Front Brake

BRAKE: FRONT BRAKE (for 4GR-FSE): INSPECTION

1. INSPECT BRAKE CYLINDER AND PISTON

(a) Check the cylinder bore and piston for rust or scoring.

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

2. INSPECT PAD LINING THICKNESS

(a) Using a ruler, measure the pad lining thickness.





Pad Lining Thickness:





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

HINT
Be sure to check wear of the front disc after replacing the brake pad with a new one.

3. INSPECT FRONT NO. 1 DISC BRAKE PAD SUPPORT PLATE

(a) Make sure that the front No. 1 disc brake pad support plate has sufficient rebound, has no deformation, cracks or wear, and that all rust and dirt are cleaned off.

If necessary, replace the front disc brake pad support plate.

4. INSPECT FRONT NO. 2 DISC BRAKE PAD SUPPORT PLATE

(a) Make sure that the front No. 2 disc brake pad support plate has sufficient rebound, has no deformation, cracks or wear, and that all rust and dirt are cleaned off.

If necessary, replace the front No. 2 disc brake pad support plate.

5. INSPECT DISC THICKNESS

(a) Using a micrometer, measure the disc thickness.





Text in Illustration





Disc Thickness:





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

6. INSPECT DISC RUNOUT

(a) Using SST to hold the disc, tighten the disc with the 5 hub nuts.





SST : 09330-00021

Torque : 103 Nm (1,050 kgf-cm, 76 ft-lbf)

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





Maximum disc runout:

0.05 mm (0.00197 in.)

NOTICE:
* Keep the magnet of the dial indicator away from the axle hub and speed sensor.
* Install the dial indicator to the shock absorber.

(c) If the runout exceeds the maximum value, change the installation positions of the disc and axle so that the runout will become minimal. If the runout exceeds the maximum even when the installation positions are changed, check the bearing play in the axial direction and the axle hub runout Front Axle Hub. If the bearing play and the axle hub runout are normal and if the disc thickness is not within the specified range, grind the disc. If the disc thickness is less than the minimum, replace the disc.

(d) Remove the 5 hub nuts and front disc.