Distributor Cap ID help - NCRS Discussion Boards

Distributor Cap ID help

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  • Greg L.
    Extremely Frequent Poster
    • March 1, 2006
    • 2291

    Distributor Cap ID help

    Can some of you guys with a keen eye help me narrow down or nail the application for this cap? It's from a 70 GTO and I was wondering if it would be correct for my 69?

    If not, what years would it be correct for?

    Thanks.
    Attached Files
  • Peter L.
    Extremely Frequent Poster
    • May 31, 1983
    • 1930

    #2
    Re: Distributor Cap ID help

    Greg - It looks like a newer Delo-Remy D-308 distributor cap. I think the top of the cap has PATENT ####### on it. The D-308 would be a functionally correct distributor cap, but would probably be judged as a GM replacement distributor cap for your '69. Someone will tell us if I am incorrect.

    Pete

    Comment

    • Greg L.
      Extremely Frequent Poster
      • March 1, 2006
      • 2291

      #3
      Re: Distributor Cap ID help

      It says "Patent 2769047 R" (small "r").

      Comment

      • Peter L.
        Extremely Frequent Poster
        • May 31, 1983
        • 1930

        #4
        Re: Distributor Cap ID help

        Greg - It's alway great to learn things about other year Corvettes, so I checked the 1968-1969 NCRS TIM&JG (3rd Ed, Summer 2001) I have and it states that "Original cars are known to have PATENT PENDING or PATENT 2769047 in 1968 and PAT. PENDING R or PATENT 2769047 in 1969." Next I went to my 1970-72 Corvette TIM&JG (4th Ed, 2006) and it states "Original cars are known to have PATENT PENDING R .........."

        So, one of the C3 gurus will have to step up and tell you where the PATENT 2769047 R fits into the picture.

        Pete

        Comment

        • Michael M.
          Very Frequent User
          • February 1, 1993
          • 604

          #5
          Re: Distributor Cap ID help

          Greg this cap is incorrect for your car if you are going to get it judged. From my understanding the Delco-Remy Patent Pending cap was used up till 1967. From 1968 and some of 1969 used Delco-Remy Patent 2769047 and from the rest of 1969 till 1972 used the Delco-Remy Patent Pending R cap. So it depends if you have a early or late 1969 car. Your judging manual should clarify the matter. If your not going to get the car judged this cap will work fine.

          Comment

          • Dick W.
            Former NCRS Director Region IV
            • June 30, 1985
            • 10483

            #6
            Re: Distributor Cap ID help

            Originally posted by Peter Lindahl (6598)
            Greg - It's alway great to learn things about other year Corvettes, so I checked the 1968-1969 NCRS TIM&JG (3rd Ed, Summer 2001) I have and it states that "Original cars are known to have PATENT PENDING or PATENT 2769047 in 1968 and PAT. PENDING R or PATENT 2769047 in 1969." Next I went to my 1970-72 Corvette TIM&JG (4th Ed, 2006) and it states "Original cars are known to have PATENT PENDING R .........."

            So, one of the C3 gurus will have to step up and tell you where the PATENT 2769047 R fits into the picture.

            Pete
            Pete, et al. I believe the next revision of the 1968-1969 Technical Information and Judging Guide will clear that up. Patent pending R is the accepted cap today and that will be in the manual
            Dick Whittington

            Comment

            • Greg L.
              Extremely Frequent Poster
              • March 1, 2006
              • 2291

              #7
              Re: Distributor Cap ID help

              Thanks guys. I knew of the error in the 68-69 TIM&JG but couldn't remember what exactly it was.

              So Dick are you saying that I actually managed to finally find the correct cap for my 69???

              Comment

              • Wayne M.
                Expired
                • March 1, 1980
                • 6414

                #8
                Re: Distributor Cap ID help

                Originally posted by Greg Linton (45455)
                Can some of you guys with a keen eye help me narrow down or nail the application for this cap?.
                Greg --- I've taken the liberty of Photoshopping your 2 pics to bring up the detail of the small "R" turned on its side.

                Believe I also have one of those.
                Attached Files

                Comment

                • Jack H.
                  Extremely Frequent Poster
                  • April 1, 1990
                  • 9906

                  #9
                  Re: Distributor Cap ID help

                  I believe you'll find that version of the D308 cap is considered factory concours correct for '73-74 Corvettes...

                  Comment

                  • Greg L.
                    Extremely Frequent Poster
                    • March 1, 2006
                    • 2291

                    #10
                    Re: Distributor Cap ID help

                    Okay but now I'm a little confused again.

                    How does this cap differ from the correct 69-72 caps?

                    Comment

                    • Harmon C.
                      Extremely Frequent Poster
                      • August 31, 1994
                      • 3228

                      #11
                      Re: Distributor Cap ID help

                      I would think their would have been patent pending caps and then in 73 started patent and the actual number. As Jack stated in 73 we look for a patent number on the cap.
                      Lyle

                      Comment

                      • Michael M.
                        Very Frequent User
                        • February 1, 1993
                        • 604

                        #12
                        Re: Distributor Cap ID help

                        Lyle what number are you looking for. Is it #2769047 or #571594 on top of the cap. I have caps with both of these numbers on them.

                        Comment

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

                          #13
                          Re: Distributor Cap ID help

                          Neither is correct for a late 60's application, you are looking for "Patent Pending R" without numbers on the top.
                          Bill Clupper #618

                          Comment

                          • Harmon C.
                            Extremely Frequent Poster
                            • August 31, 1994
                            • 3228

                            #14
                            Re: Distributor Cap ID help

                            Originally posted by Michael Mytro (22211)
                            Lyle what number are you looking for. Is it #2769047 or #571594 on top of the cap. I have caps with both of these numbers on them.
                            2769047 is the cap I look for but the manual I have only states their should be a number. Their is a newer edition of the manual with yellow pages so their could be an update.
                            Lyle

                            Comment

                            • Jack H.
                              Extremely Frequent Poster
                              • April 1, 1990
                              • 9906

                              #15
                              Re: Distributor Cap ID help

                              Yes, and this makes NO SENSE to me and I've tried to find someone with GM design/legal experience to explain.

                              When I worked at Texas Instruments, it was simple. You had one year from first public disclosure of an invention to submit your application to the US Patent office. If you failed to apply, the invention became public domain...

                              At that time, you were required to make public due diligence disclosure (Pat Pending label). Once the patent was accepted/granted, you had a 'reasonable' amount of time to change the notice from 'Pat Pending' to the actual patent or patents the invention was granted protection under.

                              So, here we have two items: (1) lift window for point adjust, and (2) quick release mounting system. The Patent number calls out a number of other, distributor internal, features, but that's it for the cap itself.

                              Now, that patent was filed in 1953 and granted in 1956. How in (*&& did GM/Delco get away with waiting until 1973 to change the emboss on the distributor cap from 'Pat Pending' to 'Patent XXXXX" without endangering their intellectual property rights????

                              Comment

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