Front Brake Disc Inspection
Runout
  1. Raise the front of the vehicle, and support it with safety stands in the proper locations.
  1. Remove the front wheels.
  1. Remove the brake pads: 1-piston caliper type, 2-piston caliper type.
  1. Inspect the brake disc surface for damage and cracks. Clean the brake disc thoroughly, and remove all rust.
  1. Install suitable flat washers (A) and the wheel nuts (B), and tighten the wheel nuts to the specified torque to hold the brake disc securely against the hub.
  1. Set up the dial gauge against the brake disc as shown, and measure the runout at 10 mm (0.39 in.) from the outer edge of the brake disc.
    Brake disc runout:
    Service limit:
    0.04 mm (0.0016 in.)

  1. If the brake disc is beyond the service limit, refinish the brake disc with a commercially available on-car brake lathe.
    Max. refinishing limit:
    1-piston caliper type:
    23.0 mm (0.91 in.)
    2-piston caliper type:
    30.0 mm (1.18 in.)

    NOTE:
    • If the brake disc is beyond the service limit for refinishing, replace it.
    • A new brake disc should be refinished if its runout is greater than 0.04 mm (0.0016 in.).
  1. Clean the mating surfaces of the brake disc and the inside of the wheel, then install the front wheels.