smoke from audi s2 exhaust manifolds

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  • Markmark
    S2Forum Buff
    • Mar 2020
    • 27
    • Country: Italy

    #1

    smoke from audi s2 exhaust manifolds


    hello everyone any help? I don't understand where it leaks oil from to make a lot of smoke and a burning smell from the side of the exhaust manifolds, the only thing I noticed a small drop from the turbine vent
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  • S2_avant 19930325
    S2Forum Maniac
    • Mar 2019
    • 648
    • Country: Sweden

    #2
    Hello , could you resend the picture ? Have you draw something with black line ? One drop can smoke pretty good.

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    • Markmark
      S2Forum Buff
      • Mar 2020
      • 27
      • Country: Italy

      #3

      hi I have a video but I can't upload it when the machine heats up smoke comes from the collectors / turbine head gasket and various manifold valve cover gaskets etc. are all new as soon as they are assembled

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      • S2_avant 19930325
        S2Forum Maniac
        • Mar 2019
        • 648
        • Country: Sweden

        #4
        try to put it on youtube and post the link .. if you have assembeld everything and yiu hade oily fingers ,, the oil smoke will disappear

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        • Tractor Dave
          S2Forum Zealot
          • Dec 2017
          • 5983
          • Country: Wales

          #5
          Have you driven it yet (after rebuild)? Any oil and grease on new parts takes a while to burn off.
          Nothelle S2 Avant
          Black Ur project
          Silver Rs2 Project gone
          Ocianic Ur project gone
          S2 Coupe project gone
          Urs6 plus project gone

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          • SteveH
            Super Moderator
            • Jul 2003
            • 4460
            • Country: United Kingdom

            #6
            It could be a leak from the oil feed or drain from the turbo or possibly a leak from the cam cover. Failing that, it's just burn off if you have rebuilt that side of the engine recently.
            91 Modded 3B
            14 A6 Avant Black Edition

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            • Markmark
              S2Forum Buff
              • Mar 2020
              • 27
              • Country: Italy

              #7

              it's not clear, it seems to derive from the turbo exhaust when the car is in motion

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              • SteveH
                Super Moderator
                • Jul 2003
                • 4460
                • Country: United Kingdom

                #8
                Has the turbo been rebuilt? If it's the original the shaft seals may be on their way out
                91 Modded 3B
                14 A6 Avant Black Edition

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                • Markmark
                  S2Forum Buff
                  • Mar 2020
                  • 27
                  • Country: Italy

                  #9
                  rebuilt 800 km ago with internal shaving and bearing

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                  • Markmark
                    S2Forum Buff
                    • Mar 2020
                    • 27
                    • Country: Italy

                    #10

                    Is it possible that a gasket is missing from the turbine oil drain pipe? it could leak from there when you accelerate

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                    • newsh
                      S2Forum Obsessed
                      • Aug 2003
                      • 16226
                      • Country: United Kingdom

                      #11
                      Yes, or either the feed or drain flange has been over tightened and is bent .

                      S2 Coupe 3B Project


                      Ur quattro restoration

                      S2 Avant

                      Boost is the new rock and roll!
                      sigpic

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                      • LSG
                        S2Forum Maniac
                        • May 2010
                        • 897
                        • Country: United Kingdom

                        #12
                        Someone hasn't put nyloc nuts on the exhaust manifold and the nylons smoking as its melting. Just a thought !.

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                        • simons2
                          S2Forum Addict
                          • Mar 2010
                          • 344
                          • Country: United Kingdom

                          #13
                          I put nylocs on my waste gate , burnt the nylon off pretty quickly , lol

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                          • Markmark
                            S2Forum Buff
                            • Mar 2020
                            • 27
                            • Country: Italy

                            #14

                            I found a large oil leak from here, for the rest I find nothing and how I use it and I take a ride the smoke is always a lot
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                            • LSG
                              S2Forum Maniac
                              • May 2010
                              • 897
                              • Country: United Kingdom

                              #15
                              You should not be getting oil comeing out off there !. If oil is in your compressure houseing its going to be in your intercooler. You will have to clean ever thing out on the cold side off your turbo. Get the Turbo unit checked out coz it could be a seal that failed and letting oil past into the housing. Did the old turbo fail ?. Maybe this unit is ok and what your seeing is oil and smoke from the old turbo failing that is in the intercooler ect.

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