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Old Dec 7, 2006 | 06:06 PM
  #1  
pedrorairez's Avatar
pedrorairez
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Brake Issues

Having problem with my 1975 f150 1st was having problems braking pedal went all the way down to the floor so i bled the breaks had problem with rear cylinders replace those still same issues replace all brakes front pads rear shoes now some of the problems went away break are nice and tight but after a couple times going forward and reverse and braking sometime the breaks go back to the floor seems like air or calipers loosing grip anyone might know what it could be.
 
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Old Dec 7, 2006 | 06:34 PM
  #2  
arctic y block's Avatar
arctic y block
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If they are properly bled and adjusted. than i would look at the master cyl and hydro-vac
 
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Old Dec 7, 2006 | 07:02 PM
  #3  
Mil1ion's Avatar
Mil1ion
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The master cylinder needs replacing.

The rubber to cast metal on the piston allows the fluid to bypass and the pedal falls while fluid goes back to the reservoirs.

Be careful when replacing.

MC's with Stainless Steel sleeves are supposed to be a lot better than cast.

Raybestos Premium is my choice.
 
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Old Dec 7, 2006 | 09:35 PM
  #4  
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73f100shortbed
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Definitely sounds like you need a master cylinder. don't forget to bench bleed before installation.
 
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