Can A Brake Master Cylinder Be Repaired

How to Fix a Leak From the Restriction Main Cylinder

by Dan Ferrell

Photo courtesy of Specious at Wikipedia.org.

It is common for piston and valve seals within the brake main cylinder to leak afterwards years of service. Still, you can fix the trouble by installing new seals, sold at most car parts stores as minor brake principal cylinder kits. This guide is general in nature and will help you replace the seals on most primary cylinders. The steps will help you lot remove and install the new seals and reinstall the master cylinder in your automobile.

Step ane

Park your car in a condom place, open up the hood and locate the master cylinder. You will find the unit on the rear, driver side of the engine compartment and mounted on the brake booster cylinder--a rounded cylinder on the firewall, about 12 inches in diameter.

Pace ii

Disconnect the brake lines from the master cylinder using an adjustable wrench equally backup and a tube wrench to loosen the line nuts. This volition prevent impairment to the brake lines and basics. Place some store rags underneath the master cylinder to catch brake fluid from the lines.

Step three

Remove the two mounting bolts securing the master cylinder body to the brake booster. Employ a wrench or ratchet and socket.

Step 4

Remove the principal cylinder from the engine compartment and set it on the clean surface of a workbench. In one case y'all remove the master cylinder, plug or comprehend the restriction line openings with make clean shop rags to avert brake system contamination.

Step v

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 band securing the master cylinder pistons from the rear of the assembly; then remove the retaining band securing the valve from the elevation access where the brake fluid reservoir mounts.

Pace 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 betoken, it is very of import to keep pistons, springs, retainers and other internal components well organized so that yous can reassemble parts in the right lodge. Compare the seals from the new kit with the ones in the associates and supersede 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 department for more information.

Pace vii

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

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

Tips

• Buy the brake main cylinder kit for your item vehicle before you begin any piece of work on your brake arrangement to clinch availability. You can buy a minor restriction master cylinder kit at near auto parts stores. To drain the restriction organization and principal cylinder and locate components in your particular vehicle, consult your vehicle service manual. You tin can purchase i at nigh auto parts stores or consult i for free at most public libraries.

Things You'll Demand

• Adjustable wrench Tube wrench Shop rags Wrench set up Ratchet and socket Screwdriver Snap ring pliers Brake main cylinder kit--pocket-size Brake fluid

Writer Bio

Since 2003 Dan Ferrell has contributed general and consumer-oriented news to tv set and the Spider web. His work has appeared in Texas, New Mexico and Miami and on various websites. Ferrell is a certified automation and control technician from the Avant-garde Applied science Center in El Paso, Texas.

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