Schematic for 3B vacuum hoses

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

    #1

    Schematic for 3B vacuum hoses

    Has anybody got a schematic of where all the vacuum hoses go on a 3B engine??

    Basically we started doing some work on the S2 project car this week and it seems nearly all the vacuum lines are cracked or broken or not connected. There are 3 that tap into the inlet manifold just below the throttle body, now I think(?) that one goes to the fuel pressure regulator, one to the ECU and the other to the WGFV, could do with some confirmation of this as one of them has a 'T' piece in and I'm not sure what that feeds.

    I've bought a load of vacuum line from GSF and the plan is to replace all the vacuum line if I can work out where they all go
    sigpic
    1991 Audi S2 3B - 2.5 Stroker engine
    1997 A6 2.5TDi quattro avant - C4
    1976 RD250E / 350LC cafe racer
  • jon_91_s2
    S2Forum Addict
    • May 2004
    • 253
    • Home: England

    #2
    I think that the one nearest to the battery(best way I could think to describe it) goes to the dv, the centre one to the fuel pressure regulator, the one on the right to the ecu. Might of got the second 2 the wrong way round. Im at work at the mo and my car is sat at home leaking coolant so cant have a look.

    Sure someone else will know for sure.

    Sorry not much help Andy but i tried.

    Cheers.
    Jon

    91 3b S2

    Now Sold

    Comment

    • jon_91_s2
      S2Forum Addict
      • May 2004
      • 253
      • Home: England

      #3
      Someone must be able to have a better stab at this than me.
      Jon

      91 3b S2

      Now Sold

      Comment

      • jon_91_s2
        S2Forum Addict
        • May 2004
        • 253
        • Home: England

        #4
        Andy, just had a look under the hood of mine. Its a bit difficult to see but I can post a pic with a slightly better explanation if thats any help. Or you could phone me and I could describe it.
        Jon

        91 3b S2

        Now Sold

        Comment

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

          #5
          Cheers John, I think I have enough information from your first post, besides I don't think I can make it run any worse than having none of them connected
          sigpic
          1991 Audi S2 3B - 2.5 Stroker engine
          1997 A6 2.5TDi quattro avant - C4
          1976 RD250E / 350LC cafe racer

          Comment

          • jameswkr
            S2Forum Maniac
            • Jul 2003
            • 538
            • Country: United Kingdom

            #6
            Do a forum search. Paul Nugent posted a drawing showing exactly what is connected to where.

            Comment

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

              #7
              I have been searching for that but I can't find it. I think I've got it sorted now but the drawing would still be handy if anybody knows where it is.
              sigpic
              1991 Audi S2 3B - 2.5 Stroker engine
              1997 A6 2.5TDi quattro avant - C4
              1976 RD250E / 350LC cafe racer

              Comment

              • S2central.net
                Retired OG Mod
                • Jul 2003
                • 16590
                • Country: Northern Ireland

                #8
                I have it at home - send me a PM to remind me... I also cannot find it here !

                Paul
                Paul Nugent
                Webmaster http://S2central.net
                Administrator http://S2forum.com

                1994 S2 Coupe ABY - aka Project Lazarus
                2001 A6 allroad 2.5TDi - family tank
                2003 S4 Avant 4.2 V8 - daily burble

                Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

                There are only 10 kinds of people that understand binary - those that do, and those that don't

                Comment

                • Billman
                  S2Forum Freak
                  • Nov 2004
                  • 4129

                  #9
                  I want it too if you can paul!
                  Go Holset or Go RS4

                  Comment

                  • jameswkr
                    S2Forum Maniac
                    • Jul 2003
                    • 538
                    • Country: United Kingdom

                    #10
                    Search using "vacuum tree" - its the 3rd thread shown...............

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