CHECK BRAKE CYLINDER AND PISTON
Check the cylinder bore and piston for rust or scoring. If necessary, replace the rear disc brake caliper assembly and piston.
CHECK PAD LINING THICKNESS
Using a ruler, measure the pad lining thickness.
| Standard thickness |
|---|
| 13.5 mm (0.532 in.) |
| Minimum thickness |
|---|
| 1.0 mm (0.0394 in.) |
If the pad lining thickness is less than the minimum, replace the pad.
CHECK REAR DISC BRAKE ANTI-RATTLE SPRING
Use brake cleaner to clean the rear disc brake anti-rattle spring. Check for deformation and cracks.
When installing the rear disc brake anti-rattle spring to the rear disc brake caliper, check that the spring's force is applied to the hole pin and brake pad.
CHECK REAR DISC THICKNESS
Using a micrometer, measure the disc thickness.
| Standard thickness |
|---|
| 12.40 inch disc |
| 20.0 mm (0.787 in.) |
| 13.19 inch disc |
| 22.0 mm (0.866 in.) |
| Minimum thickness |
|---|
| 12.40 inch disc |
| 18.0 mm (0.709 in.) |
| 13.19 inch disc |
| 20.0 mm (0.787 in.) |
If the disc thickness is less than the minimum, replace the rear disc.
CHECK DISC RUNOUT
Install the disc in place with the 5 hub nuts.
Using a dial indicator, measure the disc runout 10 mm (0.394 in.) from the outer edge of the rear disc.
| Maximum disc runout |
|---|
| 0.04 mm (0.00157 in.) |
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 looseness Click here and the axle hub runout Click here. 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.
Remove the rear disc.