Brake Bleeding: Service and Repair

Before removing the master cylinder cover, wipe it clean to prevent dirt and other foreign matter from dropping into the master cylinder.

Pressure Bleeding Adapter Mounted On Fluid Reservoir:

CAUTION: Use Bleeder Tank Special Tool C-3496-B with Fluid Reservoir Pressure Bleeding Adapter Special Tool 6643 to pressurize the brake system for bleeding.

Follow pressure bleeder manufacturer's instructions, for use of pressure bleeding equipment.

Trapped Air In Brake Line:

When bleeding the brake system. Some air may be trapped in the brake lines or valves far upstream. As much as ten feet from the bleeder screw. Therefore, it is essential to have a fast flow of a large volume of brake fluid when bleeding the brakes to ensure all the air gets out.

BLEEDING FRONT BRAKES
When bleeding the front brakes it is necessary that both halves of the caliper assembly be bled individually. The procedure for bleeding the front caliper is described below, this procedure should be followed to ensure that the caliper assembly is adequately bled.

Bleeding Inboard Caliper Half:

1. Attach a clear hose onto bleeder screw located on the top of the inboard half of the front caliper assembly. Put open end of clear hose into a clear container partially filled with fresh clean brake fluid.

CAUTION: Just cracking bleeder screw often restricts fluid flow. This will result in a slow and weak fluid discharge, and will NOT get all the air out of the hydraulic system.

2. Open bleeder screw on inboard half of the front caliper assembly at least ONE FULL TURN or more.

3. Bleed 4 to 8 ounces of brake fluid through inboard half of front caliper assembly being bled. When an air-free flow is maintained in clear plastic hose with no bubbles present in container, a good and complete brake bleed is indicated.
4. Close bleeder screw, and remove hose. Torque inboard bleeder screw to 10 Nm (88 inch lbs.).

Bleeding Outboard Caliper Half:

5. Attach clear hose on bleeder screw located on the top of the outboard half of front caliper assembly being bled. Put open end of hose into a clear container partially filled with fresh clean brake fluid.
6. Repeat steps 2 and 3 above on outboard half of the caliper assembly. Then close the bleeder screw on the outboard caliper.
7. Remove hose from bleeder screw, and torque the bleeder screw to 10 Nm (88 inch lbs.).
8. Again attach clear hose to bleeder screw located on the top of inboard half of front caliper assembly being bled. Put open end of hose into a clear container partially filled with fresh clean brake fluid.
9. Again repeat steps 2 and 3 above on the inboard half of the caliper assembly. Then close the bleeder screw on the outboard caliper.
10. Remove hose from bleeder screw, and torque the bleeder screw to 10 Nm (88 inch lbs.).

BLEEDING REAR BRAKES

Proper Procedure For Bleeding Air From Rear Brakes:

1. Attach a clear hose onto the bleeder screw located on the top of the caliper assembly. Put open end of hose into a clear container partially filled with fresh clean brake fluid.

CAUTION: Just cracking the bleeder screw often restricts fluid flow, and a slow, weak fluid discharge will NOT get all the air out.

2. Open the bleeder screw on the caliper assembly at least ONE FULL TURN or more.
3. After 4 to 8 ounces of fluid has been bled through, the brake system. And an air-free flow is maintained in the clear plastic hose and no bubbles are present in the container, this will indicate a good bleed.
4. Close the bleeder screw, and remove hose. Torque the bleeder screw to 10 Nm (88 inch lbs.).
5. Attach the clear hose on the bleeder screw of the next caliper assembly to be bled, and put open end of hose in container.
6. Repeat steps 2 and 3 above on the caliper assembly. Then close the caliper bleeder screw.
7. Remove hose from bleeder screw, and torque bleeder screw to 10 Nm (88 inch lbs.).
8. Test drive vehicle to be sure brakes are operating correctly and that pedal is solid.