Automobile rubber, like any thing, has its own certain resource and strength threshold. Therefore, it is not surprising that with intensive use of the car, there is a rapid wear of the rubber. Wear can be observed on any axle and side of the vehicle, where there is any malfunction or violation. The normal life of tires is within 4-6 years, taking into account if the rubber has been used carefully and accurately during this entire period.
Today we will find out for what reasons rubber can be eaten? Here are the 5 most common reasons.
1. Toe collapse.
Erosion of rubber can occur due to the uneven arrangement of the wheels in relation to the body. Camber is responsible for the position of the wheel on the vertical axis, while the toe is responsible for the placement of the wheels when entering a turn.
Why, if the readings are incorrect, after a while it can start to eat up rubber from all sides and on different wheels. For example, if wear is observed on the inside, then too much inward slope is made. This position of the wheels is called camber. Accordingly, if the outer side is worn, then this is a positive camber. This means the wheels are inclined in different directions. Also, if the camber is incorrect, the rubber can eat up on one wheel from the inside, on the other from the outside.
Why are the wheel alignment settings confusing? There are several reasons:
Not timely control, long operation of the car on bad roads.
Impact on a curb, pit and other potholes and irregularities.
After repairing the suspension, replacing levers, steering, rods, etc.
Suspension elements wear.
The jet thrust is bent, there is play in the bushings, etc.
Curved bridges, the body itself.
2. Low or high tire pressure.
When the wheels are operated with low pressure, accelerated wear of the part of the tire that breaks and bends begins. At low pressure:
The rim starts to press against the surface of the tire;
The tire structure flexes at the edges.
That is, it is clear that with insufficient, the side part often wears out, both from the inside and from the outside. With an excess of pressure, respectively, wear will be observed in the middle of the tire.
3. Uneven pressure.
A common reason for those motorists who do not monitor the car and the pressure in the wheels in general. Uneven wheel pressure on one axle almost always leads to wear on one side or the other, depending on the operating conditions. For example, on the right front wheel the pressure is 1.5 Ba, on the opposite to it it is already 2.0 Ba. That is, there is a difference, which means that uneven wear occurs. In such cases, the car often starts to "drive" to one side, as a rule, where there is less pressure. There is also a “zhor” of rubber.
4. Improper storage of tires in the summer or winter season... It is known that it is impossible to store tires one on top of the other, especially if they are stored with dressed wheels. Under the pressure of the weight, the tires bend to one side. After a long "lying" in this position, the tires in most cases are no longer amenable to restoration.
The correct method of storing tires involves installing the wheels on the edge, that is, as the wheels are on the car, so they need to be stored. Scrolling periodically so as not to be caught. Better yet, hang. If the tires are on the rims, then you can lay them flat.
5. Aging, manufacturing defects.
Nowadays, it is rare for people to use tires longer than their shelf life; rubber tends to deteriorate earlier from overuse. But, still, do not discard this reason. Check for cracks, pores on the rubber. Leakage violation, all this directly affects the operation of tires. If the rubber is damaged, moisture gets inside, which eventually leads to the destruction of the metal shell of the tire, the so-called cord.
Cracked rubber
According to the manufacturer's standards, the use of tires that are more than ten years old is prohibited.
Of course, this is not the whole list of reasons why rubber is eaten up. There are a number of other problems, but they are less common. So:
Violation of the disc shape, for example, after a strong impact on a curb, pit, etc.
Damage and malfunction of the suspension, for example, a factory or acquired defect, levers.
Damage, such as bent after being hit hard.
A worn-out hub, of course, the backlash in this case should be strong, it will be difficult not to notice it. But, nevertheless, when checking by the exclusion method, it will not be superfluous to check this node too.
After the impact, the tire slid off the disk, changed the geometry of the landing. Drive into the "tire" or remove the wheels yourself, spin it, if the tire slid off, it will be noticeable.
Changing the geometry of the body. After a strong impact (accident) or overturning of the machine. It can only be determined with a special tool. It is not uncommon that the reason for the violation of the geometry of the body is that the car is simply welded from several parts. That is, "constructor", such are common in the Far East, where it is cheaper to overtake the cut from Japan, and then, having welded it, "push" like a normal car.
Conclusion
As a result, I would like to emphasize the importance of periodic diagnostics of the suspension, checking the camber, tire pressure. By the way, experts and manufacturers recommend checking the camber on average every 3,000-5,000 km, taking into account the road surface, possibly more often.
During the noticed reason, it will save the rubber from premature burn, and will also allow, possibly, preserve the health and life of the driver and passengers. Good luck on the road.
What can a worn tire tell us about? We determine the malfunction by the nature of the tire wear. Eats rubber from the inside of the front
Critical adjustments
Accurate diagnosis
True reason
For your information. Not all machines provide the ability to adjust all three wheel angles. In the presence of defects and the absence of the necessary adjustments, the reason should be sought in non-original and worn suspension components (silent blocks, etc. bushings). Do not discount the factory defect of tires or incorrect adjustment of the chassis levers.
Topical issues
Why does the similarity collapse go astray?
Verdict
autobann.su
»
Why does the car eat rubber from the outside and inside of the front wheels? Read and eliminate
Preliminary estimate
When the first signs of wear appear, the malfunction should be eliminated as soon as possible. Most of the reasons require professional equipment. But, the initial diagnosis can be made independently. To do this, you need to drive onto a flat and empty road. Start the car at a speed of 30 km / h, then leave the steering wheel for a few seconds.
If the car does not deviate from a straight line, then the problem is in the tires. With a sharp departure to the side, the reason is in the wheel alignment angles, suspension breakdowns, steering malfunctions. Often these problems are accompanied by various knocks.
Tire pressure. When the pressure in one of the wheels decreases, a high load falls on it. This increases the wear on this tire. When the first signs of scuffing appear on the tires, the first thing to do is to check the pressure in the wheels. This can be done at any tire service or gas station. But, you just need to take into account that modern manometers do not give one hundred percent measurement accuracy. Therefore, it is advisable to check using 2 pressure gauges. This will increase the measurement accuracy.
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portalvaz.ru
How to determine the cause of rapid tire wear based on the condition of the tire?
Few car enthusiasts take tire wear seriously. When the "rubber" loses its grip qualities, it is customary to change it, but the exact replacement cycle is not so easy to determine. Even by maintaining the correct tire pressure throughout a vehicle's life, they can wear out much faster than their manufacturer predicts. This is due to the fact that there are certain malfunctions in the car that lead to early wear of the rubber tread.
By looking at the tire wear pattern of a car, you can find out which specific malfunction is in the engine, suspension or other units. After its elimination, the rubber will serve much longer, and the car will work in the correct mode.
Strong wear on the inside or outside of the "rubber"
One-sided tire wear is the most common problem among motorists. "Rubber" can be more abraded from the inside or outside, and after a while it will become unsuitable for movement on the roads. Such a problem diagnoses for the driver the fact that the camber is incorrectly performed on his car.
If camber is set incorrectly and the top of the wheel is off-center or toward the center of the car by a few degrees, tire wear on one side will increase. In some situations, a deviation from zero camber is necessary for the driver, for example, if he participates in races. By setting negative camber, it is possible to improve the contact patch of the tire with the road surface, and the car enters corners better.
In urban conditions, cars must be set to zero camber, otherwise there will be problems with directional stability, and even driving on a straight road will become unstable. To solve the problem with one-sided internal or external tire wear, it is necessary to carry out the camber of the car.
Increased wear on the outside and inside of the tire
When the tread of a car tire wears out a lot at the edges, but at the same time remains intact in the center, this clearly indicates problems with the pressure in the "rubber" during the operation of the car. When the tire pressure is low, the inner part of the tire does not adhere tightly to the road surface. This leads not only to increased tire wear on both sides, but also to increased fuel consumption, braking distances and handling problems.
Driving with low tire pressure is dangerous for both the driver and other road users. If you regularly maintain the tire pressure at the same level, but still have similar wear, we advise you to check in the reference information for the car, whether you have chosen the correct tire pressure indicator. It is also recommended to change the pump for inflating the car tire, which may show incorrect results.
Dents on tires
Even the rubber surface of tires can become covered with small dents that change the shape of the tire and render it unusable. Bumps and depressions form along the edges of the tires, and this is due to problems with the suspension.
When driving on the road, the car constantly bounces and falls, and the suspension should absorb the impact of the tires on the roadway so that they do not dents on them. If there are problems with the suspension or undercarriage, there may be inadequate cushioning of impacts to the road surface.
Not every driver will be able to carry out a full diagnosis of the suspension and chassis of the car on his own. That is why in such a situation it is better to contact a specialist or try to replace the shock absorbers. In most cases, it is they who are to blame for the appearance of dents on the tires.
Prolonged diagonal dent and heavy tread wear
This problem is relevant for the rear axle of a front wheel drive vehicle. Most often, it occurs when a passenger car is operated in a cargo mode, that is, it often carries loads for which it is not designed. Also, taxi drivers can often observe a similar problem.
If the car is not used as a means for the constant transportation of heavy loads, but at the same time it has a similar problem, the reason for this is incorrect alignment. As a result, before installing new tires on the car, it is necessary to check the camber and set it to zero.
Excessive tread wear in the middle of the tire
If the tread is almost completely worn out in the middle, but such serious wear is not noticed along the edges, then the problem is driving on the roads with high tire pressure. Check again if you really are inflating the tire to the value recommended by the manufacturer of your car model.
Some experienced drivers claim that when driving on an inflated tire, less gas is consumed, and this is true. This is due to the fact that the car loses good grip, and all its mass is shifted to the middle of the tire, pressing it against the road surface. Such savings in gasoline will translate into the need for frequent tire changes due to their rapid wear.
It should be noted that in the cold season, tire pressure may drop due to weather factors. If you go on a trip on "ice" tires, then some time after the start of movement, the air in the tires will start to seriously warm up, and this can lead to an excess of the pressure recommended by the car manufacturer. As a result, the driver will experience poor traction and tire wear in the middle.
To avoid problems with tire pressure build-up when accelerating in cold weather, check that the tire pressure matches the recommended value before each ride.
Cracked tires
Another problem that high or low tire pressure can lead to is cracking. The impact of a tire on a curb or a pit is a stressful condition for the tire, which it can withstand without damage at ideal pressure. If longitudinal cracks appear on the sidewall of the tire, it means that it has been used for a long time with insufficient pressure.
Also, small cracks may appear on the tire, and from them we can say that the rubber has come to the end of its service life. In such tires, chemical decomposition of elements begins, which allow it to retain its properties. It follows from this that the use of such tires is prohibited.
Hernia on the splint
When a tire hits a hard surface with increased pressure, a hernia may form inside it. This is due to damage to the inner layer of the rubber, and it is far from immediately possible to notice the appearance of a hernia. After a week or two or even more, the hernia will manifest itself as a bulge on one of the lateral edges of the splint.
Caution: It is extremely dangerous to drive a car with a hernia on its tire. If such a problem appears, it is immediately recommended to change the tire to a new one.
The outer blocks of the tread have received convex wear
It is most difficult to diagnose such a problem, since it is not visible visually. To determine the presence of convex wear on the side faces of the tread, you need to slide your finger over them. You can feel that the low edges of the tread block are worn in a round shape, while the high edges, on the contrary, are sharpened.
If a similar problem manifests itself on a car, it is necessary to check the wheel bearings and ball joints. It is worth noting that the outer blocks of the tread may wear out on one tire, while the rest will be fine.
The leading edge of the tread is badly worn
One of the most common problems is wear on the leading edge of the tread. The main problem is that most drivers believe that tires should wear out in this way while operating, but this is not the case. This wear indicates that the vehicle has some suspension problem. Most likely we are talking about a malfunction of ball bearings or silent blocks.
Diagnosis of such a problem is possible only "by touch". To do this, you need to run your hand along the edges of the tread teeth. If some of the teeth are sharper than others, there is a problem.
"Balloons" on the tire
If there are certain areas on a car tire that are more worn out than others, they are usually called “bald spots” or spots. Most often, these spots appear on the cars of drivers who like to accelerate and brake sharply. In case of rare (including emergency) braking, if the car does not have an ABS system, the wheels are blocked, and the car slides a section on the tire along the roadway. Slipping causes the temperature of the tire to rise and causes immediate wear.
In addition, stains on the tires of a car can appear if it is idle for a long time. When parked for a long time, a separate section of the tire carries the entire weight of the car. Due to its structure, it can deform over time.
TOP 5 reasons why he eats rubber
Automobile rubber, like any thing, has its own certain resource and strength threshold. Therefore, it is not surprising that with intensive use of the car, there is a rapid wear of the rubber. Wear can be observed on any axle and side of the vehicle, where there is any malfunction or violation. The normal life of tires is within 4-6 years, taking into account if the rubber has been used carefully and accurately during this entire period.
Today we will find out for what reasons rubber can be eaten? Here are the 5 most common reasons.
In the photo: rubber wear, both from the outside and the inside 1. Toe collapse.
Erosion of rubber can occur due to the uneven arrangement of the wheels in relation to the body. Camber is responsible for the position of the wheel on the vertical axis, while the toe is responsible for the placement of the wheels when entering a turn.
Why, if the readings are incorrect, after a while it can start to eat up rubber from all sides and on different wheels. For example, if wear is observed on the inside, then too much inward slope is made. This position of the wheels is called negative camber. Accordingly, if the outer side is worn, then this is a positive camber. This means the wheels are inclined in different directions. Also, if the camber is incorrect, the rubber can eat up on one wheel from the inside, on the other from the outside.
Positive and negative camber Why are the wheel alignment settings confusing? There are several reasons:
Not timely control, long operation of the car on bad roads.
Impact on a curb, pit and other potholes and irregularities.
After repairing the suspension, replacing levers, silent blocks, steering tips, rods, etc.
Suspension elements wear.
The jet thrust is bent, there is play in the bushings, etc.
Curved bridges, the body itself.
2. Low or high tire pressure.
When the wheels are operated with low pressure, accelerated wear of the part of the tire that breaks and bends begins. At low pressure:
The rim starts to press against the surface of the tire;
The tire structure flexes at the edges.
Tire pressure That is, it is clear that with insufficient pressure, the side part often wears out, both from the inside and from the outside. With an excess of pressure, respectively, wear will be observed in the middle of the tire.
3. Uneven pressure.
A common reason for those motorists who do not monitor the car and the pressure in the wheels in general. Uneven wheel pressure on one axle almost always leads to wear on one side or the other, depending on the operating conditions. For example, on the right front wheel the pressure is 1.5 Ba, on the opposite to it it is already 2.0 Ba. That is, there is a difference, which means that uneven wear occurs. In such cases, the car often starts to "drive" to one side, as a rule, where there is less pressure. There is also a “zhor” of rubber.
4. Improper storage of tires during the summer or winter season. It is known that it is impossible to store tires one on top of the other, especially if they are stored with dressed wheels. Under the pressure of the weight, the tires bend to one side. After a long "lying" in this position, the tires in most cases are no longer amenable to restoration.
Proper storage of tires The correct method of storing tires involves installing the wheels on the edge, that is, as the wheels are on the car, so they need to be stored. Scrolling periodically so as not to be caught. Better yet, hang. If the tires are on the rims, then you can lay them flat.
5. Aging, manufacturing defects.
Nowadays, it is rare for people to use tires longer than their shelf life; rubber tends to deteriorate earlier from overuse. But, still, do not discard this reason. Check for cracks, pores on the rubber. Leakage violation, all this directly affects the operation of tires. If the rubber is damaged, moisture gets inside, which eventually leads to the destruction of the metal shell of the tire, the so-called cord.
Cracked rubber According to the manufacturer's standards, the use of tires that are more than ten years old is prohibited.
Of course, this is not the whole list of reasons why rubber is eaten up. There are a number of other problems, but they are less common. So:
Violation of the disc shape, for example, after a strong impact on a curb, pit, etc.
Disc bent Damage and malfunction of the suspension, for example, factory or acquired defect in the steering knuckle, levers.
Damage to the strut, such as bent after a strong impact.
Bent shock absorber strut A worn-out hub bearing, of course, the backlash in this case should be strong, it will be difficult not to notice it. But, nevertheless, when checking by the exclusion method, it will not be superfluous to check this node too.
After the impact, the tire slid off the disk, changed the geometry of the landing. Drive into the "tire" or remove the wheels yourself, spin it, if the tire slid off, it will be noticeable.
Changing the geometry of the body. After a strong impact (accident) or overturning of the machine. It can only be determined with a special tool. It is not uncommon that the reason for the violation of the geometry of the body is that the car is simply welded from several parts. That is, "constructor", such are common in the Far East, where it is cheaper to overtake the cut from Japan, and then, having welded it, "push" like a normal car.
Conclusion
As a result, I would like to emphasize the importance of periodic diagnostics of the suspension, checking the camber, tire pressure. By the way, experts and manufacturers recommend checking the camber on average every 3,000-5,000 km, taking into account the road surface, possibly more often.
During the noticed reason, it will save the rubber from premature burn, and will also allow, possibly, preserve the health and life of the driver and passengers. Good luck on the road.
avtoexperts.ru
... Eats rubber from the outside at the front
Why does it eat rubber from the inside of the front or from the outside on both wheels
Tires are a consumable and seasonal material. It is difficult to predict the degree of their wear depending on the mileage theoretically. Almost everything depends on the rubber composition of the mixture. Over the years, the average service life is about 5-6 years. This is the border, upon reaching which the product will acquire cracks, and if there are cracks, there is a high risk of getting into a dangerous situation. However, the tire may lose its proper form much earlier.
Premature wear or eats of rubber on the car from the outside of the front: treatment
A common cause of short wheel change intervals is uneven tread wear. Installing a new set of tires can rarely correct the situation, since a malfunction is often the result of improper tuning of the car and untimely maintenance of it. Even a rudimentary tire pressure monitoring procedure can prevent untimely product failure in the tire industry.
Critical adjustments
The front suspension is a complex mechanism, but amenable to adjustment. Therefore, if it eats rubber from the inside of the front, you must first analyze its current settings. And the premature wear of the outer arm is also a reason to inspect the relative position of the front suspension arms.
This chassis layout is designed not only to optimize tire durability. First of all, other goals are pursued - increasing the stability of the car and ensuring easy handling. In the process of adjustment, it is customary to distinguish between three types of parameters:
- Camber is the angle between the longitudinal plane of the wheel and the vertical axis or the position of the wheels in relation to the road surface. Affects the area of the road contact patch. A negative value is preferred.
- Toe-in is the position of the tires relative to the horizontal plane. It is required to compensate for the elastic movements of rubber parts when transferring traction to the wheels.
- Caster - the angle of inclination of the transverse vertical plane of the wheel relative to the vertical axis. It is needed to ensure self-return of the steering wheel when exiting a turn.
Accurate diagnosis
One-sided wear of the tread in most cases indicates that the above settings were incorrectly set. In particular, the rapid abrasion of the outer shoulder of the tire causes increased positive camber. In this case, the top of the tire is tilted away from the center of the vehicle. There is no universally correct adjustment - each vehicle has its own set of conditional values.
What to do if eats rubber from the inside of the front: possible causes
Often there is a non-standard situation in the form of the presence of various wear and tear on tires installed on the same axle. Let's say the right wheel "ate" from the outside, the left - from the inside. The exact reason is an incorrect operation to adjust the geometry of the relative position of the suspension elements.
True reason
The list of actions in the case when it eats rubber from the outside in front is partly relevant when identifying rapid wear of the inner shoulders. When identifying increased abrasion of the treadmill from the inner edge, the nature of the malfunction should be attributed to one of the groups:
- The side checkers are erased evenly - the camber adjustment is incorrect.
- Herringbone sawtooth wear - toe out of specification.
Variants of combining the fixed types of geometry of the worn out tread are not excluded. Under such circumstances, the masters talk about incorrect tuning and camber and toe. 
For your information. Not all machines provide the ability to adjust all three wheel angles. In the presence of defects and the absence of the necessary adjustments, the cause should be looked for in non-original and worn suspension components (silent blocks, etc. bushings). Do not discount the factory defect of tires or incorrect adjustment of the chassis levers.
It is not uncommon for it to "eat" rubber from behind from one side. Worn rear suspension bushings are a probable cause of a malfunction. However, tuned struts and various kinds of spacers can also cause deviations in the geometry of the tires used.
Topical issues
Why does the similarity collapse go astray?
A bad road is not just detrimental to chassis component life. She also puts a negative imprint on their relative position. Timely control of the adjustments is necessary in the following cases:
- After a strong impact on the curb, pits, potholes and other unevenness of the roadway.
- At the end of the replacement of suspension elements.
Attention! Wear on the suspension structure consumables also knocks down the mounting angles.
The components are original and the camber is correct: the tire still wears out unevenly
It is likely that the hub bearing has become unusable. In the presence of such a malfunction, it is difficult not to notice the backlash, swinging the wheel in different directions. If it is possible to deal with this ailment, then it is difficult to change the incorrect geometry of the body. And due to the bent bearing part, there may well be rubber on the inside of the back or front of the car.
Premature wear does not meet the above criteria
The cases of asymmetric "eating" of rubber products are discussed above. Symmetrical cases include the following cases of tread wear:
- On both sides: reduced tire pressure.
- Center: increased tire pressure.
It is not uncommon for a situation where on the front / rear axle one of the tires works faster than the other. The only argument in favor of this state of affairs is the different pressures in the tires located on the same axle. As a result, the car is driven sideways and there is increased friction in the wheel with less air.
Verdict
Probable malfunctions causing uneven tread wear are:
- Eats rubber from the inner edge. If there is a herringbone on the treadmill, the problem is incorrect toe; even wear is a matter of a false camber angle.
- Eating rubber from the outside - positive camber is to blame.
Camber-toe settings are within tolerance - see the following:
- Wear of rubber suspension assemblies.
- Correctness of the shape of the rack flanges.
- Compliance with the design of the support bearings and various spacers to the requirements of the manufacturer.
A damaged body can also cause asymmetric geometry of the working part of the tire. Another likely cause is a noticeable backlash in the hub bearing.
Why does the car eat rubber from the outside and inside of the front wheels? Read and fix "
Why does the car eat rubber from the outside and inside of the front wheels? Read and eliminate
Many car enthusiasts are interested in why the car eats rubber from the outside and inside of the front wheels. This problem is quite common. Moreover, the difficulty lies in the inability of the craftsmen to accurately determine the cause of the breakdown, and in fact it is far from always lying on the surface. Therefore, it is desirable for the owner to know the main types of breakdowns that lead to increased wear of parts. Some of the faults can be repaired right in the garage. This will allow you to avoid unnecessary trips to the service, although no one canceled the diagnosis. Knowing the reasons, you can avoid mistakes on the part of careless or inept mechanics.
Why does the car eat rubber from the outside and inside of the front wheels? Everyone knows that automobile rubber wears out over time, and, first of all, it concerns the front wheels. There are several factors at once that influence this process. Actually, not too active tire wear is the norm for the car. First of all, the tires on the inner side of the wheel are erased. This is due to the presence of castor. In theory, under normal conditions, wheel wear becomes noticeable only after 2-3 seasons. With more rapid wear, it is necessary to look for the cause of the problem.
Preliminary
site
Hydrometeorological center warned of grain yield decline / Surfingbird
The grain harvest in Russia this year will be 15-20% lower than last year, said Dmitry Kiktev, head of the Russian Hydrometeorological Center. Last year, Russia harvested a record 135.4 million tons of grain
The Hydrometeorological Center expects the grain harvest in Russia this year to be 15-20% lower than last year. Interfax reports this with reference to the words of the acting director of the Hydrometeorological Center of Russia Dmitry Kiktev.
"The forecast of the Hydrometeorological Center - this year's harvest for cereals and grain and legumes is expected to be about 15-20% lower than last year," said Kiktev.
Kiktev also recalled that atmospheric and soil droughts were noted in the North Caucasus, in the Volga and Southern federal districts in the first half of June. According to him, heavy rainfall, which took place in the past two weeks in some areas, "was distributed unevenly, very variegated."
Nevertheless, now weather conditions for grain ripening in Russia are assessed by meteorologists as "normal" and "satisfactory". “That is, the situation is not alarming,” he added, recalling that in 2017 Russia has harvested a record harvest in its history.
According to Rosstat, 135.4 million tons of grain were harvested in 2017 - more than in the entire history of Russia.
Earlier, the head of the Ministry of Agriculture Dmitry Patrushev said that this year Russia expects a harvest of up to 100 million tons of grain due to drought in the southern regions of Russia. At the same time, according to him, grain exports from Russia this year will amount to 40-45 million tons.
“About 100 million tons - we hope that we will collect this amount of grain this year. It should be clearly understood that the forecast for the future may be changed depending on how the weather conditions will develop, "Patrushev said in early July (quoted by TASS).
The minister noted that the situation with the forecast for grain changes regularly. “There will be an opportunity to collect more, of course, we will make every effort and we will do it,” added Patrushev.
surfingbird.com
Eats rubber from the inside of the front on Fiat doblo
Problems of rubber No. 5 operation Eaten sideways or not toe-in
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Knock when turning the steering wheel - CV joint or triship
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Replacing the boot of the outer and inner CV joints (grenades) VAZ.
# 6 - Replacing the silent block in a homemade way
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Tires can be called the link between the car and the road surface. That is why the composition and design of tires has been constantly improving for many decades. According to the accepted rules, a car is allowed to participate in road traffic only if the wheels are in proper condition. Inspection of tires from all sides allows you to get information about their condition, the technical condition of the car and the peculiarities of the owner's driving style.
Why does he eat rubber is a fairly common question that can be found in various automotive forums. Indeed, some time after the detection of uneven wear, the wheels may be unsuitable for use, since severe wear significantly impairs handling, increases the braking distance, and reduces the stability of the vehicle on the road.
We carry out an inspection
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The characteristics of the vehicle determine whether the vehicle is wearing more heavily at the rear or at the front. In order to assess not only the suitability of the tires, but also to determine the absence of problems with the technical condition of the car, all 4 wheels should be inspected. 
At the same time, we note:
- In a car that has a rear drive axle, it is the rear wheels that will be more worn out, in a front-wheel drive car, on the contrary, the front ones. This is because the transmission of torque increases the frictional force between the wheel and the road.
- If, for example, Fiat Albea has disc brakes at the front and drum brakes at the rear, the front wheels will be worn to a greater extent. This is because disc brakes are more efficient. Often, strong abrasion of one or another part of the wheel occurs during braking, since at this moment there is a large load on the axle.
Driving style always determines the degree, the rate of wear. The more acceleration and deceleration during the movement, the more wear.
When examining, it should be borne in mind that the cases under consideration determine uniform wear over the entire surface. What does rubber eat unevenly? The answer is quite simple - there is a malfunction that leads to this.
It is possible to determine that the wheels are more eaten from the inner or outer side only after a fairly long period of time. This is due to the fact that only after a few hundred kilometers this will become visible without the use of special devices for measuring the size of the tread.
Wear of driven and driving wheels
An important point can be called the fact that it eats rubber from the inside and outside of the driving and steered wheels in different ways, even in the absence of a malfunction. This is due to the following points:
- At the time of turning, the steered wheels adhere to the road surface with the inner or outer side of the tire, which is associated with the features of the steering system. Therefore, Fiat Albea may have uneven wear tires. However, a similar phenomenon appears after several thousand kilometers.
- The wheels, to which the torque is transmitted, wear out to a greater extent in the middle - they eat rubber in the place where the load and friction force are concentrated.
If the steered wheels are driving, then the two phenomena add up, and uniform wear occurs. A similar phenomenon is typical for a front wheel drive vehicle. What the tires are eating unevenly in this case - the answer lies in the presence of a malfunction.
Frequent problems
When considering why Fiat Albea has tires with varying degrees of wear, it should be noted that in some cases the problem manifests itself after several hundred kilometers of distance traveled. Let's single out the following reasons for what eats rubber unevenly:
What is eating rubber - there are quite a few answers. Checking Fiat or another car follows a certain pattern to identify the problem. This is due to the fact that even a simple cause, which will take little time and effort to eliminate, can lead to significant problems.
Uneven pressure
The reason, which is the answer to the question of what eats rubber, can be called uneven pressure on the wheels mounted on one axle. In such a case, it is also possible for the vehicle to pull to one side. An example would be the case where the Fiat has one 1.5 ATM front tire and the other 2.0 ATM.
In order to check this, it is enough to visit a gas station or service station. After checking the pressure, you need to equalize it, after a while you can check whether the pressure difference is the cause of uneven wear.
The collapse of convergence
On the inside or outside, galling can occur due to improper alignment of the wheels relative to the vehicle body. In this case, after a long time, strong abrasion can occur on either side. Considering a similar problem, the following nuances should be noted:
- Camber is an indicator that is responsible for inclination along the vertical axis.
- Toe-in is an indicator that is responsible for the position of the wheel when turning.
Such indicators apply only to the front axle. What can the wheels eat up after a few kilometers of the traveled path?
If the camber settings are knocked down, cord wear occurs. At the same time, it eats up the cord in different ways, depending on how the set parameters were reset. After a few hundred kilometers, the problem can manifest itself brightly, up to the complete abrasion of the tread to the base of the cord.
Considering this issue, we note the following:
- If it eats the inside, then this indicates an excessive tilt inward. This situation is called negative camber. This situation is quite common.
- If the outer edge wears out quickly, this is a positive wear. In this case, the wheels are tilted in different directions.
After 300-500 kilometers of the distance traveled, even a new tire can become completely unusable. However, it should be borne in mind that zero camber leads to uniform but increased wear. This situation also leads to a significant increase in fuel consumption, as well as an increase in rolling resistance.
Confusion of settings takes place for the following reasons:
Checking the camber at a service station takes a little time. State-of-the-art equipment allows for quick and accurate toe check. Experienced craftsmen carry out the work of setting the desired parameters in a short time.
Not only different, but also low pressure can lead to a decrease in the service life of the purchased tire. This is due to the fact that tire manufacturers create a design taking into account the recommended operating conditions. If you operate the wheels with low pressure, it starts to wear out quickly. In this case, the load will fall on the part that is not intended for this.
A low pressure indicator determines the following:
- The structure begins to sag at the edges.
- The rim can come into contact with the tire surface, which will increase wear.
However, a lot of pressure also causes the eating to begin in the central part.
That is why you should constantly pay attention to how much pressure. It is worth inflating the wheels to the rate recommended by the manufacturer.
Manufacturing defects
There is a small chance that a defect was allowed in the manufacture and uneven wear occurs due to the irregular shape of the product. That is why you should only purchase products from trusted manufacturers.
Among the most frequently encountered problems are the incorrect composition of the rubber used, the irregular shape of the court, and other admitted defects. Unfortunately, it is practically impossible to check the quality of tires without special equipment.
Aging tires
Although rubber tends to wear out before it reaches its expiration date, there are certain periods of time. Aging rubber can cause it to wear unevenly and severely. It is also worth noting that improper storage can lead to rapid rubber aging.
All manufacturers indicate how long the product can last under certain operating conditions. It also indicates how it should be stored.
Aging of rubber leads to the fact that it loses its tightness and the structure becomes porous. After a while, moisture begins to penetrate deep into the structure. Typically, manufacturers use a metal cord to reinforce the structure. Moisture destroys the metal base. According to the accepted standards, it is impossible to use the tire after 10 years from the date of its production.
Other reasons
The above reasons can lead to severe abrasion of the surface after several hundred kilometers. However, some malfunctions can also lead to minor wear, which will manifest itself after several thousand of the distance traveled. Similar reasons include:
- Suspension malfunction. If camber is associated with the front suspension, then the eating of the rear rubber may be due to a suspension malfunction. Incorrect positioning of some elements can cause the wheels to be positioned at a certain angle. An example is a violation of the position of the struts, as well as levers and other elements that affect the position of the rim.
- Changes in body geometry after impact can also cause uneven wear. This situation can only be identified if certain equipment is available.
- The specifics of the disc you are using can also lead to the problem in question. For example, after a strong blow, the shape of the disc may be disrupted.
Types of tire wear
The above reasons can also cause wear on the inside of the tire. However, they are quite rare. The geometry of the body changes after a strong impact, suspension malfunctions leading to wheel tilt are often corrected earlier, modern rims have high strength.
Epilogue
In conclusion, we note that early detection of the problem will eliminate the problem and maintain the integrity of the tire. Timely detection of the problem is possible with a constant visit to the service station. When pumping up the wheels or carrying out diagnostics of the suspension, you should pay attention to the condition of the tread.
Car tires, like all parts in a car, have their own definite resource, as a rule, with careful use and normal quality, tires serve from 4 to 6 years. But often there is an intense premature wear of tires, as motorists say, eats rubber. Tires can be "eaten away" in different places of the tread, wheel wear occurs both on the front and on the rear axles.
It is not easy to say unequivocally why fast tire wear occurs, sometimes even experienced drivers find it difficult to find the cause. But in many cases, the "zhor" of tires speaks about the existing malfunctions in the car that need to be eliminated.
The main reasons why it eats rubber from the outside
Rubber on a car can eat up both from the outside of the tread and from the inside, the main reasons for external intense wear:
- incorrect toe adjustment (the wheels are tilted more than they should be in different directions);
- the presence of backlash in the steering rods and tips;
- factory defect of tires;
- high speed when entering corners;
- insufficient tire pressure.
As a rule, when the outer part of the tread is intensively eaten, the rubber makes an unpleasant squeak when entering corners. On many passenger cars, tires on the front axle wear out first, as the "burn" occurs when braking, and the load is mainly on the front disc brakes.
Also, a hernia may appear on the outer side wall of the rubber, which occurs as a result of a side impact, falling into a hole in the road. It should be noted that the bulge on the tire does not always appear immediately, a hernia may only appear after a week or even later. Cracks on the outside of the tire most often appear for two reasons:
- the car has been operated for a long time with low tire pressure;
- the tire has exhausted its resource, it is time to change it to a new one.
Another option is uneven wear on the outer part of the tread along the radius, a kind of bumps appear on it. The main reason for the occurrence of such a defect is a faulty suspension, first of all, broken shock absorbers are to blame for this.
Eats rubber from the inside on VAZ-2101-07 cars
On any car, first of all, the tread wears out on those wheels that are leading, therefore, on all rear-wheel drive VAZs, the rubber on the rear axle is more intensively eaten. The main reasons for the intensive wear of tires on the "Classic":
- the geometry of the body is broken (usually after a blow to the rear);
- bent "stocking" (body) of the rear axle;
- jet thrust is faulty (bent, bushings are broken);
- curved rims;
- wheel alignment is not adjusted.
Uneven wear of the tread of one of the tires on the axle can occur due to different tire pressures, for example, in one wheel 1.5 Atm, in the other - 2 Atm.
The reason for the "zhora" of tires on the front axle of the VAZ is often faulty silent blocks, here internal bushings can be displaced or broken. Also, rubber often wears out due to impact on the wheel (hitting a hole at speed), in this case the tire on the side of the axle where the damage occurred is more intensively "eaten away".
All the same problems with tread wear are observed on Niva cars, since the suspension of this model is structurally almost the same as on the VAZ-Classic.
Why eats rubber from the inside and the outside at the same time
It often happens that the rubber is "eaten away" from both sides of the tread at once, as a rule, in this case the car does not go to the side, it drives straight. If this happens, the low pressure in the wheels is most often “to blame”, when the tread pattern is worn out only in the middle - the car is constantly operated with tire pressure above normal.
Another option is that on one front wheel the inner part of the tread is "devoured", on the other - the outer one. In this case, the most common cause of the defect is the incorrect alignment of the camber, but on some auto models the camber is not regulated, for example, on Gazelle cars. On cars produced by GAZ, the camber is exhibited from the factory, and a factory defect is not excluded here. Another "culprit" of the malfunction is a worn out hub bearing, its diagnostics should be carried out with the wheel hanging.
Causes of premature tire tread wear caused by the driver
As we have already figured out, intensive wear of the tread is most often the result of malfunctions in the car, but it is not so rare that the car owner is to blame for the rapid failure of tires, and here are the main reasons:
- car operation on bad roads;
- aggressive driving style (driving with abrupt start and braking, long drive on the highway at high speed);
- irregular maintenance, untimely repairs.
If the tires wear out quickly, and there are no obvious technical problems, the driver should think about whether he is using his car correctly, maybe he should change his driving style, regularly monitor the technical condition of the car.
Why pay attention to tire wear when buying a used car
If you are buying a used car, it is important to pay attention to the condition of the tires when inspecting, they can tell a lot (of course, if the tires are not new). As mentioned earlier, uneven tire wear can mainly be caused by the following reasons:
- The tire pressure is incorrectly adjusted.
- The wheel alignment angles are incorrectly set.
- There are malfunctions in the suspension - there are backlash in the steering rods / tips, the silent blocks are worn out, the levers are bent, the shock absorbers need to be replaced, and so on.
- The rims are deformed and imbalance occurs.
- The geometry of the body is violated.
If it is quite simple to deal with the first four points, and the cause of the malfunction can be eliminated, then with a violation of the geometry, everything is more complicated, it can be violated as a result of a serious accident, and it may not be possible to fix something in this case. Therefore, before buying a car with unevenly worn tires, you should ask the real owner to diagnose the car at a service station, and only after making sure that the body is in good condition, carry out a sale and purchase transaction.
The Importance of Correct Tire Pressure
The tires are inflated with a certain pressure so that the car can drive smoothly on the roads, keeping its weight. With an incorrectly set pressure, fuel consumption increases, tires wear out ahead of time, the car is less controlled and slows down.
The statement that it is necessary to inflate the tire pressure of 2 atm on any passenger car is incorrect, for each car the manufacturer sets its own parameters, they are usually indicated on the central body pillar of the car on the driver's side, and the information can also be marked on the fuel filler flap from the inside.
When measuring with a pressure gauge, it is important to take into account that the pressure in the tires rises in warmth, therefore, the wheels need to be inflated in accordance with the season and the temperature at which the car is operated. And measurements must be made at least once every three months, and before each trip, the condition of the tires should be inspected.
Any experienced car enthusiast knows that for the normal operation of a vehicle, it is not enough just to choose the necessary tire, install it on a rim, balance it and drive without the risk of accidents and premature wear. One of the most important actions that a car must undergo is camber and toe adjustment, that is, aligning the wheels horizontally to prevent excessive abrasion of the rubber.
Many motorists who do not have sufficient driving experience often have the question of why it is eating rubber from the inside on the front axle. There are several reasons for this defect, and none of them depends on the other, in particular:
- The most common problems are wheel alignment and camber problems, and this may have nothing to do with the adjustment, because their position is unstable and it can easily change from a strong shock or vibration. In order for the driver to identify the toe and camber problem, he can simply accelerate on a straight, flat road and release the steering wheel for a few seconds. If the car pulls to the side, this is one of the signs of a violation of this adjustment.
- Also, the problem of wear on the inside of the wheels can be with insufficient pressure in them, when the middle of the sole of contact with the road bends, and the shoulder protectors, on the contrary, wear out faster.
- If a car enthusiast buys a cheap replica instead of the original tire, then there is a high probability of a defect in the manufacture of the wheel. Such an alignment, as a rule, causes uneven mass distribution, runout at speed, unnecessary vibrations and, most importantly, uneven wear of the treads.
- Some cars are designed in such a way that the wheels tilt slightly when turning, and engineers deliberately resort to this technique in order to reduce the vehicle's turning radius. In such cases, the wheel has a contact patch with the road only on one of the outsole parts, which inevitably leads to tire wear on one side.
- If the tire is used for several seasons in a row, then there is a high probability of its fatigue, due to which plastic deformations of hernias occur and, as a result, the destruction of the protectors from friction against the road surface.
If a motorist notices rubber eating up on his "iron horse", then in most cases this can be due to one or several of the above factors. Of course, there may be more reasons, for example, with a systematic overload of a car or in the case of its recovery after a serious accident with frame deformation, however, as a rule, it is the wrong wheel alignment that is to blame for the rapid tire wear.
Toe adjustment How does the wear mechanism of the leading front wheels occur?
With the onset of the above reasons, drivers begin to notice how they eat rubber from the outside in front, and the physical process that occurs in such a situation is described below:
- The contact of the tire sole does not occur evenly over the entire grip area, but only along one of its parts, and the wheel can not only roll without encountering resistance on its way, but also slip during acceleration, braking or cornering.
- The hard coating acts as an abrasive on the tread, and always causes the destruction of micron-sized layers of the outsole of the tire during every ride.
- Considering that the uneven distribution of the contact surface causes an increase in pressure per unit area, wear in this place is several times more intense due to the concentration of stress at one point, which causes the so-called galling.
With the incorrect operation of the main bolster control systems, the driver can see that he is eating the inside of the rubber on the front wheels after a few hundred kilometers. This means that vigilance is never too much, and constant monitoring of the tread height across the entire area of the tire outsole helps to identify the problem in the early stages and prevent more serious breakdowns in the car.
Wheel tilt when cornering The main reasons for rubber galling on the rear wheels
In the case when a motorist notices that he is eating rubber on the rear axle, then the reasons may be either the same as those listed above, or some other technological and operational features of the vehicle.
So, this defect most often occurs due to the following factors:
- Of course, the violation of toe and camber, as well as for the front wheels, is one of the main reasons for rubber galling.
- It rarely happens, especially in relation to domestic cars of old models, that the rear axle has dependent wheels, and it is a solid beam, it is not possible to check the position of the wheels on which it is not possible to adjust them. In such cases, the causes of the defect may lie in the non-design bends of the most massive beam due to the car hitting a deep hole at speed, and the problem will have to be corrected at the exhaust stand.
- In the course of tire fitting, craftsmen are often irresponsible by not using a torque wrench when tightening the nuts on the studs that hold the wheel to the hub. In such cases, skewing can also occur and, as a result, eats rubber from the inside of the front or rear with all the ensuing consequences.
- Unlike the front axle, for correct adjustment of the rear wheels, it is extremely important to make all control measurements with a full tank, since it is located just behind, and gasoline can weigh up to 50-70 kg. Thus, when adjusting the angle of inclination of the wheels with an empty tank during the next refueling, the car may sag and the wheels begin to eat up.
Eating rubber from the back - The last thing that is especially acute for cars with a large luggage compartment, for example, SUVs, minivans or pickups, is the problem of overloading, since drivers sometimes neglect the permissible curb weight of the car, the excess of which is often reflected in the state of the suspension and, as a result, affects wheel convergence ...
Why does the rubber eat up from the inside of the wheel at the back? Despite the fact that drivers often complain when they eat rubber from the outside on the front axle, the rear axle is considered much more problematic in terms of its maintainability and the ability to adjust without significant costs.
The main mistakes when adjusting the front wheels
Many experienced car enthusiasts have faced such a problem when, after the next scheduled maintenance, the inside of the front wheel suddenly begins to wear off. This is primarily due to the violation of technology during the adjustment of toe and camber, since this procedure must be carried out at a special stand with the use of appropriate equipment and professionally trained craftsmen. If the procedure is carried out with violations, then there is a result called critical adjustments, which is expressed in the following criteria:
- Regardless of the class of the car, when adjusting the camber, it is advisable to maintain a negative angle for the front axle, because the mechanism for turning the constant load from the engine balances them in this position.
- When setting the correct toe angle, that is, positioning the wheels in relation to the horizontal surface, it is necessary, on the contrary, to assign only positive values to the value in order to achieve ideal balance while driving at high speed. It is such an adjustment that can ensure that the grip patch, if the wheel is not over-pumped in relation to the standard values, will fall on the entire area of the wheel sole, which in turn will provide ideal traction and transfer of all torque to the tire without any losses.
Adjusting the caster angle - The last important indicator that many tire fitters neglect at all is the caster. This parameter is an angular value that characterizes the inclination of the projection of the vertical plane across the wheel in relation to the perpendicular, which is lowered from the point of attachment of the disk to the hub strictly vertically. The importance of correct positioning of this parameter is obvious, since the automatic return of the steering wheel to its original position is possible only if the correct adjustment is ensured.
- Accordingly, a correctly positioned steering rod can guarantee that the wheels will be aligned strictly coaxial to the trajectory of movement, and during driving, the effect of their partial skid will not be created, which is inevitably accompanied by the erasure of a part of the protectors.
For summer tires, the critical adjustment is not so obvious due to the increased rigidity of the treads and the work of the wheel, mainly along the entire sole of its support on the ground. In the case of winter tires, this parameter often has a decisive effect due to the fact that soft protectors wear out much faster and in themselves have a greater depth.
So, after 10,000 km of run, after incorrect adjustment of toe and camber, the tires may have a difference in tread height on the central and inner parts of up to 5-6 mm, which indicates the need to replace them, since such a defect cannot be restored even after alignment of wheels.
Correct adjustment of toe and camber at service stations If the driver notices one-sided wear on the outsole of his tire, this should signal him to contact the tire service in the near future. Otherwise, galling up of rubber can lead to more serious consequences, up to the formation of a hernia, or a sudden rupture of a wheel, which can pose a danger to the driver or his passengers, as the car loses control.
