Brake Master Cylinder — Removal and Installation (Honda CR-V 1)

Brake Master Cylinder: 1. Central valve A; 2, 3. Channel; 4. Secondary chamber piston; 5. Central valve B; 6. Primary chamber piston

Typical view of the master cylinder (CR-V): 1. Bushings; 2. Gasket. Check for wear and damage; 3. Lid. Check the vent hole for cleanliness; 4. Mesh filter (wash); 5. Tank. Check for damage; 6. Seal. Check for wear and damage; 7. Silicone grease; 8. Master cylinder. Check the condition of the inner surface.

Warning! Brake fluid in Honda anti-lock brake system units (in the pump, modulator, hydraulic accumulator) is under very high pressure. Before disconnecting any hydraulic lines, the system must be decompressed. Failure to do so or performing decompression incorrectly may result in injury. For decompression, use tee 07HAA-SG00100 or equivalent device.

1. Disconnect the battery from ground.

2. Disconnect the wiring.

3. Remove the cap and drain the brake fluid from the reservoir.

4. Disconnect the tubes from the cylinder.

5. Loosen the nuts securing the cylinder to the vacuum booster, then remove the cylinder.

6. Installation is carried out in reverse order.

7. Fill the cylinder with DOT 3 or DOT 4 brake fluid.

8. Remove air from the cylinder (see below).

Removal air

The procedure is performed both on a removed cylinder and directly on the vehicle.

1. Secure the cylinder in a vice.

2. Attach the brake pipe sections to the cylinder. Bend them so that the end of the tube is slightly below the fluid level in the cylinder reservoir.

3. Fill the reservoir with DOT 3 or DOT 4 brake fluid.

4. Press the master cylinder piston until all bubbles in the reservoir disappear.

5. Disconnect the tubes, add liquid to the cylinder and close the cylinder openings with plugs.

6. If the cylinder is installed on the vehicle, do the following.

a. Loosen the tube 1/4 turn.
b. Ask the assistant to press the brake pedal, wrap the tube and ask the assistant to slowly release the pedal.
c. Check the fluid level in the reservoir, top up if necessary.
d. Repeat the procedure for all tubes until no more bubbles appear.

Caution: Always tighten the hose nipple before releasing the pedal.

7. If necessary, completely remove air from the brake system.

If the procedure for removing air from the master cylinder is performed properly, bleeding the entire brake circuit is not required.