Should you machine rotors?
If your rotor surface is smooth there is generally no need to have them turned. If, however, you have warping, or rough spots they should be turned, or replaced if need be. This is easily detected if you have a solid, non-pulsing braking action when you press down on the pedal.
How often should you machine rotors?
about every 70,000 miles
They should be replaced about every 70,000 miles on most vehicles. Of course, this may vary depending on your style of driving, the weight of your vehicle, the quality of the braking components, and the use of your vehicle. Just like brake pads, brake rotors should be replaced in pairs for even stopping performance.
What happens if you don’t machine rotors?
If you don’t replace the rotors when needed, you risk brake failure and an accident. The rotor absorbs and dissipates heat when the brakes are applied. The thinner the rotor becomes, the more heat is absorbed. This excess heat warps the rotor.
How much do you machine off rotors?
Rotors can be turned only about 1 or 2 millimeters before they become too thin for safe use and will have to be discarded and replaced. Brake rotors that have been repeatedly over heated may warp and create a vibration in the wheel. This warping will significantly wear out your tires and suspension systems.
How do I know if my rotors need to be resurfaced?
Your rotors may need attention if you’ve noticed any of the following:
- Vibrations in your steering wheel when braking.
- Vibrations in your brake pedal when you use your brakes.
- Wobbling wheels, possibly from worn-out wheel bearings that could lead to warped rotors or uneven brake pad wear.
Are rotor resurfacing worth?
In the long run, it’s likely less expensive to replace your rotors when there are consistencies in the face of the rotor. New rotors won’t wear as quickly on your brake pads as damaged rotors, and resurfacing the rotors means you’ll only get one last “hoorah” out of them before they need to be replaced anyway.