FRONT BRAKE DISC
Runout
Raise and support S2000. Remove front wheels. Remove brake pads. Inspect disc surface for damage and cracks. Clean disc thoroughly, and remove all rust. Use wheel nuts and suitable flat washers to hold disc securely against hub, then mount a dial indicator to brake and measure runout at .4″ (10 mm) from outer edge of disc.
- Brake Disc Runout Service Limit: .004″ (.10 mm)
If disc is beyond service limit, refinish brake disc with an on-car brake lathe.
FYI: A new disc should be refinished if its runout is greater than service limit.
Thickness and Parallelism
Raise and support S2000. Remove wheels. Remove brake pads. Using a micrometer, measure disc thickness at 8 points approximately 45 degrees apart and .4″ (10 mm) in from outer edge of disc. Replace brake disc if smallest measurement is less than the MAX. refinishing limit.
FYI: This is the maximum allowable difference between the thickness measurements.
If the disc is beyond the service limit for parallelism, refinish brake disc with an on-car brake lathe. If it is beyond service limit for refinishing, replace the brake disc.
REAR BRAKE DISC
Runout
Raise and support Honda S2000. Remove wheels. Remove brake pads. Inspect disc surface for damage and cracks. Clean disc thoroughly, and remove all rust. Use wheel nuts and suitable flat washers to hold disc securely against hub, then mount a dial indicator to brake and measure runout at .4″ (10 mm) from outer edge of disc.
- Brake Disc Runout Service Limit: .004″ (.10 mm)
If disc is beyond service limit, refinish brake disc. A new disc should be refinished if its runout is greater than .004″ (.10 mm)
Thickness and Parallelism
Raise, support, and remove wheels. Remove brake pads. Using a micrometer, measure disc thickness at 8 points approximately 45° apart and .4″ (10 mm) in from outer edge of disc. Replace brake disc if smallest measurement is less than the MAX. Refinishing limit. If the disc is beyond the service limit for parallelism, refinish brake disc.
- Brake Disc Parallelism Standard: .0006″ (.015 mm)
If it is beyond service limit for refinishing, replace.