boost leak

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  • johnny boy
    S2Forum Enthusiast
    • Mar 2004
    • 136
    • Country: United Kingdom

    #1

    boost leak

    hi guys i still seem to have a crazy boost leak after doing a pressure test ang swaping the WGFV there still seems to be a massive wooshing noise under load and we can not pin point it ,it is anly holding 10 psi can any one help please , i have done up all the jublie clips to no provail cheers johjnny
  • s2avant95M
    S2Forum Extremist
    • Mar 2004
    • 1217
    • Home: England Current: United States

    #2
    have you checked the intercooler, mine leaked from there, and im not talking about the o-ring, the actual intercooler was compramised in several places.
    Tim

    1995 S2 Avant, ruby red - ** SOLD TO ROSS **
    Golf Rallye G60 ** SOLD **
    Golf MK2 Oaky with R32 engine
    Audi A6 Avant 1.9 TDi 130
    Golf MK2 8v Race car

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    • quattronutter
      S2Forum Maniac
      • Jan 2005
      • 690
      • Country: United Kingdom

      #3
      try soaking it in soapy water to see if you get any bubbles when the intercooler is pressurised...

      Comment

      • BRY
        S2Forum Possessed
        • Nov 2004
        • 3755
        • Home: United Nations Current: Vietnam

        #4
        No pressure loss from the MAF hose through the turbo, intercooler,and back.
        What are the effects of a dead / leaking wastegate?
        Where can it leak from?
        Kingdoms are run by Kings, Dictatorships are run by Dictators.
        England must be a Country. :mischeif:

        Comment

        • quattronutter
          S2Forum Maniac
          • Jan 2005
          • 690
          • Country: United Kingdom

          #5
          wastegate diaphgram?

          Comment

          • Chris M
            S2Forum Extremist
            • Sep 2003
            • 1030
            • Country: United Kingdom

            #6
            It could be worth checking all the boost gauge hoses.

            Cheers,

            Chris
            Cheers,

            Chris

            Silver S2 Avant : Sold

            Comment

            • quattronutter
              S2Forum Maniac
              • Jan 2005
              • 690
              • Country: United Kingdom

              #7
              it might be split,ive had similar problems before,it may hold a certain amount of pressure then leak through the diaphgram

              Comment

              • martinjs
                S2Forum Possessed
                • Jul 2003
                • 3205
                • Country: England

                #8
                What pressure did you test it to Johnny? it may be a very small leak which makes itself present over 10psi or so. did you remove and inspect all the hoses?
                I know how you feel, boost leaks are a real PITA.

                Comment

                • BRY
                  S2Forum Possessed
                  • Nov 2004
                  • 3755
                  • Home: United Nations Current: Vietnam

                  #9
                  He is taking it for Doug to look at in the morning.
                  Kingdoms are run by Kings, Dictatorships are run by Dictators.
                  England must be a Country. :mischeif:

                  Comment

                  • Doug_RS2
                    S2Forum Possessed
                    • Jul 2003
                    • 3847
                    • Home: Scotland Current: England

                    #10
                    3 problems!

                    Boost Leak!

                    A collapsed silicon vacuum line to the ecu - you really should use the reinforced hose rather than plain silicon vaccum line - it kinks too easily.

                    And a duff WGFV that was swapped in during fault finding - at least BRYs car might be back up to full boost Worth checking your car if you didn't notice the difference.

                    All fixed and you get a happy Johnny
                    S2,RS2,S4 WB,RS4,S4 B8,RS6 C5,RS6 C6,R8

                    Comment

                    • johnny boy
                      S2Forum Enthusiast
                      • Mar 2004
                      • 136
                      • Country: United Kingdom

                      #11
                      hell yea well pleased with the car being fixed a massive thanks to all you boys , the car is running well and is now stopping just as well .. cheers johnny

                      Comment

                      • audiman
                        S2Forum Freak
                        • Jul 2003
                        • 4827
                        • Country: United Kingdom

                        #12
                        That fooking WGFV!!!!! Doug tried to give it to me!! I have now binned it!!
                        sigpic
                        Tom C - www.rcmr.co.uk
                        Audi UR Quattro
                        Audi 100 C3 2.0 5 cyl 115ps
                        Audi S2 - 07k engine project aiming for 800ps
                        Audi B5 RS4 645ps 911nm

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