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Oil spray from exhaust? S70

posted by  MFahsel on  Sun May 20 09:12 CST 2012
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last visit: Sun Jun 10 15:20 CST 2012
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There is a stain behind my parking space that clearly indicates that I have a fine mist of oil spraying out of my exhaust. My 1999 S70 T5 has 205,000 miles and seems to run fine. I have not noticed any smoke coming from the exhaust. What could cause this issue? Bad Turbocharger?








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    Oil spray from exhaust? S70

    posted by  KlausC on  Sun May 20 10:12 CST 2012
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    last visit: Fri Oct 24 10:15 CST 2014
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    Oil vapors condensing in the muffler can come from the turbo or valve guide seals, among other places. The Mitsubishi turbos and not known for blowing up like the 700/900 turbos, but are notorious for wearing out the rubber seals which allows oil to enter the air intake.

    My 1967 does the same thing without a turbo! With 300K, I suspect the valve seals are the problem and I will do absolutely nothing about that.

    Klaus
    --
    My name is Klaus and I am a V ♂ lv ♂ holic








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      Oil spray from exhaust? S70

      posted by  MFahsel on  Sun May 20 13:15 CST 2012
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      last visit: Sun Jun 10 15:20 CST 2012
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      How would you expect the situation to progress if it is the rubber seals in the turbo going bad? Should I just let this issue ride for a while to see how things progress? I'm checking the oil fairly regularly and haven't notice any significant decrease in the oil level. Thanks for you response.








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        Oil spray from exhaust? S70

        posted by  KlausC on  Sun May 20 14:37 CST 2012
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        last visit: Fri Oct 24 10:15 CST 2014
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        If you find yourself idling a lot or taking short cold engine trips, it will continue to bubble oil out of the exhaust. I expect you are probably 1 quart down between oil changes, which isn't bad. To keep the oil off the driveway, don't gun the engine while it is cold and still in the driveway.

        The turbos can be rebuilt, kits are $150-200, labor is extra if you don't DIY. Valve stem seals are going to cost around $800-1500.

        Klaus
        --
        My name is Klaus and I am a V ♂ lv ♂ holic







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