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Old block, bad rings?

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    #16
    Originally posted by StereoInstaller1 View Post
    So...wait a minute...SETA bottom end on boost?
    Yea. Why?

    '88 325is
    VP UT of Austin Autoholics
    BMWCCA 380364

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      #17
      How much boost do you plan? I am just about to do the 2.7/885 on my "is", getting ready for boost, but turbocharging is not gonna happen for about 2 years...I would love to do SETA (unless this sweet deal on a M50 comes my way) pistons and be able to rock that until boost...so you see why I am curious?

      So now hurry up and get it done!
      Luke

      Closing SOON!
      "LAST CHANCE FOR G.A.S." DEAL IS ON NOW

      Luke AT germanaudiospecialties DOT com or text 425-761-6450, or for quickest answers, call me at the shop 360-669-0398

      Thanks for 10 years of fun!

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        #18
        Originally posted by nando View Post
        it's an M20.. it's like rebuilding a tupperware container. just take it apart and refresh it properly. bearings, rings, rod bolts, hone and polish the cylinders/pistons. put it back together. done.
        Hey Chris,

        How long should a mechanically inclined first timer like myself, take to assemble an m20 short block if armed with a Bentley? TIA.

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          #19
          just the block? I'd say 4-8 hours, depending on how much beer you're drinking. Probably the hardest thing is getting the rings/pistons back in the bores - but that's only dependent on your tools.

          Don't do what I did and try to use a cheap ring compressor, get something nice. I tried using a $8 ring compressor (because I needed it and didn't spend time looking for a good one) and then it cost me $75 to overnight a new ring because I broke one with a cheap tool. And then I still had to buy a better ring compressor.. I could have got a really damn nice one for the $100 it ended up costing me, and saved 2 days of headaches.

          -keep things clean
          -don't mix up the bearing caps (they're stamped so it shouldn't be an issue)
          -get a bearing clearance kit from napa or the like - they cost around $1
          -use a torque angle gauge for the rod bolts (I made one from an old CD-R)
          -use lots of assembly lube
          Build thread

          Bimmerlabs

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            #20
            Any chance that you would sell me yours, or better yet give me a hand when you are in town, for $$$'s of course. :D

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