Rear brake caliper (Discovery 1)

Removal

1. Remove the rear wheels.

2. Use a suitable clamp to clamp the brake hose to prevent brake fluid from leaking.

3. Disconnect the brake line from the caliper.

4. Plug the pipe.

5. Remove the retaining pins and brake pads. If you plan to reinstall the pads, mark the locations where they will be installed.

6. Loosen the mounting bolts and remove the caliper.

Repair

Note: Do not separate the caliper halves.

7. Wash the caliper with brake cleaner.

8. Using a wooden block and compressed air to adjust the piston release speed, push the pistons out of the caliper.





9. Mark the piston installation locations.

10. Using a hook, remove the boot holder.

11. Carefully remove the boot and seal. Be careful not to damage the grooves in the caliper body.

The article was copied from this resource (lrman.ru)

12. Wash the caliper pistons and cylinders with brake cleaner. If there are any nicks or scratches on the piston or cylinder, replace the caliper.

13. Lubricate the new seal with clean brake fluid. Place the oil seal into the groove of the caliper cylinder by hand. The oil seal and its seat are not the same size: you will feel the oil seal coming out of the groove.

14. Lubricate the corresponding piston with brake fluid. Insert the piston into the caliper by hand. The piston head should protrude from the caliper by approximately 8 mm.

15. Lubricate the new dust boot with brake fluid, place the dust boot on the piston and insert it into the groove of the caliper. Using the LRT-70-500 clamp, press in the boot holder.

Inner piston

16. The procedure for replacing the inner piston seal is similar to the replacement for the outer one. Repeat steps 8-15.

Installation

17. Installation is carried out in reverse order. The tightening torque of the caliper mounting bolts is 82 Nm, and the wheel nuts are 130 Nm.