Buick 89027184 Pad Kit,Rear Disc Brake

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This procedure applies to the front and rear brake pads section as seen in the figure below, The first step is to take off the brake fluid cap, and then sucking out nearly two-thirds of the fluid, and then putting the cap back on. Lose the bolts on the front or rear wheels, lift the car, and secure it on the jack stands placing blocks under the wheels on the opposite end. Take off the wheels and operate on one brake at a time for easier working and use the assembled brake for comparison. Examine the brake disc, and if machining has to be done, then refer to the following instructions when removing the disc. Before taking apart the brake, clean it by removing the brake dust with a brake system cleaner, and allow the brake to dry with a drain pan beneath to catch the residue, do not blow off the brake dust with compressed air. Before pulling off the caliper and the pad, one must use C-clamp to force the piston or several pistons into the caliper so as to create space for a new pad as one monitors the level of the brake fluid in master cylinder lest it spill over. On front brake pads, unbolt the smallest mounting bolt and then swivel the caliper up and provide a little support to it. For rear pads, hold the caliper up with the spline, remove the upper mounting bolt with one wrench and swing the caliper down for the access to the brake pads. Both inner and outer brake pads, and upper and lower pad retainers to the caliper mounting bracket should be removed, and if cracked or distorted, replaced. In the back side of both pads paint the anti squeal compound and let it settle for a few minutes before installing them. Finally, the upper and lower pad retainers must to be installed back on the caliper mounting bracket and then the inner and outer brake pads also. In case of front pads, for the caliper mounting bolt, check for signs of scoring and corrosion, and relube it with high temperature brake grease, if the bolt is dry then do the same with the upper mounting bolt. When inspecting rear pads, note and assess the slide pin and rubber boot; if the pin is dry, apply a thin coat of high temperature brake grease; for the lower pin, the same response. Finally when reinstalling the caliper the mounting bolts should be tightened to the specified torque setting as is the wheel lug nuts. After the completion of the job, apply pressure on the brake pedal to make the pad to stick on the disc several times, inspect the brake fluid level if low then add it and inspect he operation of the brake before use of the car.