FRONT BRAKE INSPECTION


  1. INSPECT BRAKE CYLINDER AND PISTON


    1. Check the cylinder bore and piston for rust and scoring.

      If necessary, replace the disc brake cylinder assembly and front disc brake piston.

  2. INSPECT PAD LINING THICKNESS


    1. A003DO5

      Using a ruler, measure the pad lining thickness.

      Standard Thickness
      12.5 mm (0.492 in.)
      Minimum Thickness
      1.0 mm (0.0394 in.)

      If the pad lining thickness is less than the minimum thickness, replace the disc brake pads.

      Tech Tips

      Be sure to check the wear of the front disc after replacing the brake pads with new ones.

  3. INSPECT FRONT DISC BRAKE PAD SUPPORT PLATE


    1. Make sure that the disc brake pad support plate has sufficient rebound, no deformation, cracks or wear, and that all rust and dirt is cleaned off.

      If necessary, replace the disc brake pad support plate.

  4. INSPECT DISC THICKNESS


    1. A003DUP

      Using a micrometer, measure the disc thickness.

      Standard Thickness
      26.0 mm (1.02 in.)
      Minimum Thickness
      23.0 mm (0.906 in.)

      If the disc thickness is less than the minimum, replace the front disc.

  5. INSPECT DISC RUNOUT


    1. Inspect the front axle hub bearing looseness Click here and front axle hub runout Click here.

    2. Install the disc with the 5 hub nuts.

      Torque:
      50 N*m  { 510 kgf*cm, 37 ft.*lbf }
    3. A003B7Q

      Using a dial indicator, measure the disc runout 10 mm (0.394 in.) from the outer edge of the front disc.

      Maximum disc runout
      0.05 mm (0.00197 in.)

      If the runout is more than the maximum, change the installation position of the disc to minimize runout. If the runout is more than the maximum even when the installation position is changed, grind the disc. If the disc thickness is less than the minimum, replace the front disc.

    4. Remove the 5 nuts and front disc.