In situations where brakes are lightly used and in good working order turning the rotors is not advised.
Here are some scenarios where turning brake rotors may be necessary:
- Excessive Thickness Variation: If the thickness variation between the highest and lowest points of the rotor exceeds the manufacturer's specifications, turning the rotors can help restore uniform thickness.
- Deep Grooves or Scores: If the rotors have deep grooves or scores, turning can remove these imperfections and create a smooth surface.
- Uneven Wear:If the rotors show uneven wear, such as one side being more worn than the other, turning can even out the surface.
- Disc Thickness Under Minimum Specifications: Brake rotors typically have minimum thickness specifications mandated by the vehicle manufacturer. Turning the rotors may be necessary if they have worn down to or below these specifications, allowing worn brake pads space for proper movement and to avoid damage.
- Pad Tapering: If the brake pads show uneven wear (thinner on one side than the other), turning the rotors can correct the issue and ensure even wear.
- Resurfacing for New Brake Pads: When installing new brake pads, some mechanics may recommend turning the rotors to ensure proper contact and performance of the new pads.
- Noise and Vibration: If the brakes make noise or vibrate when applied, turning the rotors can help eliminate these issues by creating a smooth, flat surface.
It's important to note that turning rotors is not a permanent fix and may need to be repeated as the rotors wear over time. In some cases, if wear and damage are significant replacement may be a more cost-effective solution. Additionally, turning rotors too frequently or excessively can weaken the rotors and compromise their integrity, it is always recommended to consult with a qualified mechanic or follow manufacturer guidelines regarding brake rotor maintenance.
