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Home >> Subaru >> 2008 >> Outback Base, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System - Brakes - Mechanical >> Air Bleeding >> Procedure >> Master Cylinder

Master Cylinder

NOTE:
  • If the master cylinder is disassembled or reservoir tank is empty, bleed the master cylinder.
  • If bleeding the master cylinder is not necessary, bleed the brake line without doing the procedure below. <Ref. to , BRAKE LINE , PROCEDURE, Air Bleeding.>
  1. Fulfill the reservoir tank of master cylinder with brake fluid.
    NOTE: During the operation, keep the reservoir tank filled with brake fluid to eliminate entry of air.
  2. Disconnect the brake line at primary and secondary sides.
  3. Put a plastic bag cover on master cylinder.
  4. Slowly depress the brake pedal and hold it.
    Fig 1: Depressing Brake Pedal
    G03833005Courtesy of SUBARU OF AMERICA, INC.
  5. Close the outlet plug with your finger, and then return the brake pedal.
    Fig 2: Closing Outlet Plug With Finger And Returning Brake Pedal
    G03833006Courtesy of SUBARU OF AMERICA, INC.
  6. Repeat the step 4) and 5) several times.
  7. Remove the plastic bag.
  8. Install the brake pipes to master cylinder.

    Tightening torque: 

    Model with ABS 

    15 N.m (1.5 kgf-m, 10.8 ft-lb) 

    Model with VDC 

    18 N.m (1.8 kgf-m, 13.0 ft-lb) 

  9. Bleed air from the brake line. <Ref. to , BRAKE LINE , PROCEDURE, Air Bleeding.>
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