What goes here? Should be simple right...

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  • essi1553
    E30 Addict
    • Apr 2012
    • 440

    #1

    What goes here? Should be simple right...

    M20B25 Rear of motor, exhaust side. Already tried realoem and it's not exact as it may seem. Also I can't seem to find anything there that visually shows this side of the motor.

    For reference here it is on realoem (The picture references approximately where the number 30 is on the realoem drawing): http://www.realoem.com/bmw/enUS/show...diagId=11_0119

    Finger Points to it:
    picture uploader
  • uturn
    E30 Modder
    • Dec 2010
    • 987

    #2
    Dirt and grime that is supposed to collect over 20 years. Nothing "goes" there, but I have used that hole to attach my chains when I needed to lift the block.

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    • essi1553
      E30 Addict
      • Apr 2012
      • 440

      #3
      Originally posted by uturn
      Dirt and grime that is supposed to collect over 20 years. Nothing "goes" there, but I have used that hole to attach my chains when I needed to lift the block.
      Thank you, it worries me that it leads practically directly to the clutch disc area, I would imagined a breather vent at least.

      Comment

      • ForcedFirebird
        R3V OG
        • Feb 2007
        • 8300

        #4
        They are on almost all engine blocks, regardless of make. It's a locating/positioning hole for machining processes.
        john@m20guru.com
        Links:
        Transaction feedback: Here, here and here. Thanks :D

        Comment

        • TobyB
          R3V Elite
          • Oct 2011
          • 5168

          #5
          Dirt and grime
          Running without that may lead to an excess of poseurism...

          t
          now, sometimes I just mess with people. It's more entertaining that way. george graves

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          • essi1553
            E30 Addict
            • Apr 2012
            • 440

            #6
            Thanks guys.

            Comment

            • Cabriolet
              R3V OG
              • Apr 2010
              • 9620

              #7
              here are images of my blocks.
              John, you are saying that is for original machining? seems odd to have the area around it built up for what looks like extra strength.
              Attached Files
              Much wow
              I hate 4 doors

              Comment

              • ForcedFirebird
                R3V OG
                • Feb 2007
                • 8300

                #8
                They are on all the blocks we have here, BMW or not. When in the factory they need a convenient place to hold/carry/locate the blocks for machining after the casting process. They are reinforced since they may be carrying the weight of an assembled engine.
                john@m20guru.com
                Links:
                Transaction feedback: Here, here and here. Thanks :D

                Comment

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