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  • ABY Dipstick oil leak

    This is the second ABY motor i have found this problem so thought it was worth a mention.

    The dipstick tube has a small rubber seal where it joins onto the block, part number N90461401. The first ABY i dismantled was missing the seal which i later found inside the sump. And when i was cleaning the S2 motor i noticed the block was covered in oil around the hole. Sure enough when i removed the dipstick tube i found the remains of a mangled seal in there. Worth checking if your working in that area

    I have a new one somewhere so when i find it i'll post up measurements.

    Mark.
    Attached Files
    91CQ20v - Gone to a new home
    93UR-S4 - The Magic Carpet
    94S2Bus - The Emerald Express

  • #2
    does it just slot in Mark?
    Panthero Coupé quattro 20vt
    Indigo ABY coupé
    Imola B6 S4 Avant

    Comment


    • #3
      My engine out the Avant didn't have one the stroker came with a seal on the dipstick

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      • #4
        Nice one,

        thanks Mark.

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        • #5
          that explains that leak then.

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          • #6
            Found it, ID is 9.5mm and about 2.5mm thick. Having said that i think its too big for the job.

            For the first attempt i slid it onto the dipstick tube and found there was no way it was ever going to slide inside the hole. Second attempt i pushed it down inside the hole and found there was no way the tube was ever going to fit in. Third attempt i crushed it between the tube and block at the very top.

            If i had a box of o-rings to play with i would have used too, one slightly smaller to fit down inside the hole, then another at the top like i ended up doing. Either way its sealed so job done.

            Mark.
            Attached Files
            91CQ20v - Gone to a new home
            93UR-S4 - The Magic Carpet
            94S2Bus - The Emerald Express

            Comment


            • #7
              Does anyone know whether the piece which protrudes from the block, to attach the dipstick tube into is removable? If so, does anyone have one they can take a picture of and provide measurements? I think I may need one of these for a block I'm using for a rebuild, but can't find a part number for it. Parts album shows it as included with the block.
              91 Modded 3B
              14 A6 Avant Black Edition

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              • #8
                Don't have measurements for these as I sold them to forum users

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                • #9
                  Thanks. I need this piece which doesn't appear to be available as a replacement part. I guess I'm looking for someone who has a damaged block, who will sell this part. Or someone who has one that I can make a copy from
                  image_20184.jpg
                  91 Modded 3B
                  14 A6 Avant Black Edition

                  Comment


                  • #10
                    Part No 30 which I can't find a part number for. Any ideas, #30 doesn't show on any of the family albums I can find online..

                    Block.jpg
                    91 Modded 3B
                    14 A6 Avant Black Edition

                    Comment


                    • #11
                      Is it screwed in or pressed in?
                      I have a spare bottom end I could borrow it from for you but can’t see how it comes out.

                      S2 Coupe 3B Project


                      Ur quattro restoration

                      S2 Avant

                      Boost is the new rock and roll!
                      sigpic

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                      • #12
                        Originally posted by newsh View Post
                        Is it screwed in or pressed in?
                        I have a spare bottom end I could borrow it from for you but can’t see how it comes out.
                        There's no screw thread in the block, so I assume it's a press fit. Never removed one.
                        91 Modded 3B
                        14 A6 Avant Black Edition

                        Comment


                        • #13
                          Steve I have a scrap AAN block which I will remove it from for you - its away being hot tanked at the moment. Once its back I'll get it out for you - it's just pressed in.
                          I'll also model it so I can make some replacements.

                          Alex
                          Panthero Coupé quattro 20vt
                          Indigo ABY coupé
                          Imola B6 S4 Avant

                          Comment


                          • #14

                            S2 Coupe 3B Project


                            Ur quattro restoration

                            S2 Avant

                            Boost is the new rock and roll!
                            sigpic

                            Comment


                            • #15
                              Originally posted by Error404 View Post
                              Steve I have a scrap AAN block which I will remove it from for you - its away being hot tanked at the moment. Once its back I'll get it out for you - it's just pressed in.
                              I'll also model it so I can make some replacements.

                              Alex
                              That would be great
                              91 Modded 3B
                              14 A6 Avant Black Edition

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