Brembo Brakes

Brake Disc Run Out (Brembo Brakes)

Special Service Tools





Dial Test Indicator Gauge and Stand

WARNING: BRAKE DUST, IF INHALED CAN DAMAGE YOUR HEALTH. ALWAYS REMOVE BRAKE DUST USING A VACUUM BRUSH. DO NOT USE A COMPRESSED-AIR LINE TO DISPERSE BRAKE DUST INTO THE ATMOSPHERE.

CAUTION: Replacement of nuts and bolts: Various thread-locking devices are used on nuts and bolts throughout the vehicle. These devices restrict the number of times a nut or bolt can be used.

CAUTION: The Brembo caliper is aligned to the brake disc when it is first installed to the vehicle, therefore, care must be taken not to disturb this alignment. When removing the caliper; remove the bolts that secure the anchor bracket to the vertical link only. Do NOT loosen any other caliper bolts.

1. Raise front of vehicle and support on stands.

2. Remove wheel.





3. Remove brake pads from caliper.
- Remove 'R' clips.
- Withdraw pins from caliper.
- Remove anti-rattle spring.
- Remove brake pads.

CAUTION: Only remove the bolts securing the caliper anchor bracket to the vertical link. Refer to caution above for more information.

CAUTION: Do not allow the caliper to hang on the hydraulic hose, as this will damage the hose.





4. Remove caliper from vertical link.
- Remove bolts.
- Remove and tie caliper aside.

5. Make sure that wheel bearing end-float is within specification.





6. Measure brake disc run-out.
- Install brake disc to hub and secure with all wheel nuts, tighten wheel nuts to 20 Nm in a diagonal sequence.
- Position the gauge so that the pointer contacts the disc, between the disc's outer drill holes and the disc's outer edge.
- Slowly rotate the disc one revolution, the disc run-out must not exceed the specification.

7. If the brake disc run-out exceeds specification, reposition the brake disc on the hub and repeat the above procedure. Continue repositioning the brake disc until the run-out is within specification.

8. If the brake disc run-out still exceeds specification, check the hub face run-out.

9. Remove brake disc.





10. Measure hub face run-out.
- Position the gauge so that the pointer contacts the hub face.
- Slowly rotate the hub one revolution, the hub run-out must not exceed the specification.
- If the hub exceeds the maximum run-out specification replace the hub.

NOTE: Make sure the brake disc and hub mating surfaces are clean.

11. If the hub run-out is within specification replace the brake discs.

12. When the disc run-out is within specification, index mark the hub and disc for future installment.





13. Install caliper to vertical link. Install and tighten bolts to 140 Nm.

CAUTION: Retracting the caliper piston may cause the fluid reservoir to over-flow. Remove brake fluid spillage immediately from paint work, with clean water.

CAUTION: Note the condition of pins and 'R' clips and replace if necessary.





14. Install brake pads into caliper housing.
- Slowly retract caliper pistons.
- Install pads.
- Position anti-rattle spring.
- Install pins.
- Install 'R' clips.

15. Install wheels.