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brake issues 2.0

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Old Feb 24, 2012 | 09:28 AM
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MonsterTruck\m/'s Avatar
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brake issues 2.0

So after i lost brake pressure on my 78 bronco i went looking at all of my brake parts, turns out my front left rotor and both rear drums were scratched and had grooves from the brakes being stuck after sitting for 12 years.

anyway i replaced the front left rotor cailper and brake pads on both sides,

in the rear i replaced both sides brake shoes and my left rear wheel cylinder was leaking so i replaced that also, (tried to replace both wheel cylinders but the line was stuck really good and i stripped it)

I also replaced my rear axle brake block /hose

so anyway after i fully bled the whole system in the correct order i still dont have brake pressure like i used to,..... could it be my master cylinder and or brake booster, how do I test those?
 
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Old Feb 24, 2012 | 07:38 PM
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hmm i did some research and my rear brake resivour went empty, so could my proportioning valve? also sould i do something special when bleeding to my proportioning valve?

ugh i just want to get this truck on the road again
 
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Old Feb 24, 2012 | 08:55 PM
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If the rear half of the system is leaking down, make sure you don't have a leak between the axle block that you replaced and the prop. valve or the prop. valve and the MC. I assume you bled the entire system starting at the passenger rear wheel cylinder.
 
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Old Feb 25, 2012 | 06:29 AM
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Originally Posted by greystreak92
If the rear half of the system is leaking down, make sure you don't have a leak between the axle block that you replaced and the prop. valve or the prop. valve and the MC. I assume you bled the entire system starting at the passenger rear wheel cylinder.
sorry I meant when i was working on my brake lines the rear fluid all drained out, it its not leaking now, but since i cant seem to get a firm pedal after bleeding everything twice in the correct order I am wondering if I have to do anything to the proportioning valve when bleeding
 
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