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woodruff key part no. N0127082 ???

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  • woodruff key part no. N0127082 ???

    On drawing it is part no. 4 (OEM part no. N0127082)
    what for it is used ? how it is used ? when ???



    Attached Files

  • #2
    Simply locates & holds cam wheel to cam shaft when bolts holds it all together. The rounded side sits in the cam flat edge in wheel .

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    • #3
      Originally posted by simon20vq View Post
      Simply locates & holds cam wheel to cam shaft when bolts holds it all together. The rounded side sits in the cam flat edge in wheel .
      Probably correct for some cam sprockets but not true for the AAN/ABY/ADUs (and maybe the 3B??) because the cam sprocket has a built-in "key" that fits into a groove in the end of the camshaft.

      RS2'd 93 UrS4 5 spd sedan
      94 UrS4 V8 6 spd manual avant

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      • #4
        Some better photos:



        RS2'd 93 UrS4 5 spd sedan
        94 UrS4 V8 6 spd manual avant

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        • #5
          ookeyyyy , so this is the one .. ... strange that ETKA shows this thingy as separate part for ADU !




          Tommi's Billet AD001 cam sprocket has a built-in "key" as well (if I remember correctly I didn't have to fit it separately ...)


          Attached Files

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          • #6
            be careful not to overtighten or pressurise the pulley wheel. the key is like cheese on aby wheels. I have broken a couple in my time.

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            • #7
              ... what about hexagon bolt M10X1,25X30 (no.6 on diagram, part no.: N90256202) and washer (no.7 on same diagram, part no.: 027109143) - seems that these are special ones and
              only OEM can be used



              https://www.ecstuning.com/b-genuine-...ach/n90256202/
              &
              https://www.ecstuning.com/b-genuine-...ach/027109143/

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              • #8
                Originally posted by sailaz View Post
                On drawing it is part no. 4 (OEM part no. N0127082)
                what for it is used ? how it is used ? when ???



                Could this be for the chain sprocket? At least it looks like that one.

                Audi UrS4 Avant 2.5 20vt - twincharged - Project
                Audi 80q B4 Sedan 2.2 20vt - Daily user
                BMW 320d Touring e91 M-Sport - Daily user
                BMW 740iA e38 - Project

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