Power steering pump - Rebuild?

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • europeanme
    S2Forum Possessed
    • Oct 2005
    • 3817
    • Country: United Kingdom

    #1

    Power steering pump - Rebuild?

    Has anyone rebuilt a power steering pump?...as I cannot find any info on etka regarding rebuild kits....Can it be done or is it a case of buy a new one....
    thanks audi.

    any help/BTDT's appreciated...

    cheers
    Mike
  • Jamo
    Retired OG Mod
    • Mar 2004
    • 21750
    • Country: United Kingdom

    #2
    Its already in guides and top tips as a sticky http://www.s2forum.com/forum/showthread.php?t=8634

    Comment

    • Lloyd
      S2Forum Extremist
      • Apr 2006
      • 1559
      • Home: Wales Current: England

      #3
      RS2+ (now sold...)

      Comment

      • europeanme
        S2Forum Possessed
        • Oct 2005
        • 3817
        • Country: United Kingdom

        #4
        cheers guys...I must try harder during my searches....

        Comment

        • AndyP
          S2Forum Zealot
          • Feb 2004
          • 6049
          • Country: England

          #5
          If you don't want to do it yourself, get in touch with Phil Payne, he's done 100's and is very reasonable on price. You might want to check that the seal kit is still available from Audi, pretty sure it's NLA I'm sure you can get them direct from ZF though.



          He's in Sheffield, so if you need it dropping off, let me know
          sigpic
          1991 Audi S2 3B - 2.5 Stroker engine
          1997 A6 2.5TDi quattro avant - C4
          1976 RD250E / 350LC cafe racer

          Comment

          • europeanme
            S2Forum Possessed
            • Oct 2005
            • 3817
            • Country: United Kingdom

            #6
            Originally posted by AndyP
            If you don't want to do it yourself, get in touch with Phil Payne, he's done 100's and is very reasonable on price. You might want to check that the seal kit is still available from Audi, pretty sure it's NLA I'm sure you can get them direct from ZF though.



            He's in Sheffield, so if you need it dropping off, let me know
            Andy, I will take you up on your offer.....I don't suppose you know how long it would take to do?....

            Comment

            • Error404
              Super Moderator
              • Mar 2007
              • 19789
              • Country: United Kingdom

              #7
              Whats up with it Mike?
              My observations of the knackered few that I have stripped recently with my PAS obsession have had excessive end float and worn bearings, obviousy a new seal kit won't fix that!
              Panthero Coupé quattro 20vt
              Indigo ABY coupé
              Imola B6 S4 Avant

              Comment

              • LHD_Kid
                S2Forum Possessed
                • May 2006
                • 3696
                • Home: England Current: Belgium

                #8
                Originally posted by Error404
                Whats up with it Mike?
                My observations of the knackered few that I have stripped recently with my PAS obsession have had excessive end float and worn bearings, obviousy a new seal kit won't fix that!
                Presumably, it would be possible to shim for the end float and to get some sort of replacement bearing in there while doing the seals?

                Has anyone tried it?

                I've got one I really want to make 100%

                Chris
                Honda CBR 1100XX Blackbird Turbo....undergoing major changes.....
                S2 Coupe... bit easier off the line...
                '03 ZX12-R daily hack.... lots of nice bolt ons...

                Comment

                • Avantus
                  S2Forum Maniac
                  • Sep 2007
                  • 941
                  • Country: Belgium

                  #9
                  Sorry to bring this old thread back up, but what amount of end float is acceptable on our PAS pumps?
                  I can rock my pulley back and forth for about one mm, with an obvious click clack.

                  I've got a pump that seems to get tired after a bit of cornering, falling away and then even not having enough 'power' to assist on standstil... hence my question.
                  It's a "rebuilt" ebay.de one I bought last year.

                  Comment

                  • Error404
                    Super Moderator
                    • Mar 2007
                    • 19789
                    • Country: United Kingdom

                    #10
                    My guess is about 0.1mm would be plenty.
                    If you run out of assistance with quick steering input, like the steering goes hard during a quick S-bend then you have a problem with insufficient fluid flow from the pump.
                    Panthero Coupé quattro 20vt
                    Indigo ABY coupé
                    Imola B6 S4 Avant

                    Comment

                    • Avantus
                      S2Forum Maniac
                      • Sep 2007
                      • 941
                      • Country: Belgium

                      #11
                      Meaning pump is failing, or blocked hoses?
                      Or the rack... Aargh

                      Comment

                      • Error404
                        Super Moderator
                        • Mar 2007
                        • 19789
                        • Country: United Kingdom

                        #12
                        it could be pump or the rack. There is not enough volume of fluid passing through the rotary valve in the rack. Either the pump isn't producing enough, or the rack is loosing it through its seals. My money would be on the pump.
                        You can strip the pump and check that the vanes are not worn out and what the clearance is between the vanes and the back-plate - I don't have a spec on that but it should be tight. You can also check that the flow control valve is not sticking, although i think that is highly unlikely.

                        Have you checked the belt tension BTW? Slipping bet could easily cause this
                        Panthero Coupé quattro 20vt
                        Indigo ABY coupé
                        Imola B6 S4 Avant

                        Comment

                        • Avantus
                          S2Forum Maniac
                          • Sep 2007
                          • 941
                          • Country: Belgium

                          #13
                          Thanks for the info

                          The belt-tension is correct. It's exactly that losing of assistance combined with a grinding noise that i get at quick changes and lots of cornering.
                          It was a recon'd ebay pump however... might be failing again then. Any way to check the rack for leaking seals?

                          Comment

                          • Error404
                            Super Moderator
                            • Mar 2007
                            • 19789
                            • Country: United Kingdom

                            #14
                            not really you need special gear for that, only a power steering re-builder will have this equipment i think.
                            Panthero Coupé quattro 20vt
                            Indigo ABY coupé
                            Imola B6 S4 Avant

                            Comment

                            • Avantus
                              S2Forum Maniac
                              • Sep 2007
                              • 941
                              • Country: Belgium

                              #15
                              Okay. Bit hard to guess. The pump doesn't make any strange noises, but the assistance that's falling away must come from somewhere
                              I also noticed that at a standstill it mostly goes well lock to lock, but the last half turn either side loses assistance ... strange

                              Comment

                              Working...