Technical Bleeding brakes and sore toe

some times a dual master cylinder just won't get going when it's connected to the brake system...bench bleeding helps this. If you've never needed to do it, fine, consider yourself either highly skilled, or lucky.

But it does help in some cases.

 

A “master cylinder” is its own hydraulic system. It can create and release pressure by itself. If there’s air the master it can and will inject air into the lines. Releasing the plunger ****s that same air back into the master cylinder and you don’t get anywhere.

With a helper, I can bleed one quicker with 2 fingers on the car than I can doing one on the bench as the manufacturer instructions illustrate. It’s not hard either way but I can’t recall ever not having to do it.

Motorcycle, car go kart, heavy equipment, clutch, brake.

 

I bleed the brake system with a hand held vacuum pump , start at the right rear wheel then left rear and so on . Pump with bleeder screw open and when bubbles stop shut the valve .

 

Consider that if you bleed the master you may get a better pedal, instead of a good one.