M50 swap life problems

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  • ruracin61
    Noobie
    • Nov 2014
    • 7
    #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
    • mpowerful
      E30 Fanatic
      • Jul 2013
      • 1273
      #2
      What starter did you use. Needs an m20 g260 starter.

        Comment

        • E30Runt
          Member
          • Jul 2013
          • 46
          #3
          Clutch and Flywheel combo? May be causing spacing issues so it's missing entirely.
          1984 AW 318i - aka Runt

            Comment

            • ruracin61
              Noobie
              • Nov 2014
              • 7
              #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

                • ruracin61
                  Noobie
                  • Nov 2014
                  • 7
                  #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

                    • ruracin61
                      Noobie
                      • Nov 2014
                      • 7
                      #6
                      Still looking for help. Bump

                        Comment

                        • ruracin61
                          Noobie
                          • Nov 2014
                          • 7
                          #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

                            • AndrewBird
                              The Mad Scientist
                              • Oct 2003
                              • 11892
                              #8
                              Yeah, M42 and late model M20 starters are the same, only M42 has a smaller pinion gear.

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