A little help on pressure testing

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  • Jonas_R
    S2Forum Possessed
    • Jan 2004
    • 3780
    • Country: Denmark

    #1

    A little help on pressure testing

    Hi,

    Well will have to do some serious pressure testing.

    I was planning to block off the 3 small hoses going into the IM and then apply pressure at where the small hose connects to the diverter valve. However iam unsure what happens when i apply pressure since the fuel regulator will come under pressure aswell, will it hold the pressure or will the pressure leak out there?

    When testing the big hoses, i was planning on testing from the turbo outlet and the all the way up to the IM, does this seem right?

    How can i best test the WG? since my local dealer how change the WG membrane said the the shaft looked really worn or bad. IMO i dont value his word that high, but can i test if the shaft is oki somehow. I can get my fingers on a used WG for around 50£, but can one change the shaft?

    Also i have no idea how to test the PVC system since this also seems to be able to make overboost cutoff?

    /Jonas R.
    Sleeper S2 Avant +450

    A6 Avant 2.7t Stage 3

    Audi S2 Coupe RS2'ed
  • Jonas_R
    S2Forum Possessed
    • Jan 2004
    • 3780
    • Country: Denmark

    #2
    Hmm nobody that can help?

    /Jonas R.
    Sleeper S2 Avant +450

    A6 Avant 2.7t Stage 3

    Audi S2 Coupe RS2'ed

    Comment

    • Greg_S
      Administrator
      • Jul 2003
      • 12430
      • Country: United Kingdom

      #3
      Jonas,

      the bit on testing to the IM is right.

      As for WG get hold of a mitivac tool and plug that onto the spare connection on the wastegate, pump its vacuum up and leave for a min or two and see if any pressure is lost.

      HTH
      Greg

      S2Forum.com Administrator & Webmaster

      '93 Coupe with a few tweeks

      Comment

      • Jonas_R
        S2Forum Possessed
        • Jan 2004
        • 3780
        • Country: Denmark

        #4
        Greg:

        What about the part on testing the small hoses, thus that seem correct to you?

        /Jonas R.
        Sleeper S2 Avant +450

        A6 Avant 2.7t Stage 3

        Audi S2 Coupe RS2'ed

        Comment

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