Clutch Pressure Problems. Need help ASAP (Its my daily)

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  • AsharC
    E30 Mastermind
    • Jun 2011
    • 1508

    #1

    Clutch Pressure Problems. Need help ASAP (Its my daily)

    Hey guys,

    Lately its been hard for me to get my car into gear, so I figured it was either my master or slave. I replaced my slave, no luck. Then went on to the master and saw the pedal bracket was cracked. Replaced all the bracket and the master.

    Now here is the real issue, I went through the whole bleeding process where there is a pump at the bottom and the air bubbles are all pushed to the top. With all that out of the way, the pedal is soft, and it wont go into gear. Kept pumping the pedal, it would get stiff, not enough to get into gear. If I hold the pedal for about 5-10 seconds it loses all its pressure.

    What can it be?

    Thanks
    Ashar
    Last edited by AsharC; 01-11-2013, 10:44 PM.


    BUY MY WHEELS! BBS E50s!!
    http://www.r3vlimited.com/board/showthread.php?t=275407

    Originally posted by Lurker27
    Any man will tell you being blown is better than being stroked.
  • jlevie
    R3V OG
    • Nov 2006
    • 13530

    #2
    Did you use a new master & slave, or used parts? The loss of pressure when holding pressure on the pedal means a leak some where.
    The car makes it possible, but the driver makes it happen.
    Jim Levie, Huntsville, AL

    Comment

    • AsharC
      E30 Mastermind
      • Jun 2011
      • 1508

      #3
      Both are brand new.


      BUY MY WHEELS! BBS E50s!!
      http://www.r3vlimited.com/board/showthread.php?t=275407

      Originally posted by Lurker27
      Any man will tell you being blown is better than being stroked.

      Comment

      • jlevie
        R3V OG
        • Nov 2006
        • 13530

        #4
        New as in brand new or new as in reman? I don't use remans for this as I've seen them "bad out of the box". Work the pedal a few times, letting it sink to the floor. Then check for leaks at the lines and slave. You can dismount the slave, clamp it shut with c-clamp to see if it is leaking on the bell housing side. If you can't find any leaks, replace the master cylinder.
        The car makes it possible, but the driver makes it happen.
        Jim Levie, Huntsville, AL

        Comment

        • AsharC
          E30 Mastermind
          • Jun 2011
          • 1508

          #5
          It is new as in brand new. I'll look for the leaks when i get back to the car.


          BUY MY WHEELS! BBS E50s!!
          http://www.r3vlimited.com/board/showthread.php?t=275407

          Originally posted by Lurker27
          Any man will tell you being blown is better than being stroked.

          Comment

          • AsharC
            E30 Mastermind
            • Jun 2011
            • 1508

            #6
            I didn't find any leaks so i'll be buying a new master soon.


            BUY MY WHEELS! BBS E50s!!
            http://www.r3vlimited.com/board/showthread.php?t=275407

            Originally posted by Lurker27
            Any man will tell you being blown is better than being stroked.

            Comment

            • KMOSES
              E30 Addict
              • May 2010
              • 591

              #7
              Had this same thing happen. Replaced the slave cylinder and then the master cylinder. It turns out that during the bleeding process before replacing the master cylinder, it was pumping rust and other crap into my new slave cylinder. Then when I installed the new master cylinder some of the crap flowed back up the line into my new master cylinder during bleeding.
              I ended up replacing everything at once and the problems went away.

              Comment

              • AsharC
                E30 Mastermind
                • Jun 2011
                • 1508

                #8
                Including the lines? Or both at the same time?


                BUY MY WHEELS! BBS E50s!!
                http://www.r3vlimited.com/board/showthread.php?t=275407

                Originally posted by Lurker27
                Any man will tell you being blown is better than being stroked.

                Comment

                • KMOSES
                  E30 Addict
                  • May 2010
                  • 591

                  #9
                  Removed the clutch master and slave cylinders, flushed line with brake cleaner, installed new clutch master and slave cylinders.

                  After everything was working I disassembled the first set of replacement master and slave, that is when I found the rust and crud and cut cup seal in the replacement master cylinder. It was a hard lesson to learn but one I will not soon forget. It sucks removing the clutch master and trying to get to that fitting that goes through the firewall!

                  Comment

                  • AsharC
                    E30 Mastermind
                    • Jun 2011
                    • 1508

                    #10
                    All the parts are coming in the AM so I'll see how it goes.


                    BUY MY WHEELS! BBS E50s!!
                    http://www.r3vlimited.com/board/showthread.php?t=275407

                    Originally posted by Lurker27
                    Any man will tell you being blown is better than being stroked.

                    Comment

                    • AsharC
                      E30 Mastermind
                      • Jun 2011
                      • 1508

                      #11
                      No luck, I replaced the master and still having these issues. The brake fluid is coming out clean so i don't think there is rust or anything.

                      I have replaced the slave about a month ago, along with the MC. Within that month, what I though was the MC was going bad. I replaced the MC, then I started to have these pressure issues. Then I went on to replacing the slave, and the problem still continues. After replacing the MC again, I still have the issues and thats where I am at.

                      I gravity bled the system.


                      BUY MY WHEELS! BBS E50s!!
                      http://www.r3vlimited.com/board/showthread.php?t=275407

                      Originally posted by Lurker27
                      Any man will tell you being blown is better than being stroked.

                      Comment

                      • KMOSES
                        E30 Addict
                        • May 2010
                        • 591

                        #12
                        I don't think a gravity bleed will not work for this. I had a hell of a time with me under the car and someone pumping the clutch pedal. What worked the best was a strap clamp I made that restricts the slave cylinder shaft movement so it can be bled while hanging under the car. This allows the bleeder port to be the highest point of the slave cylinder. Materials needed;
                        2) 5" long 5/16-18 bolts and 4 5/16-18 nuts
                        1) 5" x 1 x 3/8" piece of steel

                        Drill two 3/8" holes in the steel the same distance apart as the slave cylinder mounting holes. Insert the 5/16-18 bolts through the slave cylinder mounting holes and one nut on each bolt. Insert the bolts through the bolt holes you just drilled. Install the other nuts and tighten so the metal plate is even with the slave cylinder mounting surface. Now the clutch circut can be bled with the slave cylinder hanging down and the bleed port pointing up. The metal plate will retain the slave cylinder shaft.

                        Comment

                        • AsharC
                          E30 Mastermind
                          • Jun 2011
                          • 1508

                          #13
                          I am very limited to supplies and transportation. I am dorming at my college, and none of my roommates have cars and my car doesn't move. I also don't have any special tools other then a craftsmen tool set.

                          I'll see what I can find. In the mean time I ordered a new hard line from the master to the slave and a SS slave line, just in case any of them were leaking.


                          BUY MY WHEELS! BBS E50s!!
                          http://www.r3vlimited.com/board/showthread.php?t=275407

                          Originally posted by Lurker27
                          Any man will tell you being blown is better than being stroked.

                          Comment

                          • AsharC
                            E30 Mastermind
                            • Jun 2011
                            • 1508

                            #14
                            I am very limited to supplies and transportation. I am dorming at my college, and none of my roommates have cars and my car doesn't move. I also don't have any special tools other then a craftsmen tool set.

                            I'll see what I can find. In the mean time I ordered a new hard line from the master to the slave and a SS slave line, just in case any of them were leaking.


                            BUY MY WHEELS! BBS E50s!!
                            http://www.r3vlimited.com/board/showthread.php?t=275407

                            Originally posted by Lurker27
                            Any man will tell you being blown is better than being stroked.

                            Comment

                            • jlevie
                              R3V OG
                              • Nov 2006
                              • 13530

                              #15
                              If the master cylinder and slave are good, there are no leaks, and the soft lines are good you can self-bleed the system. Grab the clutch pedal and pump it 75-100 times. If the clutch pedal is still soft the master cylinder could be bad or the clutch could be bad.
                              The car makes it possible, but the driver makes it happen.
                              Jim Levie, Huntsville, AL

                              Comment

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