Front Brake Disc Inspection

Front Brake Disc Inspection

Thickness and Parallelism

1. Raise and support the vehicle Service and Repair.

2. Remove the front wheels.

3. Remove the brake pads.

4. Using a micrometer (A), measure the brake disc thickness at eight points, about 45° apart and 10 mm (0.39 in) in from the outer edge of the brake disc. Replace the brake disc if the smallest measurement is less than the maximum refinishing limit.





NOTE: This is the maximum allowable difference between the thickness measurements.





5. If the brake disc is beyond the service limit for parallelism, refinish the brake disc with a Honda-approved commercially available on-car brake lathe.

NOTE: If the brake disc is beyond the service limit for refinishing, replace it Front Brake Disc Replacement.

6. Inspect the brake disc runout.

Runout

1. Raise and support the vehicle Service and Repair.

2. Remove the front wheels.

3. Remove the brake pads.

4. Inspect the brake disc to wheel surface for damage and cracks. Clean the brake disc thoroughly, and remove all rust.

5. 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.





6. Set up the dial gauge (C) against the brake disc as shown, and measure the runout at 10 mm (0.39 in) from the outer edge of the brake disc.






7. If the brake disc is beyond the service limit, refinish the brake disc with a Honda-approved commercially available on-car brake lathe.





NOTE:

- If the brake disc is beyond the service limit for refinishing, replace it Front Brake Disc Replacement.
- If the brake disc is replaced with a new one, check the new disc for runout. If the new disc is out of specification, refinish the disc.

8. Install the brake pads.

9. Clean the mating surfaces between the brake disc and the inside of the wheel, then install the front wheels.

Refinishing

NOTE: Refinish the brake disc with a commercially available on-car brake lathe.

1. Remove the brake caliper assembly Front Brake Disc Replacement.

2. Install the brake lathe brackets (A) to the knuckle (B).

NOTE: Place two bolts (C) in the brackets before tightening the bolts (D).






3. Install the on-car brake lathe adapters (A) to the brake lathe bracket (B), then refinish the brake disc.





4. Measure the brake disc runout, thickness, and parallelism.

NOTE:

- If the brake disc is beyond the service limit for refinishing, replace it Front Brake Disc Replacement.
- A new brake disc should be refinished if its runout is greater than 0.04 mm (0.0016 in).