Bench Bleeding

For additional information see Bench Bleeding Notes. Fundamentals and Basics

Fig 2 Cast Iron Master Cylinder (Top View):

Fig 3 Cast Iron Master Cylinder (Exploded View):

NOTE: Before installing the master cylinder on the vehicle it must be bled on the bench using the following procedure:

1. Clamp master cylinder in vise and attach bleeding tubes.
2. Fill both reservoirs with approved brake fluid.
3. Using a brass rod or wooden dowel, depress push rod slowly and then allow pistons to return under pressure of springs.
4. Repeat several times until all air bubbles are expelled.
5. Remove bleeding tubes from cylinder, plug outlets and install gasket and cover.
6. Install cover clamp.
7. Remove from vise and install master cylinder on vehicle.