Squeaking-noise/birdtwitter from the enginebay 1,9 TDI 1Z, with filmclip!

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  • AudiRS
    S2Forum Enthusiast
    • Jul 2006
    • 159
    • Country: Norway
    #1

    Squeaking-noise/birdtwitter from the enginebay 1,9 TDI 1Z, with filmclip!

    I`ve got this squeaking-noise from the enginebay at my `93 Audi 80 1,9TDI 1Z.
    Sounds a bit like bird-twittering...
    The sound only appears when the engine is cold, but goes away when it is stars getting warm.
    When I step on the gas the engine stop making the noise, but re-returns when i let go.

    The sounds seems to be comming from the front of the engine, but it is`nt very easy to find out where it comes from!
    De-attached the belt for the vanepump/waterpumpe and started the engine, and the noise was still there. This concludes that the noise is`nt comming from any of theese.

    I spottet a kind of belt-tensioner for the dynamo-belt, but did`nt quiet get how to de-attach the belt?
    This stopped me of taking of the dynamo-belt so i could`nt test if the noise came from here.
    Can someone explain to me how this belt-tensioner work? Is it fluid-based (I think this because the noise disappear when the engine is getting warm)?
    How do i loosen the belt, so i can take it of?

    Anyone who have heard about a similar problem on the 1Z-engine?
    What can the problem be?
    Last edited by AudiRS; 29 January 2014, 10:50.
    - `95 Audi S2 B4 2,2T Avant
    - `07 Audi A6 C6 S-line Lim.
    - `96 Audi A6 C4 2,5TDIs Quattro
    - `93 Audi 80 TDI Avant
    - `89 Audi Coupe 2,3E 20v quattro[/URL]
    - `99 Audi A4 B5 1,8TS 20v quattro
    - `92 Audi 80 B4 2,3E 10v quattro
    Tags: None
    • goodall
      S2Forum Maniac
      • Jul 2008
      • 810
      • Country: Northern Ireland
      #2
      Have the same noise on my A4 replaced both belts and still there, alway to consumed by other things too give it a look. Be interesting some one knows the issue here

        Comment

        • YELL MAN
          S2Forum Maniac
          • Dec 2005
          • 535
          • Country: Shetland Islands
          #3
          Well on the S2 I had a similar noise that would start like that and end up just a constant squeal, turned out to be the water pump, I replaced it and no more problem.

          Maybe not the same problem being that it is a completely different engine but possible worth a look
          1994 Indigo Blue S2 coupe
          1994 80 Avant 1.9 TDI
          2005 Yamaha Fazer 1000
          1953 AJS Model 18S

            Comment

            • QuattroFever
              S2Forum Extremist
              • May 2006
              • 1360
              • Country: United Kingdom
              #4
              Put a little talcum powder on the belt and see if it goes quiet.
              Volcano ABY coupe

              Ant

                Comment

                • AudiRS
                  S2Forum Enthusiast
                  • Jul 2006
                  • 159
                  • Country: Norway
                  #5
                  Originally posted by YELL MAN
                  Well on the S2 I had a similar noise that would start like that and end up just a constant squeal, turned out to be the water pump, I replaced it and no more problem.

                  Maybe not the same problem being that it is a completely different engine but possible worth a look
                  Thank you for the tip. I thought about this myself, but i de-attached the belt for the waterpump (its driven by its own belt, inluding the vanepump) and the noise did`nt go away
                  - `95 Audi S2 B4 2,2T Avant
                  - `07 Audi A6 C6 S-line Lim.
                  - `96 Audi A6 C4 2,5TDIs Quattro
                  - `93 Audi 80 TDI Avant
                  - `89 Audi Coupe 2,3E 20v quattro[/URL]
                  - `99 Audi A4 B5 1,8TS 20v quattro
                  - `92 Audi 80 B4 2,3E 10v quattro

                    Comment

                    • AudiRS
                      S2Forum Enthusiast
                      • Jul 2006
                      • 159
                      • Country: Norway
                      #6
                      Originally posted by QuattroFever
                      Put a little talcum powder on the belt and see if it goes quiet.
                      I shall try de-attaching the belt for the generator and check if the sound is comming from this area! Thanks
                      - `95 Audi S2 B4 2,2T Avant
                      - `07 Audi A6 C6 S-line Lim.
                      - `96 Audi A6 C4 2,5TDIs Quattro
                      - `93 Audi 80 TDI Avant
                      - `89 Audi Coupe 2,3E 20v quattro[/URL]
                      - `99 Audi A4 B5 1,8TS 20v quattro
                      - `92 Audi 80 B4 2,3E 10v quattro

                        Comment

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