1957 RDE-19 magneto. Part identification.

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  • August 12, 2026 at 12:00 am #326159
    Ghost_n_the_shell

      Good evening folks.

      I removed the magneto today.
      While cleaning and examining it, I observed a thin piece of metal shaving drop out.
      It came from the center, where the brass ring middle is.

      Pictures included.

      I have scoured the exploded diagrams and I’m wondering if it’s remnants of maybe part 2?

      I’d love help identifying what it was so I can replace it.

      August 12, 2026 at 8:09 pm #326217
      Ghost_n_the_shell

        Update just in case others run into this. Some folks from the AOMCI Facebook indicate my magneto plate is worn, and it’s possibly some aluminum build up from scraping.

        I have a NOS plate on the way in the mail.
        So I had a look today again, and I noticed the bosses where the locator ring would presumably sit appear to have a section machined from them. I’ve enclosed pics, because I’m not sure if it is supposed to be machined like this, or perhaps this is where it may have been scraping?

        I looked at my NOS in photos and it’s too small to tell if they all have these “shelves”.

        Anyway. Here’s the pics.

        August 12, 2026 at 8:35 pm #326221
        Bob Wight
        Participant

          US Member

          There is nothing wrong with the coil bosses – they are typically machined that way.   The heels of the ignition coils should align with the bosses exactly as they appear in your pictures.  Here’s a pic from my ’56 30hp I did a few years ago – you’ll see the bosses are like yours.

          Bob

          1937 Champion D2C Deluxe Lite Twin
          1954 Johnson CD-11
          1955 Johnson QD-16
          1957 Evinrude Fastwin 18
          1957 Evinrude 3022
          1958 Johnson QD-19
          1958 Johnson FD-12
          1959 Johnson QD-20
          1982 Evinrude 25hp

          “Every 20 minute job is only a broken bolt away from a 3-day project.”
          "Every time you remove a broken or seized bolt an angel gets his wings."

          August 12, 2026 at 10:01 pm #326223
          Ghost_n_the_shell
            Bob Wight wrote:

            There is nothing wrong with the coil bosses – they are typically machined that way.   The heels of the ignition coils should align with the bosses exactly as they appear in your pictures.  Here’s a pic from my ’56 30hp I did a few years ago – you’ll see the bosses are like yours.

            Appreciate the picture! That’s CLEAN!

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