Bronco II Rear Brake Problem

There is a proportioning valve on the system that prevents rear brake lock up so you don't do 360's every time you jam on the brakes. You should still feel some drag though.

Some of these valves have a pin in the end that needs to be held stationary when you bleed the brakes to get the air out. If you can get the pedal to the floor, I would suspect air in the system.

What kind of shape is the flex hose from the rear to the body? Maybe it has ballooned out?

Mike

I'll check the flex hose, about this valve, can you give detail of where to find/locate it? Kind of a newbie to drum break work.

Thank you,

Mike Roma> There is a proportioning valve on the system that prevents rear brake

It should be just down below the MC on the frame. If you follow the brake lines from the Master, they will lead to it. It should have a rubber button you pull off to see the pin. Some have a pin that comes out as you push the pedal, some that suck in and I have seen some with no pin. There are special tool to clip onto it to hold it steady, but I usually manage with pump pliers or vise grips. Once I used a penny over it with a hose clamp holding the penny. That was a push out pin.

The only way I know to lock up the rear drum brakes is to use my emergency brake. Watch out where you try that, make sure you have room.... You can spin out amazingly fast.

Mike

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