What s the deal with a flat car tire?

1. Pierced by a foreign object such as a nail.

Punctured tires are the most common injuries, including screws, nails, wires, glass shards, etc. These sharp objects, if the puncture wound is small, will cause the tire to leak. If it penetrates the tire and inserts it into the damaged area, the owner does not notice it, and it may increase the damaged area of the tire over time.

Check the method. As long as we observe carefully, we can find the foreign objects on the surface of the tire, if the hidden is deeper, we can sprinkle some water on the surface of the tire, and there will be blistering and even deflating sound in the damaged area.

2. The side of the tire is damaged.

If the owner does not pay attention when parking, the tire may rub against the road teeth, and the number of rubs will cause damage to the side of the tire and form a dark leak. It can also cause the tire to bulge, increasing the chance of a puncture.

Check the method. If the side of the tire is damaged, it can be seen directly, and if there is damage or bulge, be sure to replace the tire with a new one as soon as possible.

3. The valve is aging.

Generally, the original valve of the vehicle is rubber products, and the rubber products have a service life, and the valve may harden and crack after a long time, resulting in tire leakage.

Check the method. Check the valve of the tire one by one, if the surface cracks and hardens, it is best to replace it, and replace it with a metal valve, which will be more reliable.

4. The wheel hub is deformed.

Nowadays, in order to prevent air leakage, the wheel hub and tire are tightly fitted. If the wheel hub is deformed, it will affect the compact shape that fits the tire and cause the tire to leak.

Check the method. If the tire is badly deformed, we can see it by rubbing our eyes. If it is not imaged, you need to remove the tire and sprinkle water at the connection between the tire and the wheel.

5. Wheel cracks.

Cracks in the wheel can also cause leakage in the tire, and the crack may also expand, eventually causing the wheel to break. What is the danger of this, the brain makes up, the vehicle is driving at high speed, and suddenly the wheel hub breaks, how tragic the consequences will be.

Check the method. The tires need to be removed and then carefully ** the surface and inner wall of the hub for cracks. If there is a crack, it is better to replace it, and don't trust those wheel repairs.

I believe that many car owners will encounter this situation: the tires were inflated only a few days ago, and they became deflated ...... a few days laterThe problem of this kind of tire running slowly is really worrying. So, what are the possible reasons for the frequent lack of air in tires?

Broken sides and inner edges of the tire.

Damaged side of the tire: Some car owners have a poor sense of position, and often let the side of the tire rub against the curb when parking, which will wear out the side of the tire over time.

Damage to the inner edge of the tire: The damage to the inner edge of the tire is mostly caused by the operation error when disassembling and assembling the tire, which generally occurs in the process of installing the tire after replacing the new tire or repairing the tire.

Broken sides and inner edges of tires can cause tire leaks and a high risk of punctures.

Inspection method F: The damage to the side of the tire can be directly observed, and cracking and bulging will occur in serious cases, as long as there is such a situation, you must replace the new tire as soon as possible to avoid the accident of puncture.

Whether the inner edge of the tire is damaged or not needs to be disassembled before it can be checked, so the owner should carefully supervise when disassembling and assembling the tire in the repair shop.

Foreign objects penetrate the tires.

A foreign body is the most common injury to a tire. Foreign objects that can easily penetrate tires, including nails, screws, wires, glass shards, sharp stones, etc.

Among these foreign objects, nails and screws are the most likely to puncture tires, causing tire leaks.

Inspection method F: If the tire is punctured with a foreign object, we can see it by carefully observing the surface of the tire. If the area where the foreign object has been pierced is more hidden, we can also sprinkle soapy water on the surface of the tire to find the place where the bubbles are coming out.

The hub is cracked. Cracked wheels are rare. A broken wheel will cause the gas inside the tubeless to leak from the crack, and small cracks will also become a hidden danger of wheel breakage. It can be said that although this situation is rare, the level of danger is extremely high.

Inspection method: During the inspection, the wheel needs to be removed, and then observe whether there are cracks on the surface and inner wall of the wheel hub. If there is a crack in the wheel, it should be replaced in time.

1. Soak the tire in water, find the leakage point and repair it;

2. Foreign objects penetrate the tire. When a sharp object is pierced, the sharp object cannot be removed, and the spare tire can be replaced;

3. There is no spare tire, and the tire is repaired at a nearby auto repair shop at low speed;

4. If the valve core is leaking, replace the air core or valve.

Daily tire maintenance methods: 1Regularly clean up the crevices of tires for foreign objects or stones;

2. Reduce tire exposure;

3. Detect the tire pressure in time;

4. Regularly check the front wheel alignment;

5. Pay attention to the driving mode, try to choose a flat road surface to drive on the road, avoid objects that can puncture and scratch the tires, and avoid the corrosion of tires by chemical residues.

1. The tires themselves will leak.

The main reason is that the tire and the wheel hub cannot be completely sealed, and the relationship between the thermal expansion and cold contraction is also bumpy, and the gap between the wheel and the tire will leak very slowly.

2. Leave it for a long time.

The sliding cavity tire of the car in motion is stressed on multiple sides, while the tire of the parked car is stressed on one side, and it is always basically one surface in contact with the ground, resulting in the pressure not being dispersed and leaking. If you don't open it for a long time, the tires and rims will solidify and slowly leak.

3. The tire is damaged due to external reasons.

A foreign object is the most common injury to a tire. Foreign objects that can easily get into tires include nails, wires, glass, etc. Of these foreign objects, nails and screws are the most likely to puncture tires, causing tire leaks, and if they are not cleaned up unnecessarily, they may exacerbate tire breakage.

There are also tires rubbing against the road teeth, and the side or inner edge of the worn tires is damaged, which will basically cause tire leakage.

4. Defective repair.

The repair of the shirt was not carried out during the tire change, resulting in a flat tire.

5. There is a question about the tire valve.

It may be that the valve is not reset after testing the air pressure, or it may be that the tire valve is always shouting to be recalled. Because the tire valve is mostly made of rubber, after a period of use, under the influence of sun and rain and the air pressure in the tire, it will slowly age, the texture will gradually harden, and finally crack and leak.

Hope mine, helped.

Then there is also Huai Shi, one is the tire about the tire leakage, you have to understand what the specific reason is the container, and the other is to say that through the tire pressure of our tires for a few days, we have to see if there is a leak in Huiming's hands, and that kind of situation is generally a valve core valve leak.

There are several common causes of a flat tire:1. The tires themselves can go flat.

The main reason is that the tire and the wheel hub cannot be completely sealed, affected by thermal expansion and cold contraction, as well as the impact of bumps in use, the gap between the wheel and the tire will leak very slowly. 2.Keep it up for a long time.

The tires of the car in motion are stressed on many sides, and the tires of the parked car are stressed on one side and always in contact with the ground on the other side, resulting in pressure that cannot be dispersed and air leakage. If you don't open it for a long time, the tires and rims will solidify and slowly leak. 3.

The tires are damaged due to external causes. Prick foreign bodies are the most common injuries to tires. Foreign objects that can easily penetrate tires include nails, wires, glass, etc.

Of these foreign objects, nails and wires are the most likely to puncture tires, causing them to leak and can worsen the damage to tires if not cleaned up in time. There is also the friction between the tire and the curb, and the sidewall wear or the inner edge is broken, which can cause the tire to go flat. 4.

Poor repair. When changing a tire, the repair work is not done well, resulting in a puncture. 5.

There is a problem with the tire valve. It may be that the valve does not return after checking the air pressure, or it may be that the tire valve is aging. Because the material of the tire valve is mostly rubber, after a period of use, under the invasion of sun and rain and the air pressure in the tire, it will gradually age, the texture will gradually harden, and eventually crack and leak.

This is caused by the lack of air pressure in the tires, first vent the gas in the inner tube, then check whether there are other debris in the tires, and then use a pry board or crowbar to pry the tires back to the hub little by little.

If it is a vacuum tire, it is a bit difficult to do, because the vacuum tire has no inner tube, it must be an air pump to flush the air, and if there is no air pump, you need to find a professional, or remove the wheel to cover the infusion to flush.

Cause analysis

When the pierced object is particularly large, the hole in the tread piercing is big, and the gas is directly sprinkled. Some car owners have found that they are ready to push up to repair the slag and not make up for it, and when they turn the corner, the sidewall is twisted, and the tire is directly pinned to the outside of the rim, and the tire pressure itself is insufficient, and then drag a person to bear too much pressure.

When the vehicle turns at high speed, the tires twist, the tire side and the motor ring side will crack a seam, such as a combination of gas, especially some young people, usually when there is a curb stone platform or a deep pit shock absorber wood, they do not slow down, directly through the high-speed steel rim edge directly knock deformation; The gap between the sidewall and the deformed tile rim is too large, and there is no air on the spot, and it is very heavy to push and walk.

Flat tires are a problem that all car owners may encounter, so what to do about a flat tire? Situations need to be treated on a case-by-case basis. Let's talk about the cause of a flat tire.

Causes of flat tires.

1.A half-air leak is when there is a significant lack of tire pressure, but there is no light leakage. Specifically, when the tire is inflated under the bar, the tire pressure decreases to Yoba.

1.Basically, sharp objects like nails stick to the tread of the tire. As long as it is repaired in time, the tire can still be used normally. When checking your tires, check your tire pressure.

Then spray soapy water on the tread, and you can see the initial puncture of the tire, which is convenient for locating the air leak.

The second is the air leak type, that is, the whole tire is completely deflated, and the tire is completely deflated.

1.It could be that the tire has a large hole in the sidewall or tread. The tires are mostly scrapped and are unlikely to be repaired.

2.It could also be that the valve is broken or the spool is broken. As long as the tires do not roll and the tires are still intact, you can replace them with new valves or valve cores. If the tire bursts, the tire is basically scrapped.

Third, chronic air leakage type. That is, the tire is slowly flat. After a week of driving, the tire pressure may only drop.

1.It may be that the valve core is leaking from the state. As long as Yunpai applies some soapy water to the valve core, it can be checked out and replaced with the valve core.

2.There is also a chance of air leakage at the junction between the hub and the tire. When checking, keep the tire pressure at normal tire pressure (left and right, the tire pressure should not be too high, too high will make the pressure between the tire and the hub tighter, and it cannot be checked).

Apply soapy water to the joint between the hub and the tire. If there is an air leak, small bubbles can be clearly seen coming out.

The basic reason: there is a foreign object between the steel rim of the wheel hub and the tire, or the aging of the aluminum alloy wheel (this problem should be paid attention to in cars more than 4 years), the paint on the wheel hub falls off, so that a layer of dry and hard paint between the wheel and the tire falls off, resulting in air leakage.

Solution: Peel off the wheel hub from the tire, remove foreign matter, and polish the joint between the inner side of the aluminum alloy steel ring and the tire with a sand skin.

3.If the above tests are normal, there is also a possibility that the tire has been punctured by a nail or other sharp object (the puncture is not deep or thin, which may cause a slow air leak). If you want to check it, be sure to hit the tire pressure, spray soapy water to find the puncture, and then you can repair it.