Front Brake Disc Inspection: Runout

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Perform brake disc thickness check first, see THICKNESS AND PARALLELISM .

Raise the front of the vehicle, and support it with safety stands in the proper locations (see LIFT AND SUPPORT POINTS )
Remove the front wheels
Remove the brake pads (see FRONT BRAKE PAD INSPECTION AND REPLACEMENT )
Inspect the brake disc to wheel surface for damage and cracks Clean the brake disc thoroughly, and remove all rust
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

Fig 1: Flat Washers And Wheel Nuts With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Set up the dial gauge against the brake disc as shown, and measure the runout at 10 mm (3/8 in) from the outer edge of the brake disc
Brake disc runout:

Service limit 0 04 mm (0 0016 in)
If the brake disc is beyond the service limit, refinish the brake disc with a Honda-approved commercially available on-car brake lathe
Max refinishing limit: 26 0 mm (1 02 in)
NOTE:
- If the brake disc is beyond the service limit for refinishing, replace it (see 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
Install the brake pads (see FRONT BRAKE PAD INSPECTION AND REPLACEMENT )
Clean the mating surfaces between the brake disc and the inside of the wheel, then install the front wheels