Bleeding the Clutch Hydraulic System

Bleeding the clutch hydraulic system can be a real problem. The clutch master cylinder is located above the level of the clutch slave cylinder. The bleeder screw is located at the bottom of the clutch slave cylinder. When you depress the pedal to bleed the air out of the system, you actually push a very small amount of brake fluid down the hydraulic line to the slave cylinder. Unfortunately when you stop pumping the air that you are trying to drive down to the bleeder, is quickly rising to the top. So basically the bubble travels down 4 inches and when you stop, floats back up to the top. Similar to when you walk down the up escalator at the department store. As long as you keep walking you are O.K. but the moment you stop you end up right back where you started.

Items Needed

  • 1 - New Trigger Type Oiling Can (see photo)
  • 1 - Suction Bulb (see photo)
  • 1 - 2 ft. Length of Clear Vinyl Hose 3/16" I.D.
  • 1 - ATE Typ 200 or Super Blue Brake Fluid

Special Notes

The following instructions are for bleeding the system. For installation information we recommend purchasing a Bentley repair manual for your vehicle. Remember Brake fluid will damage the paint on your car. If spilled, wipe up immediately and rinse the effected area with clear water.

Starting the Job

To bleed the system more effectively follow these simple steps. You won't have to pump the pedal even once.

  1. Attach the 2-foot piece of vinyl hose over the end of the trigger style oil can.
  2. Fill the oilcan with clean brake fluid. (Don't clean out an old oil can, buy a new one)
  3. Use the suction bulb to draw out as much of the brake fluid from the reservoir as possible.
  4. Slip the 7mm wrench over the bleeder screw at the slave cylinder.
  5. Now attach the other end of the vinyl hose from the oilcan over the bleeder screw on the slave cylinder.
  6. Using the 7mm wrench open the bleeder screw.
  7. Give the oilcan 4 good squirts of brake fluid.

What you are doing now is bleeding the clutch system in the natural direction of the airflow. All the air bubbles will be forced up and out through the master cylinder reservoir. The only thing to watch for is don't let the master cylinder reservoir over flow. You may need to use the suction bulb once again to remove some surplus fluid from the top. Once completed. Lock down the bleeder screw. Disconnect the hose; make sure the reservoir is full. And your done, No air in the system, and you didn't have to pump the clutch pedal even once.

We recommend that your return the unused portion of the brake fluid in the trigger style oilcan to the brake fluid can, and seal the can for future use. Label the trigger oilcan, "For Brake Fluid Only". Wipe up any spilt brake fluid and rinse area with clear water.

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