Reply to "Mastervac and brake issue."

panteradougMember

You should investigate if the brake pedal return speed is normal or abnormal at this point with everything apart.

I am thinking that the pedal may need the normal pressure in the system to help it return correctly?

Disc brake system designs do not have fluid "check valves" in the system to prevent the fluid returning to the master and the pistons return to their starting positions when the pressure is relieved by releasing the brake pedal. Drum brake systems do. So that likely seems to me that there is a back flow of fluid to the master and therefore reverse pressure to the pedal to aid in it's complete return?

I personally have never looked at that function nor do I ever remember anyone discussing that in analyzing the system operation?

Are you using a proportioning valve in your system?

3/31/245:44 AM

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