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oil leaking out the exhaust 700

posted by  daveb272 on  Sun Apr 10 06:14 CST 2005
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i noticed oil under the car, all over the back deck lid. its not blowing smoke, but it is very wet oil. Is this a sign of a bad turbo seal?
--
85 740 b230f+t








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    oil leaking out the exhaust 700

    posted by  DaJet on  Sun Apr 10 11:47 CST 2005
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    last visit: Tue Jul 3 10:50 CST 2007
    [RELATED]

    My car looked like that when I blew the rear housing seal & bushing on the Auto tranny... when u look close the oil has a reddish tint to it. however, may look brownish on the yellow paint background...

    JJ








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      oil leaking out the exhaust 700

      posted by  mcduck on  Sun Apr 10 12:09 CST 2005
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      last visit: Sun Sep 9 11:47 CST 2012
      [RELATED]

      Yeah: looks just like when I overfilled the AW71.








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        oil leaking out the exhaust 700

        posted by  daveb272 on  Sun Apr 10 13:59 CST 2005
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        i wish it was that simple, my wife gave it some gas as i put my had close to the tailpipe, as soon as she reved it up, just a little bit, the oil shot on to my hand. Its definatley coming out of the exhaust.
        --
        85 740 b230f+t








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          oil leaking out the exhaust 700

          posted by  c_j_mooney on  Sun Apr 10 16:56 CST 2005
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          last visit: Wed Sep 14 17:39 CST 2011
          [RELATED]

          Are you certain that's oil? Here's why I ask: any oil introduced into the exhaust system will come either from the combustion chamber or from the turbo. In either case the exhaust gas temperature will be high enough to burn it, hence the cloud of blue/grey smoke that'll obscure the cars behind you. So it seems nigh impossible that it's oil - there's no other entry point into the exhaust system other than where it'll be burned. However a byproduct of combustion is water, which will condense in your exhaust system & pick up particles of carbon. This is particularly pronounced with short trips. If the drains in your muffler/resonator are plugged, or if there aren't any drains, those short trips will cause moisture to accumulate without generating enough heat to evaporate it. So enough water sits there, mixing with carbon in the exhaust, till one starts the car & the black, soot-filled water gets blown out with the exhaust before it gets hot enough to vaporize.
          --
          Chris, Dartmouth NS Canada 70 M-B 280SE, 83 245DL, 84 244 turbo, 90 780 turbo, 92 VW Golf








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            oil leaking out the exhaust 700

            posted by  daveb272 on  Sun Apr 10 23:21 CST 2005
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            that is truely possible., i did just start it up. the only problem with that is there was very little oil in the oil pan. that doesnt explain where it went. it has never burned oil like that before.
            --
            85 740 b230f+t








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    oil leaking out the exhaust 700

    posted by  mcduck on  Sun Apr 10 06:53 CST 2005
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    last visit: Sun Sep 9 11:47 CST 2012
    [RELATED]

    No, it's a sign of an external oil leak; the sign of bad turbo seals is a cloud of greyish smoke following you.
    A common leak point is the oil separator box under the intake manifold; others are the front seals and the distributor.








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      oil leaking out the exhaust 700

      posted by  daveb272 on  Sun Apr 10 07:09 CST 2005
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      here is what the back of my car looks like with the oil all over it.. Its deffinatly coming out of the exhaust.
      --
      85 740 b230f+t









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        oil leaking out the exhaust 700

        posted by  someone claiming to be Ivan on  Mon Apr 11 00:34 CST 2005 [RELATED]

        You have blown turbo seals, and or stuck exhaust valve(s)
        with blow by.
        Sorry !







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          update 700

          posted by  daveb272 on  Mon Apr 11 10:11 CST 2005
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          i crawled under the car to find the rear main out of place, the leak has been found. may have been the carbon coming out of the exhaust.i cant wait till i get my new 2.5" pipes.
          --
          85 740 b230f+t








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            update 700

            posted by  someone claiming to be Ivan on  Tue Apr 12 00:42 CST 2005 [RELATED]

            You gave us wrong clues.
            If the rear main seal was out of place
            you would have a major leak under the car,
            possibly going up around the trunk area.
            You said the oil was coming out of exhaust pipe ?!!!







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              update 700 1978

              posted by  daveb272 on  Tue Apr 12 14:06 CST 2005
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              sorry, didnt mean to throw you off, it was leaking both areas. i might have been wrong about the oil in the exhaust, something dark and wet cam out when i reved it up. may have been condensation and carbon. Im sorry if i mis led anyone, i was very upset when i saw the oil on the driveway and none in the pan.
              --
              85 740 b230f+t







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