big66440 Posted April 27, 2011 Author Share Posted April 27, 2011 Well here's an update I finally plugged the correct port on the distribution valve and bent a line to completely bypass the height sensing valve,thankfully no leaks I pressure bled the system the conventional way with my new proportioning valve wide open to get the most fluid and air out of the system I literally ran 2 quarts of brake fluid through each wheel without seeing a single air bubble and I know that for a fact because I used clear line,,,and still no luck just for the record I have replaced both front rubber and rear brake line(s) along with both wheel cylinders,master cylinder which I bench bled by plugging the ports if it matters,I admit I'm stumped :help: Link to comment Share on other sites More sharing options...
HOrnbrod Posted April 27, 2011 Share Posted April 27, 2011 What's your pedal like now? Link to comment Share on other sites More sharing options...
big66440 Posted April 27, 2011 Author Share Posted April 27, 2011 Still very spongy my next plan is to trace the complete system from the wheel cylinders to the master and calipers to the master just to verify any leaks,I wasn't really pleased with the bench bleeding method I used on my new master I'm used to using the barb fittings and running hoses to the chambers full of fluid is there any possible way that there may be air in the MC alone thats keeping me from fully bleeding the air out of the system?could the distribution block be at fault in any way? I'd appreciate any advice,thanks in advanced. Link to comment Share on other sites More sharing options...
HOrnbrod Posted April 28, 2011 Share Posted April 28, 2011 is there any possible way that there may be air in the MC alone thats keeping me from fully bleeding the air out of the system?could the distribution block be at fault in any way? Â I don't think so. Especially in my case when my master went dry. But I have a similar problem as you, lots of air, but the brakes are excellent and the pedal is firm just like before. Wish I knew what to tell you. :dunno: Link to comment Share on other sites More sharing options...
big66440 Posted April 28, 2011 Author Share Posted April 28, 2011 Yup Iv'e had weird things like replacing a master and not even having to bleed the whole system once bench bled and installed,but i gotta admit I'm at a blank here. Link to comment Share on other sites More sharing options...
maddzz1 Posted April 29, 2011 Share Posted April 29, 2011 This is what your dist block should look like. Â The arrow at the bottom with no words is the port you block. Â Â Lines should run like this with rear prop valve eliminated: Â Link to comment Share on other sites More sharing options...
big66440 Posted April 29, 2011 Author Share Posted April 29, 2011 Thats exactly what my set up looks like,Is there any possible way that there can be an air bubble trapped in the system between the master and either the wheel cylinders or calipers? or maybe even in the master if I didnt properly bench bleed it? Link to comment Share on other sites More sharing options...
maddzz1 Posted April 29, 2011 Share Posted April 29, 2011 Thats exactly what my set up looks like,Is there any possible way that there can be an air bubble trapped in the system between the master and either the wheel cylinders or calipers? or maybe even in the master if I didnt properly bench bleed it? Â I'm confused at how you bench bled the MC. Did you run some lines out of the MC and bend them back into the top of the MC and keep them below the fluid? Link to comment Share on other sites More sharing options...
big66440 Posted April 30, 2011 Author Share Posted April 30, 2011 Thats how I usually do it but this time I didnt have any barb fittings that fit the outlet ports to do so,so I tried a method that Raybestos claims also works in the instruction book by plugging the outlet ports pumping the master and allowing air to escape through the fluid in the chambers which I am not completely convinced worked. Link to comment Share on other sites More sharing options...
maddzz1 Posted May 1, 2011 Share Posted May 1, 2011 I would try to get the fittings you need and try doing it the regular way and see what happens then. Link to comment Share on other sites More sharing options...
MiNi Beast Posted May 5, 2011 Share Posted May 5, 2011 so did you ever figure it out yet? Link to comment Share on other sites More sharing options...
SamHdz1 Posted May 16, 2017 Share Posted May 16, 2017 I'm on the edge of my seat. I just tried bleeding brakes and didn't know about the proportion valve. Yay me. Link to comment Share on other sites More sharing options...
big66440 Posted May 16, 2017 Author Share Posted May 16, 2017 I'm on the edge of my seat. I just tried bleeding brakes and didn't know about the proportion valve. Yay me. Welcome to the forum, hows your brake pedal now? Link to comment Share on other sites More sharing options...
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