Loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands. Remove the wheel and install the lug nuts to hold the disc in place against the hub flange; if the lug nuts don't contact the disc when screwed on all the way, install washers under them. For rear discs, release the parking brake. Remove the brake caliper without disconnecting the brake hose, suspending it out of the way with a piece of wire after removing the caliper bolts. Then, remove the two caliper mounting bracket-to-steering knuckle bolts or, for rear calipers, the bracket-to-knuckle bolts and take off the mounting bracket. Visually inspect the disc surface for score marks and other damage; light scratches and shallow grooves are normal, but deep scoring requires disc removal and refinishing by an automotive machine shop. Check both sides of the disc, and if pulsating occurs during brake application, suspect disc runout. To check runout, place a dial indicator about 1/2-inch from the outer edge of the disc, set it to zero, and turn the disc; the reading should not exceed the specified allowable runout limit. Regardless of the reading, discs should be resurfaced to ensure a smooth finish and a perfectly flat surface, eliminating brake pedal pulsation. If not resurfaced, remove the glaze from the surface with emery cloth or sandpaper using a swirling motion. Ensure the disc is not machined to a thickness under the specified minimum thickness, which is cast or stamped into the disc, and check the thickness with a micrometer. Remove the lug nuts or the two disc retaining screws to take off the disc from the hub; if the disc is stuck, thread two bolts into the holes provided and alternate tightening them until the disc is free. For rear discs, if the parking brake shoes are holding them, remove the rubber plug and use a flat-blade screwdriver to turn the adjuster star wheel until they loosen, then re-adjust the parking brake shoes for minimal clearance without drag. Place the disc in position over the threaded studs, install the disc retaining screws, and tighten them securely. Install the caliper mounting bracket and caliper, tightening the bolts to the specified torque. Finally, install the wheel, lower the vehicle to the ground, tighten the lug nuts to the specified torque, and depress the brake pedal a few times to bring the brake pads into contact with the disc, checking the operation of the brakes carefully before driving.
Posted by HondaPartsNow Specialist