Rear disc brakes (since 1987) (Mazda Capella GC)

The design of the brake pads and cylinders, as well as the procedure for checking them, are basically the same as for front disc brakes. For 1987 vehicles with rear disc brakes, the wheel bearing adjustment and hub grease replacement procedures described for drum brakes apply. On cars produced in 1988 and later, the rear wheel bearings are not disassemblable and do not require adjustment. Since complete disassembly of the rear brake caliper requires special tools, this work should be performed at a service center.

Replacing brake pads

Raise the car, secure it on stands and remove the rear wheel. Disconnect the parking brake cable from the bracket and caliper arm.

Figure 15.73. Rear disc brakes of 1987 vehicles: 1 – parking brake cable; 2 – brake hose; 3 – caliper with brake cylinder and brake pads; 4 – brake pad pins and bushing; 5 – hub cap; 6 – nut; 7 – bearing; 8 – brake disc; 9 – brake caliper bracket; 10 – rear brake protective cover

On 1987 vehicles, remove the guide pins and brake cylinder (figure 15.73). Remove the brake pads by prying them off with a screwdriver.

Figure 15.71. Rear disc brakes of 1988 production vehicles: 1 – brake disc; 2 – clamping bracket; 3 – caliper bracket; 4 – V-shaped spring; 5 – brake pads and noise insulation lining; 6 – caliper bracket; 7 – parking brake cable; 8 – brake hose

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On vehicles produced since 1988, unscrew the upper mounting bolt and rotate the caliper on the axle, tilting it down to provide access to the pads (figure 15.71). Remove the V-spring, pads, noise insulation linings and guide brackets.

The further order of replacement corresponds to that given in section. 10 "Brake system".

Inspect the brake disc and replace it if it is severely damaged. On vehicles with ABS, replace the wheel speed sensor located on the disc.

For all models, use round-nose pliers to turn the pistons clockwise and press them into the cylinder. This is necessary to install new brake pads, which are thicker than the worn ones.

On 1987 vehicles, install new pads in the caliper. Install the caliper and tighten the guide pins to the specified torque.

On vehicles produced since 1988, install the shims, pads and clamps, rotate the caliper into place and tighten the mounting bolt to the specified torque.

Repeat all operations for the other rear brake.

Caution! Before driving, press the brake pedal several times to press the pads against the brake disc. Check the brake fluid level and top it up if necessary. Make sure your brakes are working properly; perform several test braking maneuvers at low speed before driving onto the road.