Generally speaking, the hub of the Pacific car network is deformed, which is caused by the impact of a strong external force when driving carelessly. Although the merchant has the means to repair the deformed wheel hub, it is not recommended for the owner to repair it himself. If it is repaired, some hidden injuries will be invisible. Don't bury potential safety hazards. It is recommended to replace it with a new one.

Let's see how the deformation is corrected first.

The first step is to detect the deformation position and find the deformation position of the hub. The master installed the wheel hub on the self-made fixture, and used the dial indicator to find the deformation position for calibration.

Step 2, heating: locally heat the deformed position with a blowtorch. The little red dot on the wheel hub is an infrared thermometer, which can stop heating when it reaches a certain temperature.

Step 3, correction: after reaching a certain temperature, the hub becomes soft, and the small hydraulic jack is used for repeated slight correction. Finally, reach a reasonable standard.

The whole process seems to have no problem, but the problem has already appeared!

As many people know, the wheel hub is made of aluminum alloy, and its metal has poor fatigue resistance. After being deformed by external force, it is forcibly restored to its original state by external force. Even if there are tiny cracks on the surface, from a scientific point of view, the metal structure here is completely different from the normal hub.

What followed was an unpredictable fatigue crack somewhere, and then a terrible fracture. Therefore, if you find that the hub is deformed, don't think about repairing it. Replacing the wheel hub with a new one is the only way.

(Photo/Text/Photo: Pacific Auto Network Q&A called Beast)