Tire pressure VAZ 2107: what it depends on and what it affects
Content
One of the elements of the VAZ 2107 that ensures safe movement are car tires. The condition of the wheels is determined not only by their appearance (by tread depth, balancing, surface integrity), but also by the air pressure in them. Compliance with this parameter allows you to extend the life of not only tires, but also other elements of the car.
Tire pressure VAZ 2107
The tire pressure of the VAZ 2107 is an important parameter that should be periodically monitored and adjusted to normal when necessary. Each car has its own values. When and what should be the pressure on the "seven" and what does it affect? These and other points should be examined in more detail.
Why is it important to check tire pressure?
A responsible car owner constantly monitors the condition and operation of his "iron horse", checking the functioning of its systems. If you operate a car and do not pay due attention to it, then over time, even a minor malfunction can lead to serious repairs. One of the parameters that cannot be ignored is tire pressure. The values of this indicator are set by the car manufacturer, so you need to adhere to the recommended figures and try to avoid deviations from the norm.
It is important to understand that excess pressure, as well as insufficient pressure, can have a negative impact not only on fuel consumption and rubber wear, but also on other vehicle components. It is recommended to check the pressure at least once a week and this should be done using a special device - a pressure gauge, and not by any other means, for example, by tapping the wheel with your foot. The pressure gauge in the car should always be among the list of necessary tools and equipment, regardless of whether you own a Zhiguli or any other car.
If the pressure differs from the norm even by a few units, you will have to bring the indicator to normal. If the pressure does not match and there is no pressure gauge, you should not move at a speed of more than 50 km / h, since the control of the machine largely depends on the wheels and the state in which they are located (pressure, balancing, disk condition). It is especially important to monitor the pressure in winter, when the likelihood of skidding increases dramatically. Low pressure can lead not only to skidding, but also to an accident.
More about the accident: https://bumper.guru/dtp/chto-takoe-dtp.html
Tread wear due to incorrect pressure
During the operation of the VAZ 2107, natural tire wear occurs as a result of rubber friction on the road surface. However, wear may be uneven, i.e. not over the entire surface of the tread, but in some part of it, which indicates incorrect pressure or suspension problems. If timely attention is not paid to uneven tire wear and the cause is not eliminated, then the tire may prematurely become unusable.
At low pressure
When the tread of the wheels of your "seven" wears out at the edges, and the central part does not have visible traces of abrasion, this indicates low tire pressure during vehicle operation. If the wheel is not sufficiently inflated, then its inner part does not fit snugly against the roadway. As a result, premature wear of rubber occurs on both sides (internal and external), as well as increased fuel consumption and braking distance, and handling deteriorates. The increase in fuel consumption is due to the fact that flat tires have a large area of contact between the tire and the road surface and it is harder for the engine to turn them.
It is believed that driving a vehicle with low tire pressure is dangerous, not only for the driver, but also for other road users. This is due to the fact that under-inflated wheels lead to a deterioration in the controllability of the car, since on such tires the vehicle can independently change the trajectory of movement. In other words, the car will pull to the side.
If the pressure in the wheels is controlled and maintained at the desired level, but at the same time wear is observed at the edges of the tires, it is worth investigating whether the pressure indicator is chosen correctly for your car. Low tire pressure in the VAZ 2107, in addition to the problems listed above, is reflected in the form of an increase in the load on the gearbox, which leads to a decrease in the resource of the unit. In addition, flat tires do not hold well on the rim, which can lead to its disassembly during sudden acceleration or braking. It should also be taken into account the fact that at lower pressure, tires lose their elasticity.
Read when you need to change tires for summer: https://bumper.guru/klassicheskie-modeli-vaz/poleznoe/kogda-menyat-rezinu-na-letnyuyu-2019.html
At high pressure
Increased tire pressure reduces the contact patch with the road surface and reduces tire deformation. As a result, tire wear increases. If the pressure is significantly higher than normal, the tension of the carcass cords also increases, which can lead to carcass rupture. High pressure wears the tire in the middle part of the tread. Some car owners are of the opinion that operating a car on overinflated tires helps to reduce fuel consumption. If you look, this is true, since the contact of the tire with the road surface is reduced, but the grip of the tire with the road surface is lost. Such savings will lead to the need for more frequent replacement of automobile rubber as a result of its rapid wear.
High air pressure in a tire makes it stiffer, thereby reducing the damping properties, which leads to faster wear of vehicle parts and a decrease in comfort level. At the moment the wheel hits an obstacle, the stress acting on the carcass cord threads sharply increases. From excessive pressure and under the influence of impact tires quickly become unusable. In simple words, they are torn.
If the vehicle has been observed to move with increased rigidity, one of the likely causes is too high tire pressure. If the parameter in the wheel is exceeded by 10%, the service life of the tire is reduced by 5%.
Suspension wear due to increased tire pressure
The tire pressure of the VAZ 2107, which is different from the norm, carries only negative points. However, it is the excess of the indicator that negatively affects the life of the suspension elements. Since one of the purposes of tires is to absorb small bumps in the road surface, vibrations will not be absorbed when pumping the wheels: the rubber in this case becomes too hard. With increased pressure in the wheels, road irregularities will be transmitted directly to the suspension elements.
Involuntarily, the following conclusion arises: an overinflated tire leads not only to wear of the tire itself, but also to the rapid failure of suspension elements, such as shock absorbers, ball joints. This once again confirms the need for periodic monitoring of tire pressure and bringing the indicator to normal. Otherwise, it will be necessary to replace not only tires, but also individual elements of the chassis of the car, which will entail financial costs.
Learn about the repair of the VAZ-2101 front suspension: https://bumper.guru/klassicheskie-modeli-vaz/hodovaya-chast/perednyaya-podveska-vaz-2101.html
Video: tire pressure recommendations
Checking tire pressure VAZ 2107
To check the degree of inflation of the VAZ 2107 tires, the air temperature inside the wheel must be equal to the ambient temperature, that is, the pressure measurement immediately after the trip is considered incorrect. This is due to the fact that during the movement the tires heat up and after the trip some time must pass for the tires to cool down. If in winter the tires practically do not heat up, then in summer the pressure can vary widely, which is due to the ingress of sunlight, heating of the rubber during dynamic driving.
To check the pressure in the wheels of the "seven" you will need a pressure gauge or a special compressor for inflating tires. The verification procedure is reduced to the following steps:
- We install the car on a flat surface.
- Unscrew the protective cap from the wheel valve.
To check the tire pressure, you will need to unscrew the protective cap from the wheel valve. - We connect a compressor or pressure gauge to the valve and check the pressure readings.To check tire pressure, you will need to connect a car compressor or use a pressure gauge
- If the parameter in the VAZ 2107 tires differs from the norm, then we bring it to the desired value by pumping or bleeding excess air by pressing on the spool, for example, with a screwdriver.If the tire pressure does not correspond to the norm, it is brought to the desired value by inflating or bleeding air
- We twist the protective cap and check the pressure in all other wheels of the car in the same way.
It is important to note that when using a pump with a pressure gauge, the pressure displayed by the gauge corresponds to the pressure in the air supply, and not in the tire. Therefore, in order to obtain correct readings, the inflation process must be interrupted. A separate pressure gauge can also be used for this purpose.
Seasonal change in tire pressure
As the ambient temperature changes, the pressure in the car tires also changes, which is due to the heating or cooling of the air inside the wheels.
tire pressure in summer
First of all, you need to take into account that regardless of the time of year, the tire pressure of the VAZ 2107 should remain unchanged. In summer, it is recommended to check the pressure more often than in winter, especially when traveling on the highway at high speed (every 300–400 km). The fact is that in hot weather there is a strong heating of tires under the influence of the sun, maneuvers, high-speed driving. All these factors lead to an increase in pressure inside the wheels. If this parameter is significantly higher than the norm, then the tire may explode. To properly check the pressure in the summer, it is necessary to wait for the rubber to cool completely, and it cools slowly. On long trips, you usually have to lower the wheels, and not pump them up.
tire pressure in winter
With the advent of cold weather, the pressure in automobile rubber noticeably decreases. If at a temperature of + 20˚С this indicator was 2 bar, then at 0˚С the pressure will drop to 1,8 bar. It should be borne in mind that this parameter should be checked and brought to normal under the conditions in which the car is operated. If in winter the car is stored in a warm garage or box, then the pressure must be increased by an average of 0,2 bar in order to compensate for the temperature difference.
Since softer tires (winter) are installed on the car in winter, pressure should not be reduced, because a small value of the parameter will lead to rapid wear and tire failure. In addition, the likelihood that the wheels may burst on the road increases. Among motorists there is an opinion that on a slippery road it is necessary to reduce the pressure in the tires to increase the grip properties of the wheels. However, if you look at it, then such a judgment is fundamentally wrong. This is explained by the fact that with a decrease in pressure, the area of \uXNUMXb\uXNUMXbthe contact patch with the roadway increases, as a result of which the grip characteristics of tires on a slippery road deteriorate.
It is also not recommended to underestimate the pressure in winter, for the reason that when hitting any unevenness, the chances of damaging the rims increase, since the tires will not be able to provide sufficient rigidity due to the loss of their shock-absorbing properties.
Video: how to check tire pressure
Table: tire pressure VAZ 2107 depending on size and time of year
| Wheel dimension | Tire pressure in summer (kgf/cm²) | Tire pressure in winter (kgf/cm²) | ||
| Front axle | Rear axle | Front axle | Rear axle | |
| 165 / 80R13 | 1,6 | 1,9 | 1,7 | 2,1 |
| 175 / 70R13 | 1,7 | 2,0 | 1,7 | 2,2 |
The table shows data for a car that is stored in a warm garage. Therefore, there is a difference between the readings of summer and winter pressure by 0,1–0,2 atmospheres, which makes it possible to compensate for the temperature difference between indoors and outdoors.
The pressure in car tires depends both on the car itself and on the type of tires. This parameter is factory set and these values should be adhered to. In this way, you will be able to avoid possible troubles and protect yourself and other road users.
