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    #1

    M50 swap life problems

    Hey r3v people. First post.
    Recently did a m50 swap to my 91 318is.

    I am just trouble shooting some problems and need a little help.

    Current setup
    -91 318is
    -Getrag 260 and 325 drive train
    -m50 from 1991 m50b25nv
    -Akg Harness adapter



    Problem 1-
    My starter won't engage the fly wheel
    Things I've done to trouble shoot
    Starter tested at AutoZone- passed
    Tested the wiring by laying starter on frame rail with all wiring hooked up and hit the key for a second.
    Bendix popped out and gear turned.
    In short it's not the wiring or starter.

    I did shave the oil pan a bit to let the flywheel sit flush.
    Motor turns by hand but the starter will not turn it.
    Single mass flywheel from Getrag 260

    It almost seems like a space issue.

    Anyone else have a problem with the swap where the starter can't reach or goes to far over the flywheel and not turning the motor?
    Tags: None
    #2
    What starter did you use. Needs an m20 g260 starter.

    Comment

      #3
      Clutch and Flywheel combo? May be causing spacing issues so it's missing entirely.
      1984 AW 318i - aka Runt

      Comment

        #4
        Starter fro. G260. Ik it works with this flywheel trans beacuse I had it in with My m20.
        I do not remember the clutch but it was also working with my previous motor and trans.

        I just tried loosing the starter and doing this made it sit at a slight angle. I hit the key and it turned the motor. Grinding of coarse but now Ik know it's definaly the postion of it.

        Comment

          #5
          2 possibilities.
          1. The bell housing spacer plate is holding the starter from sitting correct. It's the thin "tin" peice that sits between the TRANS and the block.

          2. I didn't grind enough of the oil pan fins off to get the flywheel to sit right although I'm 90% sure I did enough.

          Tell me what u guys think.

          Comment

            #6
            Still looking for help. Bump

            Comment

              #7
              Figured it out. Don't shoot me but i was using the wrong starter the whole time. Switched them up when I had them tested. Thanks for the help guys.

              Comment

                #8
                Yeah, M42 and late model M20 starters are the same, only M42 has a smaller pinion gear.

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