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Old 04-17-2012, 04:48 PM
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Brake help!!

I'm building a '39 Ford two door sedan channeled over an S10 frame. I got a '78 Malibu master cylinder, manual brakes. This is supposed to work according to the weight of the car and disc brakes. I also got a Wilwood adjustable proportioning valve. I ran the rear compartment of the master cylinder to the front of the prop valve to the front brakes, the front compartment to the rear of the valve to the rear brakes. I have no front brakes! What have I done? I have no pedal for about half the way down and then it gets hard. Also, when I take the top off the reservoir, as soon as I hit the pedal, fluid comes up out of the front reservoir. What's up with this? Thanks in advance, Rod

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Old 04-17-2012, 05:14 PM
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Quote:
Originally Posted by raj4851
I'm building a '39 Ford two door sedan channeled over an S10 frame. I got a '78 Malibu master cylinder, manual brakes. This is supposed to work according to the weight of the car and disc brakes. I also got a Wilwood adjustable proportioning valve. I ran the rear compartment of the master cylinder to the front of the prop valve to the front brakes, the front compartment to the rear of the valve to the rear brakes. I have no front brakes! What have I done? I have no pedal for about half the way down and then it gets hard. Also, when I take the top off the reservoir, as soon as I hit the pedal, fluid comes up out of the front reservoir. What's up with this? Thanks in advance, Rod
Do you not have a distribution block ? The line should come out of the back reservoir to the (IN) side of the proportioning valve then a line from the (OUT)side of the valve to the back of the distribution block which will allow for the front and rear brake pressure to be adjusted with the valve.JMO



Cole
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Old 04-17-2012, 07:58 PM
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check here for some help.
Also do a search on this forum for no brakes as this comes up a lot. http://www.mpbrakes.com/technical-su...leshooting.cfm
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Old 04-17-2012, 08:14 PM
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I was just stating in my other post how mine is hooked up on my car and it works fine.




Cole
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Old 04-17-2012, 08:30 PM
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prop valve

Hi guys, and thanks for the replies. I ran the line from the rear of the master cylinder to the "front in" port of the prop valve. I ran the line from the front of the cylinder to the "rear in" port of the prop valve. I thought master cylinders always fed the front brakes from the rear compartment and rear brakes were fed from the front. Is this correct? Upon further checking, there is no fluid disturbance in the rear portion of the master cylinder. I think I have a bad cylinder. Thanks again, Rod
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