What does an Original D409 rotor look like?? - NCRS Discussion Boards

What does an Original D409 rotor look like??

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  • Gary B.
    Extremely Frequent Poster
    • January 31, 1997
    • 6986

    #16
    Accel equivalent to D409

    John,

    Do you know the Accel part number for the long tip equivalent of the D409?

    Gary

    Comment

    • William C.
      NCRS Past President
      • May 31, 1975
      • 6037

      #17
      Re: What does an Original D409 rotor look like??

      Interesting, as part of my research I checked several caps for consistancy, True Delco remy and period aftermarket with all of them being surprisingly close in dimension across the contacts as measured from the rotor centerline. Never had a repro to check.
      Bill Clupper #618

      Comment

      • Dennis O.
        Expired
        • November 30, 1988
        • 438

        #18
        Re: What does an Original D409 rotor look like??

        Anybody here ever heard of brazing? Other than the possibility that the additional heat could cause some problems, I think it might work. I'm going to try it this weekend.

        Comment

        • Ian G.
          Extremely Frequent Poster
          • September 3, 2007
          • 1114

          #19
          Re: What does an Original D409 rotor look like??

          Would that be the accel 130117?

          acc-130117_w.jpg

          Comment

          • Timothy B.
            Extremely Frequent Poster
            • April 30, 1983
            • 5178

            #20
            Re: What does an Original D409 rotor look like??

            I have a friend that bought a MSD cap and it's a heavy duty piece.. I remember the tip is adjustable with a allen screw..

            Comment

            • William C.
              NCRS Past President
              • May 31, 1975
              • 6037

              #21
              Re: What does an Original D409 rotor look like??

              the 130117 was one of the aftermarket unites I checked and found to ne of the second design (not goodguy) configuration.
              Bill Clupper #618

              Comment

              • Donald L.
                Very Frequent User
                • September 30, 1998
                • 461

                #22
                Re: What does an Original D409 rotor look like??

                Originally posted by Ian Gaston (47813)
                Would that be the accel 130117?

                [ATTACH]20024[/ATTACH]
                I have 2 130117 Accel rotors. The one that looks like Ian's has a tang that is about 1/32" shorter. It is from Canada and whose color is more greenish than tan when compared to the US made rotor. The tang has a black coating over brass and uses a silver colored rivet .

                The US made 130117 rotor tang has a natural brass finish,brass rivet and a larger stainless button contact. The plastic used on the US made rotor is also a tad thicker. The US made rotor is from an Accel 8120 cap & rotor kit.
                Last edited by Donald L.; September 25, 2009, 08:53 AM.

                Comment

                • William C.
                  NCRS Past President
                  • May 31, 1975
                  • 6037

                  #23
                  Re: What does an Original D409 rotor look like??

                  That might indeed be the case, as the one I checked (not a goodguy) had a "Made in Canada" sticker on the box. Now the question is how does one make sure you get a "USA" version?
                  Bill Clupper #618

                  Comment

                  • Gary B.
                    Extremely Frequent Poster
                    • January 31, 1997
                    • 6986

                    #24
                    MSD cap with adjustable tip; why isn't this best?

                    Originally posted by Timothy Barbieri (6542)
                    I have a friend that bought a MSD cap and it's a heavy duty piece.. I remember the tip is adjustable with a allen screw..
                    Guys,

                    Wouldn't one with an adjustable tip length satisfy everyone? Make the tip shorter for those who want that design; make it longer for those who want that design.

                    I bet that even with the adjustable tip feature the MSD part will cost less than an NOS D-R D409 in the pull-string box.

                    Gary

                    Comment

                    • Larry T.
                      Expired
                      • May 15, 2007
                      • 404

                      #25
                      Re: MSD cap with adjustable tip; why isn't this best?

                      Originally posted by Gary Beaupre (28818)
                      Guys,

                      Wouldn't one with an adjustable tip length satisfy everyone? Make the tip shorter for those who want that design; make it longer for those who want that design.

                      I bet that even with the adjustable tip feature the MSD part will cost less than an NOS D-R D409 in the pull-string box.

                      Gary
                      What would the part number for the adjustable tip rotor be. It would satisfy my need. The MSD ones I have seen appear to be for their distributors.

                      Comment

                      • Gary B.
                        Extremely Frequent Poster
                        • January 31, 1997
                        • 6986

                        #26
                        MSD cap & rotor, cont.;

                        I just realized, maybe the MSD rotor is only compatible with an MSD cap? Yes? No?

                        Gary

                        Comment

                        • Ian G.
                          Extremely Frequent Poster
                          • September 3, 2007
                          • 1114

                          #27
                          Re: What does an Original D409 rotor look like??

                          Will the engine rev up to its full RPM without the original D-409 rotor, or is it just a possible fix for the problem if it doesn't happen to rev up to full?

                          Comment

                          • William C.
                            NCRS Past President
                            • May 31, 1975
                            • 6037

                            #28
                            Re: What does an Original D409 rotor look like??

                            Really depends on the engine compression primarily, I used to take plugs out on my Fuel car that wouldn't pull past 4500 and give them to my college buddy with 283 195 horse engines and they ran then for another 10K miles.
                            Bill Clupper #618

                            Comment

                            • Ian G.
                              Extremely Frequent Poster
                              • September 3, 2007
                              • 1114

                              #29
                              Re: What does an Original D409 rotor look like??

                              Does this look like the old style longer length? What should the length of the tang be from the center of the rivet?

                              Picture 004.jpgPicture 008.jpg

                              Comment

                              • Michael M.
                                Very Frequent User
                                • January 31, 1993
                                • 603

                                #30
                                Re: What does an Original D409 rotor look like??

                                Larry just checked some of my loose D-409 rotors and they all have some type of number embossed on top of the rotor. Some but not all have a E stamped on the contact arm. John is correct in saying that the Accel is a great replacement. The Accel is a little heavier which tells me its a little more on the heavy duty side. I have a couple of NOS D-409 rotors still in the pull-string box, can anyone tell me if the rotors in the pull-string box will have a E stamped on the contact arm?

                                Comment

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