Is it necessary to do a 4 wheel alignment if the car has four new tires?

Is it necessary to do a 4 wheel alignment if the car has four new tires?

The temperature in summer is high, and the risk of tire blowout increases a lot. Most car owners will pay more attention to tire safety in this season, and are more willing to replace tires with safety hazards.

At this time, some car owners may ask: Is it necessary to do four-wheel alignment after replacing four new tires?

The answer is, not necessarily. Because there is no necessary connection between replacing new tires and doing four-wheel alignment! The fact that this question can be asked shows that the car owner does not know what four-wheel alignment is.

The four-wheel alignment mainly "determines" the chassis data, that is, the suspension data connected to the four tires. If there is no problem with the suspension data of the four wheels, there is no need to do four-wheel alignment when changing four new tires. Of course, some tire shop owners will say this to car owners: Change four new tires and do four-wheel alignment for free.

This makes many car owners excited. After changing the new tires, they watch the boss drive the car to the four-wheel alignment instrument, install the equipment, check the data, and operate under the car with a wrench. In fact, this is a marketing method and a psychological hint to the car owner. In many cases, if the car shows no problems, the chassis does not need a four-wheel alignment at all.

The left side of the tread is worn to the limit (typical of eccentric wear of tires)

The reason for eccentric wear of tires is: there is a problem with the suspension data connected to the tires. In this case, after replacing the new tires, four-wheel alignment must be performed, otherwise the new tires will also wear eccentrically.

In what other situations do you need to do four-wheel alignment? The maintenance master introduced that when the vehicle has problems such as driving deviation, the steering wheel is not straight, the steering wheel does not automatically return to its position after turning, and suspension maintenance, the vehicle must be four-wheel aligned.

Data displayed by four-wheel alignment

The above are some common sense about four-wheel alignment of cars. Some car owners may still not be able to distinguish the difference between tire dynamic balance and four-wheel alignment. Next, let's talk about the common sense of tire dynamic balance.

Tire dynamic balance is the data after the tire and the rim are combined. As long as the tire is separated from the rim and then installed, the tire dynamic balance must be done. Otherwise, the wheel will jump when it rotates at high speed, and the performance in the car is steering wheel shaking.

Tire dynamic balancing machine

The operation method of tire dynamic balancing is: fix the wheel on the dynamic balancing machine, set the wheel data, let the machine drive the tire to run at high speed, the dynamic balancing data will be displayed on the instrument, and then according to the displayed data, stick the corresponding weight balance block at the specified position of the inner and outer rings of the wheel rim, and then let the machine drive the tire to rotate until the data shows normal.