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wastegate valve

Discussion in 'Land Rover Discovery' started by Gordy88, Nov 2, 2012.

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  1. Gordy88

    Gordy88 Active Member

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    Hi all,

    Re Turbo wastegate control valve

    Whe does this operate, and how can you check it?

    Mine's doing nothing, doesn't move when blipping throttle, or when holdinnd steady at about 3000 revs, or any point in between

    Theres no movement on the arm at all

    Is this normal, or is it siezed?

    Thanks

    Gordy
     
  2. cambridgecockney

    cambridgecockney Active Member

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    Coalville leicestershire. dont know why
    Do you mean waste gate. as control valve you wouldnt see operate
     
  3. colinl

    colinl New Member

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    you wont see anything happening as there is not enough pressure by just revving the engine. Get hold of the top pipe from the intercooler and inlet and rev the engine you should feel the pipe go hard.This will tell you whether you have pressure or not but still wont tell you whether the turbo is ok.The only real way to see whats happening is to fit a boost gauge.Dont forget that its a Land Rover and so its never going to pull your arms off when the turbo does come in.
     
  4. jamesmartin

    jamesmartin Well-Known Member

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    youd need to rev it high to check waste gate to open ,but it will theres no difference in pressure stood or moving ,on a tdi been stuck or needing a high pressure to open is no bad thing
     
  5. DaveDisco2

    DaveDisco2 Active Member

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    When I got my D2 it would not rev over about 2900 rpm, this turned out to be a siezed waste gate. Tried the wd40 and pliers to free it which worked......for a day. This continued until I used Ambersil Amberglide on it, which is Teflon (ptfe) based, I used this twice on it while sliding it forwards and backwards with the mole grips. And I have not had a problem since, more power and I can rev it to where I want now!!!!
     
  6. sabredylan

    sabredylan New Member

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  7. sierrafery

    sierrafery Well-Known Member

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    i dont recommend to check it like in the video with the arm attached cos you could ruin the diaphragm...you better undo the two nuts which are holding the valve then move the arm together with it to see if it's sticking or not.
     
  8. Gordy88

    Gordy88 Active Member

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    Thanks Guys,

    I check it with are removed and see how it goes

    G
     
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