Inner Tire Wear Explained for Those With Auto Mechanic Training

Whenever there’s a sign of tires wearing out, this may spell eventual trouble for the driver and for passengers. Tire wear at the front end of a vehicle is the unfortunate byproduct of many possible underlying causes. This can include tire feathering, cupping/scalloping, fatigued springs, and improper inflation. Not addressing the situation can cause the tires to fail, which is incredibly dangerous for the driver.

The causes listed below are ones any auto mechanic should become familiar with in order to properly diagnose the cause of uneven tire wear, especially if a client hasn’t frequently inspected it themselves. Here’s why inner tire wear happens, and what can trigger it.

What Inner Tire Wear Is, and Why It’s a Problem

As professional auto mechanics might already know, inner tire wear is perhaps the most frequent tire wear issue seen by pros. This problem happens whenever any parts of the suspension, such as the angles, are incorrectly positioned and not in line with manufacturer specifications. Inner tires can wear out and become progressively shallower with continued use. When this happens, performance is negatively impacted. 

If inner tire wear has occurred, this can cause lost traction for the driver

A lack of tread will also cause the driver to lose traction by not properly gripping the road surface, which can cause it to spin out of control. Additionally, improper inflation is an issue that can lead to inner tire wear, either from inflating the tire too much, or not enough. With these causes in mind, drivers should always inspect their tires to check for wear, and to reveal  any abnormalities. If the wear is advanced, fully replacing the tire may be necessary.

Auto Mechanic Training Students Should Watch for Camber Wear

Those wanting to become an auto mechanic might not know what “camber” means. Simply put, a vehicle’s camber is the measure of how far the wheel tilts while carrying the vehicle’s full weight. Also known as one-sided shoulder tire wear, camber wear is where one of the tread’s shoulder ribs has become shallower than others. This can be measured in two ways: positive camber, and negative camber. Positive camber is when the tire’s upper section leans away from the vehicle, while negative camber is when the lower section is tilting towards the outside. The latter scenario is where inner tire wear is more likely to happen, as the tire’s inside tread will wear out more quickly than its other sections. 

Functioning ball joints are necessary to ensure drivers can steer and change direction

Ball Joints Wearing Out Can Also Be a Warning Sign

If a driver notices that their car’s wheels have suddenly gone out of alignment, this could be the result of a larger underlying issue. More specifically, inner tire wear can be caused by the driver’s ball joints having worn out. These are important parts to have working within the vehicle, since they are necessary to keep the car steering as normal. As it connects the steering knuckles and control arms with one another, properly-functioning ball joints are essential to drivers maintaining their ability to steer and change direction normally. During your auto mechanic training, you can expect to learn about wheel alignment, and how to diagnose any alignment issues. With this in mind, be sure to notice any sign of worn-out ball joints, and be quick to correct the issue.

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