Removal
Models with vacuum brake booster |
Models with hydraulic brake booster |
1. Using a siphon, pump out the brake fluid from the master cylinder reservoir.
2. Unscrew the nuts (1) securing the brake pipes to the brake cylinder body. Plug the open holes. Tightening torque 25 Nm.
3. Disconnect the brake fluid level sensor connector.
4. Loosen the nuts (2) securing the master brake cylinder. Tightening torque 33 Nm.
5. Remove the brake master cylinder.
Installation
6. Installation is carried out in reverse order. After installation, bleed the brake system.
Pumping
1. Clamp the master cylinder by its flange in a vice so that the rear of the primary piston is accessible.
2. Remove the master cylinder reservoir cap.
3. Install flexible transparent hoses at the brake pipe connection points and insert the hoses into the master brake cylinder reservoir.
4. Fill the master cylinder reservoir approximately half full with clean brake fluid (DOT-3).
5. During bleeding, the ends of the hoses must be below the brake fluid level.
6. Using a rod with a rounded end, press and release the primary piston. The piston stroke should be approximately 25 mm. Observe the flow of fluid through the hoses. As air is removed, the force applied to the piston will increase and the piston stroke will decrease.
7. Continue bleeding until all air is removed from the cylinder.
8. Remove the transparent hoses.
9. Install the master cylinder reservoir cap.
10. Plug the brake pipe connections.
11. Remove the master cylinder from the vice.