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C2 Vent window weatherstrip

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  • Ed S.
    Extremely Frequent Poster
    • August 6, 2014
    • 1377

    C2 Vent window weatherstrip

    Just finished refurbishing the right door components of my 1964 convertible. Repaired / rebuilt the vent window regulator and installed new weather stripping & felt on the door and window tracks. I also replaced both weather strip pieces in my vent window. All went pretty easy thanks to several great document found in the archives and comments in threads -- except for one issue, read on please.

    I have a question for anyone that has replaced the vent window weather strips. The one I refurbished is so tight that it is impossible to close the vent window by just cranking the handle. The problem is that last quarter turn of the handle to completely shut the window and get the glass into the seats of the weather strip. I know if I forced the handle I would break the regulator.

    To close the vent I have to apply pressure to the corners of the window as I crank that last quarter turn - then it will completely shut. It seems like the weather stripping is 10 to 20% larger (thicker) than it needs to be. I put a bit of WD 40 along the edge of the glass and on the metal fame to lubricate the surfaces that are very tight. This helps some. I bought the weather stripping from Paragon.

    I had the vent window frame out on my work bench when I removed the old dry rotted pieces and installed the new ones - I am 100% positive that the new rubber pieces are completely seated in the frame.

    Did I do something wrong; am I dealing with poor quality replacement parts or, will the rubber eventually shrink and "settle in" after some time? I am keeping the window closed so there is constant pressure on the (oversize) rubber, hoping that it will take on the shape (and size) of the window.


    BTW - I may be telling you all something you already know and do but to be safe..... when I had the door, door panel and window hardware out and on my workbench I ran all the stainless steel bright work over my 6" cotton wheel with some red jeweler's rouge. My pieces are all original and were looking a bid dull. They look new and are significantly brighter after the polishing - definitely worth the time, and not difficult to do.
    Ed
  • Dennis O.
    Expired
    • December 1, 1988
    • 438

    #2
    Re: C2 Vent window weatherstrip

    Ed,

    I have the same problem with my '67 coupe. It is the drivers side on mine; the passenger side fits fine. I have been looking at it, and it seems to mer that the drivers side weatherstripping may be oversize. On your car is it both sides, or only one? And if only one, which side? (BYW, mine has been in for at least 5 years, so I don't think time helps much.)

    Denny

    Comment

    • Ed S.
      Extremely Frequent Poster
      • August 6, 2014
      • 1377

      #3
      Re: C2 Vent window weatherstrip

      Denny,

      Both pieces of weather stripping appear to be a bit too large. First, just to be clear - I have only done one window - the passenger side. When the window is just about closed both edges of the window (the bare glass side and the side with the stainless steel frame are very tight against the rubber. I have to press on both edges to get the window to fully seat. The section of rubber at the bottom that is horizontal to the ground seems to be ok. I am wondering if I ordered two new pieces if they would be the same or different. I'm also entertaining "shaving some rubber off the oversize pieces - possibly with some 60 or 80 grit sand paper. Then go over the sanded sections with a much finer grit paper to smooth it out.
      Ed

      Comment

      • Dennis O.
        Expired
        • December 1, 1988
        • 438

        #4
        Re: C2 Vent window weatherstrip

        Ed,

        Thanks; please keep me in the loop here, as I guess I have gotten to the point where I accept it because it doesn't hurt anything (I don't let the car sit out in the rain or have it judged), but it's annoying and I'd sure like to get it fixed right. I looked at several sources for weatherstripping, but they ultimately all seem to come from the same manufacturer. I'll take another look at my car to see if I can determine if there are any specific problem areas.

        Denny

        Comment

        • Ed S.
          Extremely Frequent Poster
          • August 6, 2014
          • 1377

          #5
          Re: C2 Vent window weatherstrip

          Denny,
          Will keep you informed on how the driver's side goes and if I can resolve the right side issue. I'm in the same boat as you - not going to have it judged or out in the rain but it is annoying to know that it does not work right and, for the moment, there doesn't seem to be anything I can do about it.

          Subject to comments / advice / solutions from other members, I am inclined to attempt to surgically shave off some rubber material that is interfering with the proper closing of the window.
          Ed

          Comment

          • Domenic T.
            Expired
            • January 29, 2010
            • 2452

            #6
            Re: C2 Vent window weatherstrip

            Ed,
            I am dealing with the same problem on my 67 coupe. I think you have the right idea as to the lube and keeping it closed to get a set.
            The only thing I would do different is the lube. There is a special lube that I use that is for O-ring installation on other parts, BUT says it is also for WX stripping rubber. It comes in a tube and I also use it on my door. Rubber.It allows thr rubber to find it's resting place by sliding. The door ( which is not your question) would squeeze the new WX strip until I used the lube. My vent window rubber is now easier and one is already working with the handle.
            It comes in a tube and looks like a silicone grease. I have the name at the shop and can get it for you if you can't find it.

            Dom

            Comment

            • Ed S.
              Extremely Frequent Poster
              • August 6, 2014
              • 1377

              #7
              Re: C2 Vent window weatherstrip

              Domenic,
              Thanks for chiming in and offering a solution. I never heard of the special rubber lube you are referring to. Rather than try to explain it to a local auto supply parts store clerk would you please post a follow up comment and provide identifying information for this stuff, brand name, manufacturer, etc, whatever, and where you bought it. Your reply will be greatly appreciated.

              Thanks again,
              Ed

              Comment

              • Domenic T.
                Expired
                • January 29, 2010
                • 2452

                #8
                Re: C2 Vent window weatherstrip

                Ed,
                I will get it ASAP, about 15 min.

                DOM

                Comment

                • Domenic T.
                  Expired
                  • January 29, 2010
                  • 2452

                  #9
                  Re: C2 Vent window weatherstrip

                  Originally posted by Domenic Tallarita (51287)
                  Ed,
                  I will get it ASAP, about 15 min.

                  DOM
                  ED,
                  SIL-GLYDE CAT.NO. SG-8

                  Says it's weather stripping. trunk seals. Speedometer cables. brake parts. window channels. and so on. good from -20F to +400F.

                  DOM

                  Comment

                  • Ed S.
                    Extremely Frequent Poster
                    • August 6, 2014
                    • 1377

                    #10
                    Re: C2 Vent window weatherstrip

                    Dom,
                    Thank you very much. I did an internet search for Sil Glyde SG8 and found several sources at reasonable rates. Will look for it locally at auto supply part stores.

                    Thanks again,

                    Ed
                    Ed

                    Comment

                    • Bill L.
                      Expired
                      • April 1, 1985
                      • 349

                      #11
                      Re: C2 Vent window weatherstrip

                      I have the same issue with my recently acquired (and recently restored) early 67 coupe. Both sides are so tight they will not close using the wind wing cranks ----

                      I think this is an issue with the size - thickness of the reproduction weather strips ---- this is frustrating given that I may need to replace these items even though they are brand new and "LOOK" great ---they just don't work correctly.

                      As others have stated --- mine are seated properly as well --- this appears to be an after market quality control issue --- In my opinion...

                      Regards
                      Bill

                      Comment

                      • Ed S.
                        Extremely Frequent Poster
                        • August 6, 2014
                        • 1377

                        #12
                        Re: C2 Vent window weatherstrip

                        Bill
                        I agree with you - definitely a quality control issue. I intend to call Paragon next week to discuss this issue as I still have the left side to do. Will report what they tell me. I am guessing that all vendors get the WS from the same manufacturer.
                        Ed

                        Comment

                        • Ed S.
                          Extremely Frequent Poster
                          • August 6, 2014
                          • 1377

                          #13
                          Re: C2 Vent window weatherstrip

                          Called Paragon today and spoke to a "tech rep" (as opposed to a sales rep) and explained the problem with the "fat" vent weatherstrips. He was sympathetic but said there isn't much he could do. Paragon does not make them - they are manufactured by an unnamed vendor - he said that they have received a "few" reports of this problem before but not a great number. In the past they've pulled stock and compared the pieces and found them to be all the same, meaning there were no unusually fat ones in the bunch. He is adamant that they will shrink over time (didn't say how long) and it is best to keep the window shut to compress the rubber.

                          What are you going to do? No resolutions other than try to surgically remove some of the offending material. I'll give my pieces some time to "compress" and if it doesn't improve by spring next year - I'll resort to more drastic measures. End of story.
                          Ed

                          Comment

                          • Page C.
                            Very Frequent User
                            • February 1, 1979
                            • 802

                            #14
                            Re: C2 Vent window weatherstrip

                            Hi Ed,
                            Most of the reproduction weather striping was being made by two companies. Metro in Minneapolis, MN and Corvette Rubber in Cadillac Mich. I would ask the Paragon "tech rep" who is their supplier and contact the supplier directly. If they are reluctant to provide their supplier, call both of them and ask if they supply that part to Paragon. It's also possible that there is now and "overseas" supplier. if so, good luck.

                            Comment

                            • Ed S.
                              Extremely Frequent Poster
                              • August 6, 2014
                              • 1377

                              #15
                              Re: C2 Vent window weatherstrip

                              Very interesting - thanks. I found both company websites. "Metro Moulded Parts Inc" has a list of vendors it supplies, Paragon is not one of them - Corvette Central is - meaning Paragon's vendor is likely to be Corvette Rubber. Both companies sell direct to retail customers and their on line prices appear to be significantly lower than Paragon.

                              Links to both companies are below for anyone that is interested.

                              Thanks you Page.

                              The World's Most Advanced Weatherstripping and Detail Rubber Parts


                              Located in Northern Michigan, we manufacture the highest quality American-made restoration weatherstripping for Corvettes. When you count on quality weatherstripping for America’s favorite sports car, you can count on Corvette Rubber Company.
                              Ed

                              Comment

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