Master Cylinder Bleeding

STANDARD PROCEDURE - MASTER CYLINDER BLEEDING

NOTE: It is not always necessary to bleed the entire hydraulic system after replacing the master cylinder provided that the master cylinder has been filled and properly bled prior to its installation.





1. Clamp the master cylinder in a vise using the master cylinder mounting flange. Attach Bleeding Tubes, Special Tool 8129, to the master cylinder. Position tubes so outlets of Bleeding Tubes will be below the surface of the brake fluid when reservoir is filled to the proper level.
2. Fill reservoir with brake fluid conforming to DOT 4 specifications such as Mopar or Equivalent. If DOT 4 brake fluid is not available, brake fluid conforming to DOT 3 specifications is fully compatible and can be used in its absence.
3. Using a wooden dowel, depress master cylinder slowly, and then allow pistons to return to released position. Repeat several times until all air bubbles are expelled.
4. Remove bleeding tubes from cylinder, plug outlets and install caps.
5. Remove master cylinder from vise and install on power brake booster.