FRONT BRAKE(except 6-Pot Caliper) INSPECTION

PROCEDURE


  1. INSPECT BRAKE CYLINDER AND PISTON


    1. Check the disc brake cylinder assembly bore and front disc brake piston for rust and scoring. If necessary, replace the disc brake cylinder assembly and front disc brake piston.

  2. INSPECT PAD LINING THICKNESS


    1. Using a ruler, measure the front disc brake pad lining thickness.

      Standard Thickness
      13.5 mm (0.531 in.)
      Minimum Thickness
      1.0 mm (0.0394 in.)

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

      Tech Tips

      Be sure to check the front disc thickness when replacing the front disc brake pads with new ones.

  3. INSPECT ANTI-RATTLE SPRING


    1. Clean the No. 1 anti-rattle spring, inner anti-rattle spring and check it for deformation and cracks.

    2. When installing the No. 1 anti-rattle spring to the disc brake cylinder, check that the spring's force is applied to the hole pin and front disc brake pad.

  4. INSPECT DISC THICKNESS


    1. B006F65C01
      *a Micrometer

      Using a micrometer, measure the front disc thickness.

      Standard Thickness
      34.0 mm (1.34 in.)
      Minimum Thickness
      31.0 mm (1.22 in.)

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

  5. INSPECT DISC RUNOUT


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


    2. Hold the front disc, tighten the front disc with the 5 hub nuts.

      Torque:
      140 N*m  { 1428 kgf*cm, 103 ft.*lbf }
    3. B006GV8C01
      *a Dial Indicator

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

      Maximum Disc Runout
      0.04 mm (0.00157 in.)

      Note

      Keep the magnet of the dial indicator away from the front axle hub sub-assembly and front speed sensor.

      If the runout exceeds the maximum value, change the installation position of the front disc to minimize the runout. If the runout exceeds the maximum even when the installation position is changed, replace the front disc.

    4. Remove the 5 hub nuts and front disc.