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 of the 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 of springs on one axis can lead to an inclination of the body and, as a result, poor way to hold.
- 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.
Suspension springs of any vehicle perform a lot of important functions. Correctly selected, they have a qualitative impact on the entire process of driving and its carrying capacity, make the road surfaces less noticeable for the driver, increase comfort when traveling, especially long.
Naturally, the more adequately the car suspension system is working, the smallest wear is the main units and the body itself. The fact that the springs are extremely important element is confirmed by the fact that during their production they are marked - it allows you to avoid confusion when choosing and installing. Marking for stiffness and color is mandatory for all manufacturers.
Main varieties
Four types of springs are widespread, which are installed on all modern cars.
- Standard. They can be considered a basic option, which is established in the factory conditions in the manufacture of a car. Such elements are designed to operate the vehicle under standard conditions governed by the technical passport of the car.
- Reinforced. Designed to improve the performance of the vehicle, which is used in off-road conditions, with constant shipping or towing trailers.
- Histe. After installation, contribute to the increase in the road lumen and car carrying capacity.
- Learning. Basically, such samples establish sports ride lovers, because they underestimate the clearance and shift the center of gravity of the car to the book.
Why the marking is required by color
Color marking, simplifying the life of motorists when choosing, is a consequence of a complex production process. It is characterized by a huge number of complex technological operations, which is very difficult, and often it is impossible to control.
Therefore, all manufacturers carrying out the mass production of springs, after manufacture, consider it necessary to conduct comparative tests of products. As a result, the classification of color appeared, since only so you can distinguish different elements after the manufacture. Of course, there are other ways to identify springs of different species, but this simplest and reliable.
Differences springs depending on their marking
In addition to color, its diameter serves as the main "identifier" for any spring. It is not determined by a manufacturer, but a vehicle developer, and in the production process, a spontaneous change is not subject to, as well as the color of the springs of the shock absorbers. Nevertheless, the following parameters of finished products depend on the manufacturer:
The difference between these elements in color is a prerequisite, since in other parameters, it is impossible to determine the degree of rigidity. At the factory for this, a special test is used - after compressing the finished sample with a certain force, the height is measured. This parameter is strictly regulated and if the finished element does not match the norm, it is rejected. Each normal spring is assigned class - "a" for those that fall within the boundaries of the top field of admission, and "B" - for those whose height corresponds to the lower tolerance field.
Classification Spring Suspension in Color
Despite the abundance of possible colors, determine the degree of rigidity is quite easy. All springs installed on the car of the VAZ family have two classes that are marked with certain colors:
- class A - white, yellow, orange and brown paint;
- class B - black, blue, blue and yellow paint.
In order to independently determine the stiffness of the color, you need to pay attention to the strip, which is on the outside of the turn - it is it that defines this parameter. The color of the spring itself can be different because it depends on the protective coating used in order to reduce the influence of the unfavorable environment and corrosion. Epoxy or chlore accepted enamel is used as such a coating. Therefore, the decoding of the springs in color is possible only by strip on the turns.
The color of the most protective coating also plays a role in marking the springs of shock absorbers. It defines the car model for which the spring is intended, as well as its purpose - to install in front or rear. Although if you take into account the plants, producing vases, they prefer to paint the front springs exclusively in black. You can consider samples with a variable distance between the turns - they have a blue color.
How to use springs according to their class
Both classes are "A" and "B", have absolutely performance, and can be installed on the car equally. The only thing that should be remembered when installing - the color of the suspension springs must be identical on both sides of the car. Otherwise, a small, but permanent bond roll on one of the parties can be formed, which will significantly worsen the handling of the car and its sustainability on the road. In addition, if the color of the rigidity springs is different, it will lead to the accelerated wear of the nodes of the entire "hodovka".
Experts often speak of the need to use on one TC elements of only one class. In extreme cases, it is allowed to install on the front axle of the class A Spring, on the rear "B". But in no case on the contrary, it is categorically unacceptable. To avoid confusion during self-replacement, the color marking must match, as well as their class.
Class "A" and "B" - are distinguished differences
For many motorists, the rigidity of the color springs is equivalent to stiffness by classes. The class "A", regardless of the color, more tough than the class "B". In fact, this is not quite the right statement. The class "A" is really more suitable for cars, which are often exploited with high load. But the difference here is very small - about 25 kg. Despite the mandatory labeling, there are still samples on which it is absent. In this case, even if the color marking of the items is identical, it is better to refuse to use them.
Many motorists are underestimated by the value of high-quality springs, especially with the intensive operation of the car. Springs are not in vain have labeling in colors - it is so much easier to navigate the beginning driver, which is first engaged in his own replacement for this element. Acquisition of good quality products, even at a higher price, inevitably pay off a softer ride, less wear of the car, as well as smaller loads on the driver itself. It has been scientifically proven that high vibration loads per person lead to fast fatigue and a decrease in concentration when driving.
It is no secret that the suspension is experiencing serious "shocks" due to the quality of roads. And in order to somehow minimize the impact, the springs are installed. They affect not only the main parameter as the height of the body over the ground, but allows you to hold the car in a practically defined altitude, even taking into account the cargo taken on board. In addition, there is such an opinion that the effect of springs in general on the suspension is favorable, the controllability of the machine is improved.
Remember that the device of all springs in general is identical, the only differences that may be the rigidity indicator and the type of products themselves.
Keep the form that depending on the type of part, rolls in turns may exceed the permissible 3-4 degrees. At properly selected springs, this indicator is holding at no more than two degrees. Therefore, it is very important to choose the right element correctly, which will correspond not only to the nature of your driving, but also the basic requirements of the manufacturer to a specific model.
In addition, do not forget that partially selection of the right spring depends on where it is installed. After all, there are two accommodation options - on the rack and separately.
Spring B.
For example, it is often when the location of the shock absorber and spring springs, choose barrel-shaped and conical forms.
But, for installation on the rack, preference is given to cylindrical springs. The true cause of such "policies" manufacturers is not known, but there is an opinion that such a format due to the fact that the racks are usually installed at a right angle. And when the arrangement of separate, there is a small angle and, in this case, the cone and the "barrel" allows you to "eliminate" the voltage at the "game" of the springs on the bumps and during the seed due to overload.
In general, it is possible to notice such a pattern when a joint pair of racks and spring is installed, the main emphasis is on rigidity and clearance. But, it is also necessary to take into account that more rigid springs can be applied. Regarding a separate location, the absorption of blows occurs in several trajectories, depending on the modification. From what, many assure that the separate type is more adapted to ride through the bumpy roads and the city, in the cabin is comfortable, because in this case, the suspension works better with multidirectional blows.
Stiffness how to determine?
First, let's fix what spring is? This is a mandatory component of the suspension, which is represented as a certain elastic element. It provides softening of blows, jolts, including with sharp braking and starts. The meaning of the spring is to quickly return the wheel to the original "position" after the obstacle.
Too tough item significantly worsens the car handling, especially on uneven roads. However, the favorable side of increased rigidity is greater safety when driving at high speeds. That is, it does not allow the body to rock as much as it is too soft. The latter are coping with almost all the wells without discomfort for the driver, but with such springs it is difficult to enter into devices.
Remember, there are several main factors that affect rigidity. Knowing them, you can independently determine the type of own element installed on the suspension. So:
1. The diameter of the rod itself. Remember the important pattern, the thickness of the rod, the more rigid item.
2. Spring diameter on the outside. The larger the diameter, the less the actual rigidity.
3. Form. There are several main types: conical, cylindrical, "barrel-shaped". Each variety has its own characteristics and characteristics. There are also combined.
4. Number of turns. The pattern is such - the more turns, the less rigidity will be.
It is determined simply enough. In most cases, the manufacturer independently shall be labeled, according to which the product belongs to which class.
Remember that marking is yellow, indicates a length of up to 240 mm. But, mostly all indicators that will be required to calculate rigidity are on the product.
In the event that no labeling is found, it is possible to calculate the indicator as follows. So, harbor scales (ordinary outdoor), wooden bar, ruler, product itself. You need to lay a bar on the scales, but remember that the boards width should be larger than the diameter of the spring. Next, we take the second board and press it from above and measure the length of the product, naturally, without taking into account the boards. Alone or using a special press, the spring must be squeezed to a certain level. As a rule, it is 40 mm. Record information from the scales. Next, having an initial length in the collapsed position and compressed, calculate the difference. Next, the resulting weight is required after compressing, divided by the difference, thereby obtaining the stringency indicator.
There are also more complex methods for calculating, but it is not worth talking about them, because it will be necessary, at least two more values \u200b\u200bthat can be deduced, knowing the formulas and the laws of the throat, as well as the theory of proportionality. For a regular driver, this calculus method is superfluous, you can find it much easier.
Resource, and what better to choose?
As a rule, among the most sought-after requests in search engines, this is what "mileage" from the springs, and what better to choose? What is better, to judge is difficult, because every motorist has its own preferences in this regard. Someone loves a quick ride and for him the hardness of the security requirement, someone prefers comfort. All individually, moreover, today a huge number of manufacturers who can offer universal springs, including the so-called adjustable.
What in principle should be understood under the word regulated? You just think that everything is simple, but they may vary over each other. There are two types:
With an adjustable "nut", which hits the cylinder and allows you to increase, and reduce depending on the "cheating" stiffness.
With adjustable spacer, in principle, many of these two points do not even share
What is the resource? It is difficult to answer the deadline for use, because it all depends on the quality of the roads directly. Somewhere springs serve 100,000 km, and somewhere not "pass" and 10,000 km. In general, it can be noted that the more stiffness, the longest, and vice versa. The middle "mileage" rarely exceeds 50,000 km.
Malfunctions and their signs
As such faults are not so much, in fact, the structural part of this element does not represent anything complicated. Share such types of problems:
Open the rod at the edges.
Bentally "tired" metal.
Bursting a turn.
In general, everything, nothing more add. Either the spring kicked, because of frequent overloads, it was either burst, everything.
What are the signs of faults? Here you can mark a wide range of signs:
2. Appearance or stuffs.
3. Car valve. That is, the situation when when braking and start, the machine "peels".
4. "Sleeping" suspension. When, when driving on irregularities, pits, "hollows", the touch of metal elements occurs, for example, the turns of each other. In serviceable products, this should not be.
5. Large rolls in turns.
6. The discrepancy in the height of the front and the stern.
The reasons of all this are diverse:
Worn, because of old age.
Incorrect operation (transportation of large loads).
Reagents and in general chemistry.
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 the torsions on vehicles were replaced on the springs, controllability 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 put on the VAZ-2102 universals, 21014. They have increased by 21 mm. 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 is put on the rear suspension VAZ 21102-21104, 2112, 2114, on the front and rear suspension 21122 and 21124. The 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. Patency of cars on off-road, dirt roads deteriorate significantly.
- 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 models, except for "Oka".
Selection depending on the manufacturer
Often Drivers try to buy original, factory replacement, not wanting to experiment. However, there is a worthy 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 a budget version, 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 characteristics.
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 the starting position, 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 sports tuning on the VAZ-2107, 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. The factory is too soft, and the car quickly loses controllability, the bottom is scratched on the road surface. 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 the VAZ-2110, with a standard configuration, the springs 2108 are put on the rear suspension - 2110. In the absence of original parts, car enthusiasts advise to put the SS20 highway, the machine goes softly, the rotation is mild.
- 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.
It is no secret that the quality of domestic roads leaves much to be desired, so the serviceability and proper adjustment of all elements of the automotive suspension is an important factor in 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, which pay special attention to. 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 its 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 may result in frequent vehicle overloads and overcoming uneven roads of the road at high speeds, and completes the "black work" of metal corrosion, due to increased levels of humidity and the 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.
