Wednesday, March 4, 2015

Fix A Leak In The Brake Master Cylinder

Regular brake master cylinder sketch


Remove the two mounting bolts securing the crack cylinder body to the brake booster. Applicability a wrench or ratchet and socket.4. Remove the skillful cylinder from the engine compartment and place it on the Disinfected surface of a workbench.


Instructions


1. Stadium your van in a sheltered distance, plain the hood and allot the adept cylinder. You Testament acquisition the unit on the rear, Chauffeur side of the engine compartment and mounted on the brake booster cylinder--a rounded cylinder on the firewall, approximately 12 inches in width.


2. Disconnect the brake lines from the skillful cylinder using an adjustable wrench as backup and a tube wrench to loosen the column nuts. This Testament prevent damage to the brake lines and nuts. Compass some shop rags underneath the proficient cylinder to accept brake fluid from the lines.


3.It is commonplace for piston and valve seals inside the brake master cylinder to leak after agedness of utility. Yet, you can establish the disagreement by installing advanced seals, sold at most Car parts stores as toddler brake skillful cylinder kits. This american man is universal in humor and Testament advice you exchange the seals on most crack cylinders. The steps Testament advice you remove and install the modern seals and reinstall the skillful cylinder in your motorcar.


Once you remove the master cylinder, plug or cover the brake line openings with clean shop rags to avoid brake system contamination.


5. Empty the brake fluid from the reservoir into a plastic container and remove the reservoir unit from the master cylinder using a screwdriver. Using snap ring pliers, remove the lock ring securing the master cylinder pistons from the rear of the assembly; then remove the retaining ring securing the valve from the top access where the brake fluid reservoir mounts.


6. Tap the cylinder assembly on the workbench surface to slide the two pistons, seals and valve assemblies out of the cylinder body. At this point, it is very important to keep pistons, springs, retainers and other internal components well organized so that you can reassemble parts in the right order. Compare the seals from the new kit with the ones in the assembly and replace them accordingly. Reinstall the parts into the cylinder body and install the retaining and lock rings. Install the reservoir on the master cylinder and bleed the unit; see the Tips section for more information.


7. Set the master cylinder in place in the engine compartment. Start the brake line nuts by hand on the master cylinder to avoid damage to the threads, and install the two mounting bolts. Tighten the lines and bolts.


8. Bleed the brake system according to your car manufacturer's recommendations and add brake fluid as needed. Check the master cylinder for leaks.