better to replace them regularly. For example, on VAZ 2107 recommend them to change every 30 thousand kilometers of mileage.
Properties of springs suspension
When torsions are vehicles Replaced on the springs, manageability improved ,. Springs support car clearance, reducing vibrations and blows while driving vehicle.
To ride was comfortable, it is necessary to correctly choose the details. If technical characteristics are unsuitable, then the positive properties of the suspension will be reduced to zero. Therefore, it is important to take into account the following parameters:
- diameter - its increase affects the rigidity;
- the number of turns - with an increase in the rigidity decreases;
- the form.
Often car owners seek to establish more hard details in the suspension. This contributes to an increase in the sensitivity of the steering wheel to the driver control, but the clutch with the road worsens.
Lovers of sports style ride believe that, on the contrary, it is better to put parts with reduced rigidity. However, such a suspension can create problems on parcels.
Let's consider in more detail what springs are better to install on the VAZ.
Compliance with model springs model
When installing springs on the VAZ suspension, it is desirable to monitor their compliance.
- 2101 Install on.
- 21012 Highly made from a larger diameter bar. It is placed on a VAZ with left steering, with a special integration, when the front suspension of increased energy consideration is needed.
- 2102 are installed on the VAZ-2102, 21014 universals. They have increased by 21 mm. ground clearance Under the body. To increase the lifting capacity, it is impossible to be applied, since with them the premature destruction of the body is inevitably.
- 2108 put on all front-wheel drive models, in addition to modifications with a 16-valve engine and "Oka". By the way, the owners of the VAZ-21099 sedans are often deceived, offering to acquire deficient "99 springs". In fact, there are ordinary "eighth", and "99th", in general, does not exist.
- 2110 European put on the rear suspension VAZ 21102-21104, 2112, 2114, on the front and rear suspension 21122 and 21124. European version is created for auto intended for export. The lumen of the road here is done less than 20 mm, the springs are decreased to increase their high speed stability when performing turns. Machinery cargo soil roads It is significantly worse.
- 2111 are put on the rear suspension VAZ 2111 and 2113.
- 2112 put on the front suspension VAZ 21103, 2112, 21113.
- 2121 Apply on all-wheel drive modelsexcept "Oka".
Selection depending on the manufacturer
Often Drivers try to buy original, factory replacement, not wanting to experiment. However, there is decent choice From other manufacturers whose products are sometimes worse than the original.
Sirius
There is a large assortment for different car brands, the parts are also manufactured by any configuration according to the customer's drawings.
Phobos
The quality is satisfactory, but, according to some car enthusiasts, after 2 years begin to see, losing rigidity. In total, this brand is made by springs about 500 species on any machine brands, there are standard, reinforced and low springs. Schedule sets are also offered with an increase in the road lumen.
Technoressor
Hardness over time is losing, but do not delete. As budget option quite good.
Koni.
Very durable, without seating. They have adjustment of rigidity directly on the car, performed by a special lamb under the hood.
Eibach.
High-quality, very durable, practically not "aging" - do not seek, do not lose rigidity. When turning there is no roll. But they stand more expensive than Koni, one and a half times. \\
SS20
The products of the SS20 brand pass on the test stands a mandatory check, after which they are selected in pairs with similar characteristics. Such an inspection provides, according to the manufacturer, 100% product quality. A large range allows you to choose the desired characteristics depending on the style of driving and operating conditions. 3 options are offered:
- hot winding of a standard height with a linear compression characteristic;
- cold winding of a standard height with linear and progressive compression characteristics;
- cold Navivka understated, with progressive compression characteristic.
Kilen.
Alternative original kilen springs are distinguished by maximum quality. The service life of the manufacturers are twice as much as the work of the original products from the VAZ.
ASOMI
Excellent springs made from special alloys, covered to increase the duration of service for epoxy spraying.
- Can I install the details of different classes?
Remember that the springs on the suspension you need to put one class. Suppose you installed on the front suspension Details of the A-class, it means that the class "A" also needs to be put on the back.
If there is no similar class for the rear suspension, then in exceptional cases, the class "B" is placed on the rear suspension.
If springs are installed on the front suspension, it is impossible to put on the rear class "A".
Install the suspension of the same class on the left and right side of one axis.
- What springs are better to put on the VAZ 2107?
Before changing the items, make sure that it really needs. You can check in the following way: in the front of the front of the VAZ 2107, shake the body down. If it raises quickly at home, the replacement of the springs is not needed, they are in good condition. If the body did not rise, continues to swing, then the replacement is necessary. In the same way, you can check the rear suspension of VAZ 2107.
To improve the aerodynamics of VAZ 2107, improve the sensitivity of the steering wheel, it is recommended to put more rigid springs than the original. You can buy intended for VAZ 2104, cut one round. Mandatory on the VAZ 2107 you need to change two at the same time, otherwise the car on the road will lose stability.
- Are there 2107 springs from Niva on the VAZ 2107?
If you wish to make VAZ-2107 sport tuning, the suspension is done with more rigid, it improves the quality of controllability, without reducing the level of comfort.
The rear springs are more rigid than the front. Factory is too soft, and the car quickly loses his handling, the bottom is scratched road covering. Having increasing the stiffness of the suspension, recommended on the VAZ 2107 to put springs from the Niva.
- What springs are better to put on the VAZ 2110?
The VAZ 2110 is often broken due to poor-quality roads the front spring, so it is required to replace it. And you can do it yourself, without contacting the car service. It remains only to know what it is better to choose from the range offered at 2110.
On the front suspension of VAZ-2110 when standard equipment Put springs 2108, on the rear suspension - 2110. In the absence original details, car enthusiasts advise to put SS20 highway, the car goes gently, stood on turns.
- What springs to put better on the prior?
If the springs are seen on the prior, it is recommended to put new original from the VAZ. Choose only a class depending on your tuning goals. The class "A" is more harsh. In the absence of the original, according to motorists, it is better to put a set with an understatement of Eibach Pro-Kit (-30 mm).
- What springs are better to put on the VAZ 2114?
The VAZ 2114 suspension is rather durable, and the need to replace parts occurs quite rarely. Therefore, not all car owners of cars 2114 know that it is better to choose from a wide range offered in the markets.
Sometimes there are springs from 2112 on the VAZ 2114, they are a little rigid, are designed for greater supply of cars, therefore they are somewhat raised 2112 - by 2-3 cm, it means that it is possible. If, on the contrary, there is a desire to undress the car, then it is recommended to purchase Eibach, and the front -5, and the rear -7, so that the car does not go.
When did you change the springs for the last time on your car? Tips for replacing springs.
Let's first figure it out what kind of springs and what are they needed for?
Spring suspension is an important mechanical part car. It absorbs and extinguishes the oscillations caused by the Rocket of the body while driving. The springs work is very closely related to the work of the shock absorber. So, the springs keep the weight of the car body, and the shock absorber controls the movement of the spring. Therefore, these components of the car are closely related to each other.
The estimated spring leads to a premature damage to the shock absorber. The shock absorber failed cannot fully limit the movement of the spring, it leads to a car star. Therefore, it is always necessary to comprehensively check the state of the springs and shock absorbers.
What important functions perform a spring?
- Keeps clearance at various loads
- Supports the weight of the car while driving
- Provide smoothness, stability and handling by car
- Smoothes the impact on bad road conditions
- Significantly reduces the shocks on the car body
- Constantly holding tires with expensive
- Creates comfort and safety
- Significantly prolongs the service life of shock absorbers and other pendant parts
But over time, the springs, like all other parts of the car, wears, become weaker and can even break. Worn springs are at risk of car safety by increasing the brake path, rubber wear and deterioration of the car
Among the causes of wear, the springs can be allocated:
- Metal fatigue
- Mechanical surface damage
- Natural wear
- Stones blows
- Increased loads on uneven roads of the road
- Corrosion
- Permanent overload
How can I check without visiting the car service, is it time to replace the springs?
Take care carefully to your car and answer a few questions:
- Is the spring broken? Carefully check the ends, because the springs are usually broken at the point in which they experience the greatest load.
- Is the spring rustled? A strong rust very relaxes the springs and worsens their quality.
- Is there a car high enough? Measure the distance from the center of the wheel to the edge of the wheel arches on each side of the front and rear. If one side is height less than another, one spring may have a defect, and both springs on the axis must be replaced.
- Exactly driving a car? When the car stands on a flat surface, look at it on the side to determine if the front of the car is below the surface than the rear, or vice versa.
If you answered "yes" at least one question, the springs should be replaced immediately.
Interesting facts and tips on replacing springs:
- Front and rear springs have a different degree of load. Permanent load is transmitted to the front springs, the rear springs are variable. This in turn affects the state and degree of wear. As a rule, the rear springs wear out more often.
- Springs must be changed in pairs. Different types The springs on the same axis can lead to an inclination of the body and, as a result, poor road retention.
- Simultaneously with the replacement of the springs, it is desirable to change shock absorbers.
- Using spacers in the spring is not recommended
- Ideal time to install new springs - during the replacement of shock absorbers, when the springs are removed deliberately. Thus, the work on replacing the springs is free of charge
So that the shock absorbers serve for a long time, car enthusiasts are recommended - on 2 shock absorbers change 1 shift springs.
Dear car enthusiasts, closely treat their safety and change the springs in a timely manner.
In our online store you can always order springs for any car. We are widely represented by manufacturers: KYB, MONROE, NHK, LESJÖFORS, Lovells Springs.
We work directly with official distributors, so we have low prices.
The content of the article:
Mercedes. -Benz S-Class On the springs, Ekaterinburg, Russia. Nikonov Springs on Mercedes W A couple of sets went to Minsk. 98 year s hp It is standing on the springs, who needs hemorrhoids with a pneumatic can put it.
Forum of the Official Club Mercedes in Russia - Mercedes -Benz. Club Russia. I, like many of you, thought and did not suspect that the r-ku was equipped with springs from behind. Pneumo-balsa stood only from behind.
On Mercedes, quite differently, the springs are taken away. The removal fit down from the bottom through the lever, and the plate is inserted into the turns. The pair of springs neoriginal stands 80, so your weave and drove.
It was decided to clearly change the springs to the springs, especially since it was not a "collective farm", but in ERS there is an option of configuration with springs. It is worth gas equipment, as I ride a lot of work and in the trunk of a balloon for 90 liters. Engines, transmissions, fuel systems. What we are worse than "engineers" from Arnot or others. Your rights in the section.
What we are worse than "engineers" from Arnot or others. I took the factory type from Omsk. But the ass is generally tough. On small pits, rocks in touch. How do you go to you. The other day I also plan to remake. Tell me Pzhs, what should be the total length rear rack m, see? ATP and from which machine spring and shock absorber? And what did Merca sold. He's a shame - the hands applied, the rear suspension corrected. Cool to this model? You had a BMWAH. Even stupid - how can you take a puzzle temporarily instead of a jeep, if you already have a puzotroker.
There are such toli resistors for diodes that need to cling on the wires and they give resistance to a clear computer as - all is well. This electrician must be connected normal. Toyota Chaser. Blue Nishchebrhod. Previously compression engine. Shakes out of the springs. Or cut either soft to put. Maybe the drawings are modified, which is necessary to make a shoreschair? Reply to deleted comment by Kabard, added 11 months ago. The same as native. And from which machine springs and shock absorber? It was a temporary option before purchasing an SUV.
It is welded from Honda SRV risen at the place. From the soul of the brother's soul in the soul.
In the conditions of the poor state of the road, the pendant details become weak item. The main ones are shock absorbers and springs. Let us discuss the question: whether it is necessary to change the springs when replacing shock absorbers.
What is needed for?
Shock absorber and spring always work in a pair, performing two parts of one task - ensuring the smoothness of the stroke and handling of the machine. Spring is an elastic suspension element that softens the shocks and blows from riding on an uneven road. After hitting the obstacle, the wheel breaks away from the ground and becomes uncontrollable.The task of the spring - to return it to the place as soon as possible, but after hitting the road the wheel bounces back, and the softer spring - the stronger it can squeeze and absorb more energy. Because This energy is consumed very slowly, then the oscillations will not fluff for a long time, fueled by new jogging from irregularities on the road. To solve this problem, a shock absorber comes to the rescue, which is designed for rapid waste of wheel oscillations by converting to heat swaying body and suspension.
Due to its complexity, the shock absorber is a less reliable device requiring periodic replacement with a deterioration in the quality of work.
What should be changed in the suspension?
The normal operation of the suspension is possible only with the right interaction and complete performance of its functions by the shock absorber and spring. While the springs hold the mass of the car, their movements are controlled by shock absorbers - respectively they depend on each other. If some of the components "not modifies", he shifts part of the work on the "partner". If the spring sends, the shock absorber overloaded with additional work is much faster, and a bad shock absorber cannot normally limit the movement of the spring and swing the car.The road, and the degree of negative impact on shock absorbers and tips, and braking machines of the machine depends on the state of the spring. But why loses his springs properties? This is due to:
- Metal fatigue depending on the natural wear;
- Surface damage (friction, stones, complete compression);
- Frequent car overload or overcoming at the speed of uneven roads of the road;
- Metal corrosion (increased humidity, effect of road salt).
The most optimal when replacing shock absorbers also change the springs, but it is expensive and not so necessary, given that visually cannot be determined by some characteristics of the springs, for example, the degree of metal fatigue.
Installing new shock absorbers in a complex with old and beginner rust springs is the repair of the suspension by half when shortening the service life of all suspension nodes. With the simultaneous replacement of all parts, the suspension will be restored to the original state. As an additional bonus, part of the cost will be returned at the expense of the savings on dual payment of work.
Choose for you but springs always change with:
- Their breakdown (usually they break in the highest or lower twist);
- Visible corrosion or metal damage;
- Reduction of the car height (it is necessary to measure and compare the distance between the wheel center and the edge of the wheel arch on all four wheels);
- The difference in the height of the front and back of the car.
It is necessary to recall that as well as shock absorbers, the springs change pairs to the axis, otherwise, due to the different states, the suspension will occur, which will affect the controllability.
