【The owner's family car knowledge】Is it necessary to replace the repaired tires? The first reaction is that it is necessary, but the repair shop's master said that minor damage is not important and can not be replaced. That being said, does the repaired tire need to be replaced, and under what circumstances must it be replaced? Let’s discuss this issue below.
● If the tread is damaged and does not need to be replaced
Tread damage depends on the situation to determine whether to change the tire. If the damage is serious, there is no need to repair it, just replace it. If the damage is light, you can continue to use it with a simple repair. Here are two situations that can be repaired:
1. The tread nail hole is less than 6mm
A colleague recently bought a new car because he quarreled with others while parking. He suspected that it would invite revenge. The left front wheel's tread was nailed into four nails of a few centimeters. He later went to the suburbs to find out that there was an accident. Fortunately, I am not running high speed. Later, he went to the repair shop to repair the damaged tires. He was worried that the
【The owner's family car knowledge】Is it necessary to replace the repaired tires? The first reaction is that it is necessary, but the repair shop's master said that minor damage is not important and can not be replaced. That being said, does the repaired tire need to be replaced, and under what circumstances must it be replaced? Let’s discuss this issue below.
● If the tread is damaged and does not need to be replaced
Tread damage depends on the situation to determine whether to change the tire. If the damage is serious, there is no need to repair it, just replace it. If the damage is light, you can continue to use it with a simple repair. Here are two situations that can be repaired:
1. The tread nail hole is less than 6mm
A colleague recently bought a new car because he quarreled with others while parking. He suspected that it would invite revenge. The left front wheel's tread was nailed into four nails of a few centimeters. He later went to the suburbs to find out that there was an accident. Fortunately, I am not running high speed. Later, he went to the repair shop to repair the damaged tires. He was worried that the repaired tires had safety problems. Moreover, the repair shop's master said that foreign glue was not used when repairing the tires, and he couldn't let it go.
His situation seems to be serious, but after careful analysis, he found that he only needs a replacement tire, and he can continue to use it without replacing it. Because the iron nails inserted into the tire will not damage the structure of the tire to a large extent, the steel wire, cord and polyester layer only pass through four holes, and the repair is complete. Of course, it is safer to replace it and use the injured tire as a spare tire.
Tyre experts told us that if the tread is nailed or punctured by other objects, it can be repaired if the diameter is smaller than 6mm, and it must be replaced if the diameter is larger than 6mm. Because the diameter of the iron nail is not large, but the injury is relatively deep, the owners of the tires that have been nailed by the iron should check the condition of the injured tire before running at high speed or walking long distances before they can go on the road.
2. The tread is slightly damaged
Slightly cracked treads can also be repaired. The domestic road conditions are more complicated, with uneven road surfaces and more accumulations on the road surface. It is more common for tire treads to be damaged. If the tread is slightly damaged, it can be repaired to extend the life of the tire. It is useless to repair the pattern if it is peeling off, and it can be used if it is not severely reluctant; but if it is running at a high speed or if the owner has the conditions, it is recommended to replace it to ensure the safety of driving.
● The sidewall damage does not need to be replaced
Although the structure of the sidewall is not as complicated as that of the tread, there are some cases where the sidewall does not need to be replaced and only needs to be repaired.
1. Slight damage
Recently, a friend drove a car at night when it was dark and windy and pressed the wheel to the side of the road. As a result, there was a nearly 1cm-wide scar in the center of the sidewall, but there was no cord fabric layer, just some rubber. There is no need to change tires. Still the same sentence, usually pay more attention, especially before you plan to run high-speed and long distances, check for air leaks, and see if the tire damage has worsened.
2. The sidewall nail hole is less than 6mm
Insert nails on the sidewall, as long as there is no damage to the cord of the ply, the repaired tire can still be used. The sidewall cords are longitudinally distributed. As long as the cords are not broken by nails or other hard objects, they are inserted between the two cords, but the rubber is inserted. The damage to the carcass is very small, and it can be repaired simply. .
● The situation cannot be repaired and must be replaced
If the tire tread or sidewall is severely damaged, it means that the tire can no longer be used and must be replaced to ensure safe driving.
1. Tread deformation / serious damage to the carcass
In the case of tread deformation or serious carcass loss, new tires must be replaced. The deformation of the tread is actually affected by the carcass. When the carcass is subjected to a large force, its internal structure is damaged, which finally causes deformation, and the tread also deforms. At this time, the life of the tire has been declared to end. NS.
2. The tread is severely damaged
I have seen on the Internet that the tread of some tires touched sharp objects, the pattern was severely peeled off or the carcass was split. When the hole diameter of the pierced tread exceeds 6mm, it is meaningless to repair it. The punctured tires must be replaced to ensure driving safety.
3. Drum kit
The bulge on the sidewall is the result of the breakage of the cord of the ply. This situation indicates that the tire has been lost, and there is no value in repairing it. The tire must be replaced. If reluctantly repaired, the repaired tire can only be a dangerous product that will blow out at any time.
4. Severe sidewall injury
Whether the outer rubber on the sidewall is completely cracked, the inner liner, ply, protective layer and other structures of the tire have been completely destroyed, and the tire can only be scrapped. When a tire is broken by an iron nail, if it can be stopped and repaired in time, the owner still insists on driving, and the inner side of the tire is crushed by the wheel, causing serious damage, and it must be replaced with a new tire.
● Summary:
The tire is the part of the car in direct contact with the ground, and its performance is directly related to the safety of the drivers and passengers. The tires are slightly damaged, and you can continue to use them with simple repairs. You can pay more attention before driving. If you can repair them, you don't need to replace them. If the damage is serious, you must replace them with new tires.
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