Front Brake Rotor: Runout
- Raise the front of the vehicle, and make sure it is securely supported. Remove the front wheels.
- Remove the brake pads. See FRONT DISC BRAKE PADS .
- Inspect the disc surface for damage and cracks. Clean the disc thoroughly and remove all rust.
- Install suitable flat washers (A) and wheel nuts, and tighten the nuts to the specified torque to hold the disc securely against the hub. See Fig 1 .
- Set up the dial gauge against the brake disc as shown, and measure the runout at 5 mm (0.2 in.) from the outer edge of the disc. See DISC BRAKE SPECIFICATIONS table.
- If the disc is beyond the service limit, refinish the brake disc with an on-car brake lathe. The Kwik-Lathe produced by Kwik-way Manufacturing Co. and the "Front Brake Disc Lathe" offered by Snap-on Tools Co. are approved for this operation. See DISC BRAKE SPECIFICATIONS table.
NOTE:
If the brake disc is beyond the service limit for refinishing, replace it. A new disc should be refinished if its runout is greater than 0.10 mm (0.004 in.). See DISC BRAKE SPECIFICATIONS
table.