Q&A for How to Replace Drum Brakes

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Question

We have bled the brake system, but the pedal still fades. What is wrong?

Community Answer

If it bleeds off while you are stopped, you probably need a new or rebuilt master cylinder.

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Question

Does it matter which side the longer brake is on?

Tomcat709

Community Answer

Yes, it does! Most of the thrust to stop happens on the rear of the hub. Put the larger on the rear and the back-up pad (smaller) on the front for secure stopping.

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Question

How many times do I need to bleed the each side and how do I know when there is no more air?

Community Answer

Bleed the brakes utntil the fluid runs clear and you see no more air bubbles. Do this with your engine off.

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Question

How do I compress the rear cylinder?

Community Answer

Remove the cap from the master cylinder and squeeze both sides of the rear cylinder towards each other using as much pressure as you can.

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Question

Why would asbestos be used in brake pads?

Community Answer

Back before people understood that asbestos was harmful, it was used for many things because it is a natural fire retardant and it handles heat very well.

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Question

Is there a lead pad on drum brakes?

Community Answer

Mostly, yes. It is the shoe with the longest strip of braking material facing towards the front of your vehicle.

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Question

Does it matter if the longer brake pad is in the front or back?

Community Answer

Yes, you want the longer shoe to be towards the rear and the smaller shoe installed towards the front.

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Question

Can I replace a boat trailer with brake drums to a hub without brakes?

Community Answer

It depends how heavy your boat is, but common sense says this is a bad idea if you need a braking trailer.

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