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Glad To Be Here
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2,240 Posts
Discussion Starter · #1 ·
I've got a question that I should know the answer to.

I'm just not sure so I'm posting it here.

I've installed hydraulic brakes many times and had no problem in bleeding them. None had a power booster though.

On my new project I am installing disc brakes all around and am using a dual diaphram booster/MC combo. It is mounted below the floor.

Here's the question. Do I bleed this system the same way as one without a booster? Will the pumping of the pedal mess up the booster when there is no vacuum on it?

I just don't want to mess the booster up before I get to try out the brakes.

Another question.

Does the adjustable proportioning valve (for the rear brakes) get installed in the line before or after the 2psi residual valve? I have seen diagrams showing it both before and after the residual valve.

Thanks in advance.
 

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Administrator
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18,635 Posts
You won't hurt the booster.

One thing I have been wondering though. Does your MC have to be higher than your calipres? I would think that gravity would cause it to overflow if it is lower.
 

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Tazz
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2,048 Posts
buy a vaccum bleeder pump

I got tired of the pump and hold method.......the pump isn't that expensive. There are books on making up new brake setups, the book isn't expensive either.


Tazz


Rat Rods Rule!
 
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