no power assist with Z3 rack

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  • Torkey
    Noobie
    • Sep 2017
    • 7
    #1

    no power assist with Z3 rack

    The car is an e30 with a M50 engine swap. Previous owner put in a Z3 rack and deleted the power steering. Love the Z3 ratio but very tiring to drive for long track sessions.
    I installed a M50 power steering pump and connected the resevoir, rack, bled the system and no power steering. Thinking that maybe the rack was damaged from years of running with no fluid circulating, I put in a new rack. Still no power steering. Have bleed the system by turning lock to lock countless times.
    What could be the problem here?
    Tags: None
    • e30s50dan
      R3VLimited
      • Nov 2008
      • 2076
      #2
      Was there a lot of bubbles in the reservoir?
      NASA
      BMWCCA member
      PCA member 25yrs




      1991 318IS slick top
      1997 M3 sedan
      2001 325CI DD

      “whoever turns the wheel the least, wins"

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        • e30sh
          Mod Crazy
          • Apr 2015
          • 618
          #3
          Are you sure the PS pump is good? You did add a belt lol?

            Comment

            • MR E30 325is
              No R3VLimiter
              • Dec 2008
              • 3299
              #4
              Originally posted by e30sh
              Are you sure the PS pump is good? You did add a belt lol?
              I wanted to ask the belt question too, but didn't feel like being a jerk. Haha
              My previous build (currently E30-less)
              http://www.r3vlimited.com/board/showthread.php?t=170390

              A 2016 Toyota Tacoma TRD 4x4 Offroad in Inferno is my newest obsession

                Comment

                • Torkey
                  Noobie
                  • Sep 2017
                  • 7
                  #5
                  Yes... I installed the belt and the pulley :p
                  I did see large bubbles when bleeding the system initially. Now there are smaller bubbles when car is running and turning wheel lock to lock.
                  Last edited by Torkey; 12-06-2017, 03:36 PM.

                    Comment

                    • e30sh
                      Mod Crazy
                      • Apr 2015
                      • 618
                      #6
                      Any chance you got the hoses backwards?

                        Comment

                        • Torkey
                          Noobie
                          • Sep 2017
                          • 7
                          #7
                          Originally posted by e30sh
                          Any chance you got the hoses backwards?
                          the hoses are on correctly. but your comment reminded me of a video I saw where someone put them on backwards.

                          https://www.youtube.com/watch?v=V4tyYhspPkc

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