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Thread: valve between the rocker cover and the throttle body

  
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    dirtybadger1982's Avatar
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    valve between the rocker cover and the throttle body

    hi everyone, i have got valve which has snapped its white and black and looks like i a 1 way valve so i bought 1 from halfords took the broken 1 off then realised that i could blow both ways !! i fitting the 1 way valve but all it did was make a whistling sound like a kettle can anyone help me on this if they have has the same broken valve in the past

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    Rainey88's Avatar
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    Hundreds of threads on this mate search in the search bit, most peoples break and put a 1 way valve in , me being one with the white bit to the front and black bit faceing the rocker cover... thats if you got one from halfords.

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    the original valve i could blow both ways so that doesnt make it a 1 way valve ?? when i put 1 on it whistled like a kettle, think i may get the real mc'coy from vaux any ideas how much they are

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    Well thats what everyone says use... i had a straight through piece of pipe / adaptor for abit and that worked.. not sure if they are a 1 way valve and yours was maybe broken if you search about it you'l see what i mean.

    And not sure how much they are for OE one.

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    KrisC's Avatar
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    They are a 1 way valve, they prevent the crankcase being pressurised when the inlet manifold is under pressure (on boost).

    a new one from vauxhall is around £18.
    Astra SRi Turbo
    281|317

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    ok so the arrow should point away from the rocker cover ??

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