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Wheel Alignnment & Balancing

Wheel Alignment and Wheel Balancing are two totally different things, but many people often get them confused. Here's a quick explanation.

The symptoms of a car that is out of alignment are:

  • Uneven or rapid tire wear
  • Pulling or drifting away from a straight line
  • Wandering on a straight level road
  • Spokes of the steering wheel off to one side while driving on a straight and level road.

The symptoms of a wheel that is out of balance are:

  • Vibration in the steering wheel at certain highway speeds.
  • Vibration in the seat or floorboard at certain highway speeds.
  • Scalloped or cupped wear pattern on the tires

Wheel Alignment

While it's often referred to simply as an "alignment" or "wheel alignment," it's really complex suspension angles that are being measured and a variety of suspension components that are being adjusted. This makes an alignment an important suspension-tuning tool that greatly influences the operation of the vehicle's tires.

Out-of-alignment conditions occur when the suspension and steering systems are not operating at their desired angles. Out-of-alignment conditions are most often caused by spring sag or suspension wear (ball joints, bushings, etc.) on an older vehicle. They can also be the result of an impact with a pothole or curb, or a change in vehicle ride height (lowered or raised) on any vehicle regardless of age.

Incorrect alignment settings will usually result in more rapid tire wear. Therefore, alignment should be checked whenever new tires or suspension components are installed, and any time unusual tire wear patterns appear. Alignment should also be checked after the vehicle has encountered a major road hazard or curb.

To check to see if you need an alignment, first check each tire and look for uneven wear patterns. The problem with this method, however, is that if you can see a wear pattern like the ones listed below, it may be too late to save that tire. This is why it is a good idea to have your alignment checked periodically by your alignment specialists at Wallace Autos.

At each tire, take a coin and insert it in the tread at the inside, center and outside.

  • If the tread is deeper on the edges than in the center, the tire is over inflated.
  • If the tread is deeper in the center than the edges, the tire is under inflated.
  • If the tread is deeper on one side than the other, have your wheel alignment checked soon.
  • Run your hand back and forth across the tread, being careful not to cut yourself on any debris or exposed steel belt wire. If the tread is smooth in one direction, but jagged in the other you have what is called a "saw-tooth" wear pattern which is caused by a toe-in problem. Have the alignment checked as soon as possible as this condition causes rapid tire wear.

The first two conditions do not call for a wheel alignment but the second two do. If these wear patterns are pronounced, you should replace the tires or move them to the rear before aligning the car. Ask your alignment specialist at Wallace Autos for the proper recommendation.

Another indication of an out-of-alignment condition is a car that continuously drifts or pulls to one side of the road when you let go of the wheel. A car that is hard to keep in a straight line without constant steering corrections is also a candidate. These conditions may or may not also contribute to premature tire wear.

A wheel alignment cannot be done on a car with loose or worn front end parts. The technician will first check for worn parts and inform you of any problems before beginning the alignment.

Wheel Balance

Out-of-balance tires will cause a car to vibrate at certain speeds, usually between 50 and 70 mph. A tire is out of balance when one section of the tire is heavier than the others. One ounce of imbalance on a front tire is enough to cause a noticeable vibration in the steering wheel at about 60 mph.

To balance a wheel, the technician will mount it on a balancing machine which spins the wheel to locate the heavier part. He will then compensate for the heavy part by attaching a lead weight on the opposite side. Many people are pleasantly surprised at how smooth their car drives after balancing all four wheels.

Most high quality tires will hold their balance fairly well and go out of balance very gradually. If you notice a vibration that wasn't there the day before, it is possible that one of the lead balancing weights fell off. If you feel the vibration mostly in the steering wheel, the problem is most likely in a front wheel. If the vibration is mostly in the seat, the problem is probably in the rear.

Wallace Autos is happy to send you timely service reminders to remind you that it is time for your vehicle’s recommended maintenance.



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14697 E. Easter Ave.
Unit F
Centennial, CO 80112
303.766.0072
service@wallaceautos.com

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