69 Wiper Door Reinforcement Cups - NCRS Discussion Boards

69 Wiper Door Reinforcement Cups

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  • Wes G.
    Frequent User
    • December 1, 1999
    • 99

    69 Wiper Door Reinforcement Cups

    Looking in the 69 Assembly Manual, I see there is a 'seal' listed (Item #21, part # 3966668) for the reinforcement (cup) (Item #6, Part # 3921586). However, for the seal there is a Revision note, which states this item was added. Does anyone know about when this 'seal' was added to the revision record. I can't read the dates on my after market issue of the AIM.
    On my late August/69, I can't see any signs of a seal for the reinforcement cups.
    Also, can anyone tell me what the finish was for the cups? Zinc plated? The bolts & nuts? Cad plated?
    Thanks
    Wes
    NCRS # 33239
  • Terry M.
    Beyond Control Poster
    • September 30, 1980
    • 15595

    #2
    Re: 69 Wiper Door Reinforcement Cups

    Any chance you want to make it easy for us and give a UPC and sheet number?
    Terry

    Comment

    • Joe L.
      Beyond Control Poster
      • February 1, 1988
      • 43211

      #3
      Re: 69 Wiper Door Reinforcement Cups

      Originally posted by Wes Gans (33239)
      Looking in the 69 Assembly Manual, I see there is a 'seal' listed (Item #21, part # 3966668) for the reinforcement (cup) (Item #6, Part # 3921586). However, for the seal there is a Revision note, which states this item was added. Does anyone know about when this 'seal' was added to the revision record. I can't read the dates on my after market issue of the AIM.
      On my late August/69, I can't see any signs of a seal for the reinforcement cups.
      Also, can anyone tell me what the finish was for the cups? Zinc plated? The bolts & nuts? Cad plated?
      Thanks
      Wes
      NCRS # 33239

      Wes------


      The diagram in the AIM depicts the very late 1969 wiper door configuration. This configuration included the dual pie-pan actuator, associated bracket and other revisions. I believe the seals you mentioned were added at the same time as the other revisions.

      I believe that your 1969 would have originally used the "coffee can" style actuator and may not have used the seals which I think were, as I mentioned, added when the rest of the revisions were initiated. I know, for sure, that my mid-September, 1969-built, original owner convertible originally used the "coffee can" style actuator. So, I would expect that your August-built car would have, too.

      If you have the "dual pie-pan", it is possible that you have it since the dual pie-pan replaced the "coffee can" style for SERVICE many years ago. So, chances are, if yours was replaced, it would have been replaced with the "dual pie pan".
      In Appreciation of John Hinckley

      Comment

      • Wes G.
        Frequent User
        • December 1, 1999
        • 99

        #4
        Re: 69 Wiper Door Reinforcement Cups

        Originally posted by Terry McManmon (3966)
        Any chance you want to make it easy for us and give a UPC and sheet number?
        Sorry Terry.
        UPC: 1/D3
        Page: J87

        "W/S WIPER ACCESS DOOR CONTROL ASM."

        Thanks
        Wes

        Comment

        • Grant W.
          Very Frequent User
          • December 1, 1987
          • 407

          #5
          Re: 69 Wiper Door Reinforcement Cups

          Originally posted by Wes Gans (33239)
          Sorry Terry.
          UPC: 1/D3
          Page: J87

          "W/S WIPER ACCESS DOOR CONTROL ASM."

          Thanks
          Wes
          He Wes
          Cups are painted semi gloss black. Krylon 1613
          Looked at the AIM manual and Never seen this sealer piece before. Maybe I just have to look at my parts and maybe a piece is still stuck on it. If yours weren't on the car then don't worry about it. Just put the black chaulk sealer behind the cups.
          Hope this helps.
          Grant

          Comment

          • G A.
            Expired
            • February 18, 2010
            • 229

            #6
            Re: 69 Wiper Door Reinforcement Cups

            Wes, my October 10 '69 build convertible does not have them either. The cups, as Grant says are a semi-gloss black, steel construction with two elongated holes in them to allow vertical adjustment of the linkage assembly. The seal, on mine, appears to actually be material that very closely resembles 3M's rope caulk.

            Dan

            Comment

            • Terry M.
              Beyond Control Poster
              • September 30, 1980
              • 15595

              #7
              Re: 69 Wiper Door Reinforcement Cups

              Originally posted by Wes Gans (33239)
              Sorry Terry.
              UPC: 1/D3
              Page: J87

              "W/S WIPER ACCESS DOOR CONTROL ASM."

              Thanks
              Wes
              Sorry my 1969 AIM has the date for the revisions 2, 3 &4 obscured also. Since the page I have has "Drafting Graphic" at the top I doubt any copy of this sheet will provide date information for the addition of the seal. The only chance of finding that revision date would be if someone has an original page. Mine is first generation from microfilm.

              That seal is one of my favorite items to judge along with the sealant used over the firewall grommets. I have to admit I did not know the seal was added during the 1969 MY. I am glad you asked the question.
              Terry

              Comment

              • Lawrence M.
                Very Frequent User
                • February 1, 1995
                • 404

                #8
                Re: 69 Wiper Door Reinforcement Cups

                Wes, here is a picture of the seal on my December built car. Not sure if the fasteners are correct as the car was restored by a PO in the early 90's. Can anyone comment on the fasteners ?
                Larry
                2002 Z51 Convertible
                1969 L46 Convertible

                Comment

                • Chuck S.
                  Expired
                  • April 1, 1992
                  • 4668

                  #9
                  Re: 69 Wiper Door Reinforcement Cups

                  Originally posted by Lawrence Merchantz (25805)
                  Wes, here is a picture of the seal on my December built car. Not sure if the fasteners are correct as the car was restored by a PO in the early 90's. Can anyone comment on the fasteners ?
                  My notes confirm zinc or cad finish late 70 MY (not intuitive...I expected them to be black). The nut is indicated to have a fabricated flange attached but not the star washer. This configuration, however, could be a change from 69 to 70.

                  Can anyone confirm those seals appear as originals?
                  Last edited by Chuck S.; March 16, 2011, 01:04 PM.

                  Comment

                  • Joe L.
                    Beyond Control Poster
                    • February 1, 1988
                    • 43211

                    #10
                    Re: 69 Wiper Door Reinforcement Cups

                    Originally posted by Lawrence Merchantz (25805)
                    Wes, here is a picture of the seal on my December built car. Not sure if the fasteners are correct as the car was restored by a PO in the early 90's. Can anyone comment on the fasteners ?
                    Lawrence-----


                    The nuts aren't like the ones on my original owner 1969. Mine have a captured conical washer, not a star washer. I expect that the conical washer once had an integral rubber seal.

                    I doubt that the seals seen on your car are original, but it's possible. It appears that my car originally had the seals but they have deteriorated. I don't think that what's on my car represents a liquid sealer that was once applied. I think it's an actual seal. I have a suspicion that these seals were originally of the "dense foam rubber" type of material like that often used for master cylinder-to-firewall seals. This type of material deteriorates to just like what's now seen on my car. The seals on yours appear to be heavy rubber sheet material.

                    Also, the reinforcements ("cups") on yours appear to have been more thickly painted than I would expect for original pieces.

                    The GM #3966668 seals were discontinued without supercession in November, 1975. From what I can find, the GM #3926484 shims were never available in SERVICE. They were probably considered a PRODUCTION-only item with no SERVICE necessity.

                    Photos below
                    Attached Files
                    In Appreciation of John Hinckley

                    Comment

                    • Lawrence M.
                      Very Frequent User
                      • February 1, 1995
                      • 404

                      #11
                      Re: 69 Wiper Door Reinforcement Cups

                      Joe, great pics thanks. The correct fastener is one more I can add to my search list for sawp meets and bone yards. The seals are a very stiff rubber like material. Nothing like the foam seals. Most likley installed to replace the deteriorated originals during the early 90's restoration.
                      Larry
                      2002 Z51 Convertible
                      1969 L46 Convertible

                      Comment

                      • Terry M.
                        Beyond Control Poster
                        • September 30, 1980
                        • 15595

                        #12
                        Re: 69 Wiper Door Reinforcement Cups

                        For years I have told owners to use roofing paper (no I don't know which thickness or weight) as seals. I think the engine compartment heat deforms the seals in the fashion we see. More than a few owners have taken my suggestion, so some may chose to post details here.
                        Terry

                        Comment

                        • John C.
                          Expired
                          • January 1, 2005
                          • 616

                          #13
                          Re: 69 Wiper Door Reinforcement Cups

                          Wes

                          My Dec 68 built 69 car does not show any signs that the seal was used, otherwise it looks the same as the pictures Joe posted.

                          My 68 also has no seals.

                          John
                          Attached Files

                          Comment

                          • Wes G.
                            Frequent User
                            • December 1, 1999
                            • 99

                            #14
                            Re: 69 Wiper Door Reinforcement Cups

                            MANY THANKS to everyone for taking the time to contribute to this thread so far! VERY educational! The photos were excellent!
                            Thanks
                            Wes

                            Comment

                            • Wes G.
                              Frequent User
                              • December 1, 1999
                              • 99

                              #15
                              Re: 69 Wiper Door Reinforcement Cups

                              Originally posted by Lawrence Merchantz (25805)
                              Joe, great pics thanks. The correct fastener is one more I can add to my search list for sawp meets and bone yards. The seals are a very stiff rubber like material. Nothing like the foam seals. Most likley installed to replace the deteriorated originals during the early 90's restoration.
                              Larry,
                              According to the 69 AIM the GM part # for this nut is 3759924. If you check out AMK Products web site (www.amkproducts.com) you can find this GM part number cross referenced to their part number (B-13507, 8 pcs for $3.00). This web site is geared towards Mustangs, Chrylser, Chevelle, Nova cars but some of the fasteners were common for other GM vehicles.
                              Wes

                              Comment

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