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Thread: oil at top of inlet

  1. #1
    Regular Member neill's Avatar
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    Vehicle : Vectra C estate

    Trim : SRI

    Engine : Z19DTH

    Year : 2008

    Mileage : 79000

    Default oil at top of inlet

    Just wondering why theres black wet looking stains around the linkage bar that connects to the swirl valves, there isnt lots of it but just a bit worried where it could be coming from. i dont think the bar is damaged as the bar moves freely when reving

    thanks

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    Regular Member Derek Mc's Avatar
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    The intake stream has a habit of pulling oil vapour through from th separator to the atmos side of the intercooler then deposting it in the intercooler pipes intake manifold.

    There are several posts on here about modifying it to breath to atmosphere. Have a search for DIY Oil catch tank from member name Winnie2457
    I would add a word of caution, that if the oil is visible around the swirl pot arms then they may well be getting tired and worn and require replacing the manifold,,,,,

  3. #3
    Regular Member neill's Avatar
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    Vehicle : Vectra C estate

    Trim : SRI

    Engine : Z19DTH

    Year : 2008

    Mileage : 79000

    Default

    Quote Originally Posted by Derek Mc View Post
    The intake stream has a habit of pulling oil vapour through from th separator to the atmos side of the intercooler then deposting it in the intercooler pipes intake manifold.

    There are several posts on here about modifying it to breath to atmosphere. Have a search for DIY Oil catch tank from member name Winnie2457
    I would add a word of caution, that if the oil is visible around the swirl pot arms then they may well be getting tired and worn and require replacing the manifold,,,,,
    Thats my fear but it was replaced for a new one 2 years ago, should it fail that soon?

  4. #4
    Regular Member neill's Avatar
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    Vehicle : Vectra C estate

    Trim : SRI

    Engine : Z19DTH

    Year : 2008

    Mileage : 79000

    Default

    im just wondering if the 10k boost i used the other dy could have caused the stains, as i have had a closer look and there appears to be a small amount of liquid around the top of the valves. Im assuming this means that the swirl valves are on there way out?

    ive checked the bar and it appears to be connected on all 4

    cheers

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