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how to test a dump valve??

Discussion in 'A3/S3 Forum (8L Chassis)' started by d18ony, Sep 5, 2008.

  1. d18ony

    d18ony Donnie Mac

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    Hi all

    Just a quick query. I suspect that my dumpvalve is perhaps fooked. Is there a way of testing it? Im sure i read somewhere about pushing a pen up into it?!?

    I apologosie if this has recently been covered but i cannot find any clear instructions.

    Cheers

    Donnie
     
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  3. themanthatcan

    themanthatcan Member
    VCDS Map User

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    Do you have the Forge 007P DV?
     
  4. HTC

    HTC Active Member

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    Remove it, push the piston up and then place your finger over the small vacuum hole. If the piston drops right back it's leaking and needs replacing.

    Blow into the side connection (air pushing on the side of the piston). Does it let air pass?
     
  5. d18ony

    d18ony Donnie Mac

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    well when i blow into the side connection it goes out the small top pipe (this is maybe normal?) anyway, when i cover that with my finger, im pretty sure that its still passing, slowly all be it. does this mean its knackered??
     
  6. d18ony

    d18ony Donnie Mac

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    any one??
     
  7. h100vw

    h100vw Member

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    shagged from what you say. The small pipe shouldn't be connected to anything.

    Gavin
     

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