cold start rattle and after beating

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  • s2dk
    S2Forum Maniac
    • Jul 2016
    • 507
    • Country: Denmark

    #1

    cold start rattle and after beating

    hello

    my aby have some cold start rattle. its not every time but often if it sits over night
    when its start then the first 10 sec it rattles like a lose chain or somthing? maybe lifters? tryid to change the little return valve in block but did not help.

    allso if i drive it hard and do some low down pulls 1st-2-3 or hard out of a corner in 2nd
    it will start to have this knocking sound like its missing oil or something? it dosent matter if the oilpin reads full og half. im thinking bad lifters? oil pressure is allways above 2 bar (idle) and 4 bar when rpms are higher.

    any ideas to whats wrong?

    atm im runnning q8 f1 10w50
    will soo change to millers cft 5w40
    and add the rattle plate from thuppu
  • s2dk
    S2Forum Maniac
    • Jul 2016
    • 507
    • Country: Denmark

    #2
    no one got that same problem?

    Comment

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

      #3
      Is it a 3b or ABY? Could be tappets potentially
      Greg

      S2Forum.com Administrator & Webmaster

      '93 Coupe with a few tweeks

      Comment

      • s2dk
        S2Forum Maniac
        • Jul 2016
        • 507
        • Country: Denmark

        #4
        its a aby sry thought i did mention that

        Comment

        • macspring
          S2Forum Zealot
          • Mar 2005
          • 6371
          • Home: Ireland Current: Wallis & Futuna

          #5
          Drop the sump and check the oil pick mesh is clear, and that there is no debris 'floating' in the oil.

          First, take off the 'rocker cover' on the top of the engine and see if the 'orange' plastic 'cover' you see when you remove the oil cap is still completley intact.

          Also make usre you're using an oem or very good brand of oil filter.





          Last edited by macspring; 28 December 2016, 23:01.

          Comment

          • s2dk
            S2Forum Maniac
            • Jul 2016
            • 507
            • Country: Denmark

            #6
            I did have it off and all was fine and I'm using Bosch filter

            Comment

            • macspring
              S2Forum Zealot
              • Mar 2005
              • 6371
              • Home: Ireland Current: Wallis & Futuna

              #7
              I see, well I'm done, I've exceeded the range of my ability in solving this problem - Sorry.

              Others who see this thread tomorrow should know the anwer.

              Best wishes.






              Comment

              • s2dk
                S2Forum Maniac
                • Jul 2016
                • 507
                • Country: Denmark

                #8
                I will have it off again soon to put in baffle plate in sump. So will check again But did clean the pick up 3000 km ago
                Thx for trying to help

                Comment

                • mcandmar
                  S2Forum Zealot
                  • Apr 2004
                  • 5118
                  • Country: Ireland

                  #9
                  Sounds like a worn PAS pump to me. Try getting somebody else to start the car while listening around the pump area.
                  91CQ20v - Gone to a new home
                  93UR-S4 - The Magic Carpet
                  94S2Bus - The Emerald Express

                  Comment

                  • s2dk
                    S2Forum Maniac
                    • Jul 2016
                    • 507
                    • Country: Denmark

                    #10
                    That Could be the rattle from vold yes
                    I know its not like new anymore
                    But it does not explaine the knock/rattle when being driven hard

                    Comment

                    • hunker7
                      S2Forum Possessed
                      • Mar 2014
                      • 3487
                      • Home: Latvia Current: United Kingdom

                      #11
                      Could be tappets as mentioned above, my 200+ mile AAN developed a slight knocking but only when engine was cold and stood over night.
                      '93 Audi 100 Avant - R.I.P
                      '92 Audi UrS4 Avant - SOLD
                      '93 Audi UrS4 Avant
                      '15 Audi A7 quattro 3.0 TDI

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