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Thread: soot on side of engine block

  1. #1
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    Default soot on side of engine block

    Wonder if anyone can help, just noticed a fair amount of soot on the turbo side of my engine, seems that exhaust gasses are leaking out under boost from somewhere beneath the turbo. no loss of performance, anyone got any ideas

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    Regular Member John35's Avatar
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    What engine have you got. Could be soot from the EGR..

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    it's the Y30DT. Had it looked at in a garage, ran a smoke test, couldn't find anything. It's very obvious the soot is being spat out at full throttle under boost. Has anyone experienced this before? I was wondering about the wastegate and whether there's a pipe underneath somewhere that's come off. all help gladly recieved.

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    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    Could be the gasket that sits between the exhaust pipe and the turbo itself that has blown. Remove the heat shield and you should see three bolts (or more, I don't remember anymore...) holding the pipe in place. HTH

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    i shall do that tomorrow, are they easy to get at from above (if you remember). It looks mighty complicated around the turbo?

  6. #6
    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    It's not the easiest job (nothing seems to be on this engine). There are 5 bolts I think, not sure if you have to remove the manifold to get to the 5th one.

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    Regular Member Critch's Avatar
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    Vehicle : vauxhall vivaro

    Trim : Basic

    Engine : 1.9

    Year : 2004

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    Take heat shield off turbo and see. As theirs a few places it could be leaking from

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    Just to complete this thread, the corrugated pipe from the turbo to the egr had split. i've owned this car for over year and could never get more than 35mpg, now i'm getting an easy 40 driving it hard, 45 taking it easy. amazing.

  9. #9
    Regular Member Celes's Avatar
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    Vehicle : Opel Signum

    Trim : Sport

    Engine : 3.0 CDTI

    Year : 12/03

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    How much did you pay to get it changed mate? Labour and parts Was it an obvious split or small one?

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    split was on the underside of the pipe, so only visible when removed. it was quite big, about half the circumferance of the pipe. Part was 70, labour was another 60, not so bad for the result.
    Last edited by jonestown; 23rd April 2012 at 21:46. Reason: spelling mistake

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