Brake Master Cylinder
An automotive master cylinder takes the input of the brake pedal and uses it to push hydraulic fluid away to the trundle cylinders and brake calipers. After the proficient cylinder is replaced the brakes commitment to be bled to remove air from the step. Provided air is trapped in the brake lines it Testament lessen the extent of draft the skillful cylinder applies to the brakes.
Removing the Master Cylinder
Cause by siphoning as all the more of the brake fluid elsewhere of the master cylinder as doable. Brake fluid Testament strip the distemper off metal so be careful not To admit brake fluid to come in contact with any painted surfaces on the vehicle.
Disconnect the hydraulic lines from the proficient cylinder. Disconnect the pushrod from the brake pedal. Remove the two bolts that connect the masterly cylinder to the dynamism booster. Remove the crackerjack cylinder from the vehicle.
Depending on the dash off and design of the vehicle you're function you may hold to remove components from the ancient crackerjack cylinder and transfer them to the modern one. Replace the guidelines listed in the vehicle's utility guide.
Installing the Master Cylinder
Position the brake masterly cylinder against the bent booster and reconnect the bolts that secure it. Reconnect the pushrod from the brake pedal. Reconnect the hydraulic lines to the skilled cylinder. Fill the crackerjack cylinder with latest hydraulic fluid.
Bleeding the Brake Lines
Bleeding the brake lines is the step by which air is forced elsewhere of the hydraulic step, and should be done any period a brake course Element is removed or the brake lines are disconnected.
Cause by forging definite the vehicle is parked on a even surface and the skillful cylinder is topped off. End not confess the masterly cylinder to empty during this action. That would acquiesce extended air to enter the hydraulic course.
On drum brakes the bleeder screw is usually located on the inboard side of the brake backing plate. On disc brakes the bleeder screw is normally near the fitting where the brake line attaches to the caliper.Start with the wheel closest to the master cylinder; on most cars this will be the front left wheel. Fit a length of clear plastic tubing over the bleeder screw and place the other end in a jar with brake fluid in the bottom.Lift the vehicle and support with jack stands underneath the frame or axles. Remove the wheels and tires. You will need to locate the bleeder screw on each wheel cylinder/brake caliper.
Make sure the end of the hose in the jar is covered with brake fluid at all times.
Have an assistant operate the brake pedal. Have the assistant pump the brake pedal a few times and then hold it down. Open the bleeder screw, and watch as the fluid leaks out. You are looking for air bubbles in the line.
Close the screw and repeat the process until fluid comes out of the line with no air bubbles. Then continue around to the right front wheel, then the left rear wheel and finally the right rear wheel. After all the brakes have been bled you can reinstall the wheels and tires and lower the vehicle.
