These days, I have a friend who is just experiencing a problem, the right rear wheel of his car filled with gas after only a few weeks then deflated some. Due to slower than the gas leak, the owner also did not bother to check later discovered that the tires were slashed even a screw - do not let the tire repair leaking dark, then sooner or later will become a serious safety hazard. The most direct is a direct scrap tires. In fact, the main reason for the tire dark leak more than the following:

 

● foreign body headlong into the tire

 

Bar to the foreign body is the most common injuries tire. Foreign body headlong into the tire easily, including nails, screws, wire, glass fragments, sharp stones son, tiles and so on. Among these foreign bodies, nails and screws easiest tire punctured, causing the tire dark leakage, but also inserted in the tire breakage, not cleared up, it may exacerbate the degree of damage to the damaged area of the tire.

 

Inspection methods:

 

Tire tie to foreign matter, as long as we carefully observe the tire surface can be found. If the foreign body more subtle tie to the site, we can ever tire surface watering, to find out where there are air bubbles, sometimes even hear the "hissing" sound discouraged.

 

● along the inner side of the tire and damaged

 

In addition to the front tires easily be a hard object "plot", the side of the tire and the inner edge is the weak link. Some owners feel bad location, often let the tires rub the side of the curb, over time will wear side of the tire; tire damage along, it is due to the dismantling of the tire on the wheel hub operator error caused this situation occurs in basic installation of new tires or tire tire installation link. And along the inner side of the tire is damaged, can cause dark tire leak, there will be a high risk of puncture.

 

Inspection methods:

 

Side of the tire out the extent of damage can be directly observed, and in severe cracking and drum kits, as long as they are found, a new tire must be replaced as soon as possible, so as not to puncture the unexpected. This is generally not recommended tire, and generally can be directly change the tire, and relatively safe or more important, more harm than good if a puncture.

 

● tire valve damage

 

If no abnormalities were found on the tire, then we can turn our attention to the valve stem. Basically equipped family car vacuum tire, the valve is mounted on wheels, its material is rubber. Rubber material of the valve in use for some time in the sun and rain and the air pressure inside the tire under attack, will gradually aging, texture gradually harden, eventually cracking leak.

 

Inspection method: check valve, in addition to the surface to see if there is a crack, you can also touch the valve rubber, feel its softness. Given the aging of rubber valve rupture easily, then the owner may wish to try to replace the metal valve. While buying a money metal valve rubber valve can be bought a few, but more durable metal valve will make people more at ease and more peace of mind.

 

● hub flange distortion

 

Automobile tires filled with air, the outer edge of the tire and wheel flange will fit closely to prevent gas leakage inside the tire. If the hub flange being collision deformation, it will affect their adaptation and the outer edge of the tire, causing the tire dark leakage.

 

Inspection methods: If the hub flange severely deformed, we can find with the naked eye; if the hub flange deformation is not obvious, you need to first remove the wheel, and then to connect the tire and wheel parts watering bubbles place, is the hub deformation resulting dark leakage site.

 

● Wheel rupture

 

The reason for this dark drain placed in the last one, because this is relatively rare. Wheel rupture can cause gas leaks from inside the vacuum tire cracks, small cracks will become a hub fracture risk. We can say that this case is a rare, but very high degree of risk. Holes are generally caused by trachoma or discouraged, if rupture occurs quite dangerous.

 

Inspection Method: If you do not find the four before dark and leakage, then we will check the wheels. Check the need to remove the front wheel, and then look at the hub and the inner wall surface cracks exist. Unfortunately, if the hub cracks, do not expect to be able to repair the good, and quickly replaced with new wheels considered insurance.

 

Summary: Tire dark leakage is a very annoying problem, no owner is willing to help the tire bursts. The owner of the car during the day, we should always pay attention to the situation observed wheels might appear dark and leakage when the self-test, to be able to remedy as soon as possible after the repair shop to repair, but also to avoid exaggerating the problem of unscrupulous store money pit.