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  • audinut
    S2Forum Fiend
    • Jul 2009
    • 2195
    • Country: United Kingdom

    #1

    block...

    is this the same as aby?


    http://www.ebay.de/itm/Audi-90-100-2...item48573fc2c7
    NOT a car dealer! just an S2/RS2 enthusiast
  • Pirvu Eugen
    S2Forum Extremist
    • Apr 2007
    • 1978
    • Country: Romania

    #2
    nope! No oil squirters for pistons cooling! With right equipment can be done though. Ahh...and not for ABY...as it dosint have the threaded holes for the belt tensioner..

    Comment

    • audinut
      S2Forum Fiend
      • Jul 2009
      • 2195
      • Country: United Kingdom

      #3
      are aby,3b,aan blocks the same?
      NOT a car dealer! just an S2/RS2 enthusiast

      Comment

      • Pirvu Eugen
        S2Forum Extremist
        • Apr 2007
        • 1978
        • Country: Romania

        #4
        no...all 3 are different to eachother...small differences...but are not 100% the same.

        Comment

        • UrS4boy
          S2Forum Obsessed
          • Feb 2006
          • 11859
          • Country: Canada

          #5
          Originally posted by audinut
          is this the same as aby?
          This 034100105P block comes up as a 1988-1991 Audi 100/Avant 2.0L 85 kW "RT" engine.

          Bit of a follow-up:

          The RT used 81.00 mm 034107065H pistons. It also had the same 034105021G crankshaft that the "NM" used (NM is the 2L version of the 20V 7A engine). However, the RT was a 10V, single cam, engine with a 034103351C head.
          Last edited by UrS4boy; 14 September 2013, 18:09.
          RS2'd 93 UrS4 5 spd sedan
          94 UrS4 V8 6 spd manual avant

          Comment

          • UrS4boy
            S2Forum Obsessed
            • Feb 2006
            • 11859
            • Country: Canada

            #6
            Originally posted by Pirvu Eugen
            no...all 3 are different to each other...small differences...but are not 100% the same.
            I know that the 3B didn't have the holes/bosses for the cam belt tensioner that the AAN, ABY and ADU have but I do NOT know why the ABY and ADU blocks are different than the AAN block. They (AAN, ABY and ADU) all have oil squirters and the belt tensioner holes/bosses. What else is different on the block?
            RS2'd 93 UrS4 5 spd sedan
            94 UrS4 V8 6 spd manual avant

            Comment

            • pasbogdan
              S2Forum Extremist
              • Sep 2009
              • 1160
              • Country: Romania

              #7
              Not worth to mod this block.
              With that money+a little a set of 81.5 mm pistons can be bought if bores are worn.

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