Lincoln F8VZ-1125-AA Rotor Assembly

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This procedure applies to both front and rear disc brake assemblies. Loosen the wheel lug nuts, raise the vehicle and support it securely on jackstands. Remove the wheel. Remove the brake caliper. After removing the caliper bolts, suspend the caliper out of the way with a piece of wire. Reinstall three lug nuts to hold the disc against the hub. Visually check the disc surface for score marks and other damage. To check disc runout, place a dial indicator at a point about 1/2-inch from the outer edge of the disc. Set the indicator to zero and turn the disc. The indicator reading should not exceed the specified allowable runout limit. The disc must not be machined to a thickness less than the specified minimum refinish thickness. The minimum wear thickness is cast into the inside of the disc. On pre-1991 vehicles, the front brake disc is also the front hub. On 1991 and later vehicles, remove the lug nuts that are temporarily holding the disc to the hub and lift off the disc. Mark the relationship between the disc and the hub, then lift the disc off the hub assembly. On 1998 and 1999 models, the disc is secured to the hub with two rivets. Drive the center mandrels out of the rivets with a punch, then use a 3/8-inch drill to remove the heads of the rivets for disc removal. The rear brake discs on all vehicles are removed in the same manner as 1991 and later front discs. Install the disc onto the hub assembly. Install the brake pads and caliper assembly over the disc and position it on the steering knuckle (front), or on the torque plate (rear). Install the caliper bolts and tighten them to the torque. Install the wheel, then lower the vehicle to the ground. Depress the brake pedal a few times to bring the brake pads into contact with the rotor. Bleeding of the system will not be necessary unless the brake hose was disconnected from the caliper. Check the operation of the brakes carefully before placing the vehicle into normal service.

If not resurfacing, deglaze the brake pad surface with emery cloth or sandpaper.

Reinstall three inverted lug nuts to hold the disc against the hub. This ensures that the disc remains securely in place for inspection.