Excessive runout can cause the rotor to wear unevenly, producing vibrations during braking. Resurfacing the rotor with a brake lathe also helps correct the runout.
This is easier to do with an on-car lathe than a conventional bench or machine lathe. Using a torque wrench instead of an impact wrench to give a final tightening to each lug nut prevents distortion in the hat section, inhibiting rotor disc wobbling.
Cleaning the inside of the rotor hat and the face of the hub using a drill-powered brush before installation will remove dirt and corrosion. If your vehicle was initially equipped with composite rotors with a separate hub and disc section , they could usually be replaced with cast iron rotors.
The hat section is thicker, and this can affect the steering and handling of some vehicles. Remember, braking friction generates a lot of heat. The disc section of the rotor absorbs the heat and dissipates it via cooling fins or vents between the faces of the disc.
Premium aftermarket rotors typically have the same casting configuration as original equipment rotors. This results in the same style and number of cooling vents between the disc faces — which is important for heat dissipation and managing brake noise. Economy rotors usually have a standard cooling vent configuration to simplify the casting process.
If a replacement rotor has a different design than originally installed, cooling or noise problems can crop up. An even better option is to rope in the services of a mobile mechanic like RepairSmith.
RepairSmith is a convenient mobile vehicle repair and maintenance solution. Fill this online form for an accurate cost estimate of your brake rotor replacement and repairs. However, there will still be situations where resurfacing makes more sense.
Whatever the situation, you can always rely on RepairSmith to help you out. Just contact them , and their ASE-certified technicians will be at your doorway in no time! When Should You Resurface Rotors? When Can I Resurface Rotors? When Should I Replace Rotors?
Can resurfacing fix all rotor surface imperfections? So, when is resurfacing viable? The first consideration is the rotor thickness. You feel the brake pedal vibrate when you stop. Schedule a brake inspection at our auto service center in San Antonio if you need assistance with brakes. When it comes to your brake system, you want to make sure that your auto parts are well constructed, reliable and under warranty.
To be safe, OEM car parts are your best bet. Most OEM brake pads are quieter and cause less wear on your rotors than generic brake pads. When in doubt, discuss your brake parts options with your auto service shop.
A few driving habits and techniques can put less wear on your brakes and make all your braking system components, including pads and rotors, last longer:. Your brakes will last longer if you obey the speed limit. Stopping at high rates of speed is very taxing on your brakes and will quickly wear down the pads.
Use your right foot for both gas and brake pedals. Some drivers use their left foot to hit the brake before their right foot is completely off the gas, requiring more braking effort.
Be aware of traffic. Stop gradually well before a traffic light, for example, rather than applying the brakes quickly when you get closer to the light. Minimize the amount of weight in your vehicle. With less mass to stop, your brakes will have to work less. Have inspections regularly. If your brake pads are worn, it puts more stress on your rotors and other parts.
If you need help identifying or fixing braking problems in San Antonio, visit Northside Ford for professional brake pad replacement and rotor service. Most original equipment brake rotors used to be designed with enough thickness to last at least two or more pad replacements.
Most newer cars have thinner rotors to save weight and could be worn to the minimum by the first time the brake pads need to be replaced. Normally both rotors need to be replaced because they will usually have the same amount of wear. Even if one side is "good enough" it is wise to replace both brake rotors at the same time to maintain even braking as any difference in rotor thickness will cause the brakes to pull to one side.
If a brake rotor has minimal lateral runout it should wear evenly, otherwise the result will be thickness fluctuations which will create vibration. It only takes. Excessive runout can be solved by installing tapered shims between the brake rotor and hub , or by resurfacing the rotor with an on-car brake lathe.
Runout can also be corrected using a conventional bench lathe, but it is a much more difficult procedure. Cleaning the face of the hub and the inside of the rotor hat with a drill powered brush before installation will remove dirt, rust, or any particles that can create gaps between the rotor and hub. Rotor distortions can be caused by improper tightening of the lug nuts.
Uneven torque between lugs can twist the rotor hat, causing the disc section of the rotor to wobble. Friction from the brake pads against the brake rotors generates a lot of heat.
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