Gas tank centering - NCRS Discussion Boards

Gas tank centering

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  • Jim S.
    Extremely Frequent Poster
    • March 1, 1986
    • 1398

    Gas tank centering

    I dropped the body Sunday. I then spent most of Monday and Tuesday lining up the body to the mounting holes.

    I just spent all day today trying, to no avail , to center the gas neck to the car ! It is to far forward and refuses to move rearward ! I did some research in the archives and found this :

    John Hinckley (29964)
    Beyond Control Poster


    Join Date
    December 1st, 1997Posts16,062

    Re: Fuel Tank Install

    Also, duplicate the locally deformed areas in the weld seam flange where the straps pass by in the front and rear of the tank; I don't think the repro tanks have the seam flange bent at those four locations, and it makes attaching the straps and centering the filler neck in the body opening extremely difficult.
    END QUOTE.


    Well sure enough I have a replacement Quanta gas tank and while the flange in the four areas is bent , it is nowhere near the amount my original was . So while the solution seems obvious
    my question is : How do I bend the flange to the correct amount without disturbing the weld seam ? It would be a small consolation to have it fit but then leak !!!

    Once again counting on your expertise and past experiences.

    Jim
  • Dan H.
    Extremely Frequent Poster
    • July 31, 1977
    • 1368

    #2
    Re: Gas tank centering

    Jim, my 64 had a similar forward aspect to my new Quanta tank. I made some shims for under the front of the tank and tilted it back just enough so it wasn't noticeable.
    Dan
    1964 Red FI Coupe, DUNTOV '09
    Drove the 64 over 5000 miles to three Regionals and the San Jose National, one dust storm and 40 lbs of bugs!

    Comment

    • Larry M.
      Extremely Frequent Poster
      • January 1, 1992
      • 2688

      #3
      Re: Gas tank centering

      I also had this issue with my Quanta tank on my 1967 convertible. Prior to installation, I used a special, small Vise-Grip with duckbill ends to gently increase these bends. I also had to slightly re-bend the original straps, which tended to want to keep the tank off center. Finally I used wooden shims to hold the tank in centered position against the rear fiberglass bulkhead while I tightened (and loosened and tightened) the straps. Even after all this, I still wound up with the gas filler nozzle slightly off center……..but it is now not very noticeable (except to me).

      If you are using NEW gas tank straps, I understand that they are either slightly too short or need EXTRA attention/work to fit properly. Used originals are better if you can get them. Obviously, this is all much easier with the body off the frame.

      Larry

      Comment

      • Jim S.
        Extremely Frequent Poster
        • March 1, 1986
        • 1398

        #4
        Re: Gas tank centering

        Dan,

        Now this is why I like this forum . Tilting it forward is the kind of thing I would not have thought of . I think as soon as I get close enough , that will be my finisher .

        Larry ,

        I will try to acquire those pliers you mention . I have seen them . I also thought about re-bending my original straps , and since it is all coming out anyway , I will try that too
        "this is all much easier with the body off the frame. " You just had to rub it in , huh .

        Thanks guys

        Jim
        Last edited by Jim S.; November 13, 2014, 12:40 PM.

        Comment

        • Jim S.
          Extremely Frequent Poster
          • March 1, 1986
          • 1398

          #5
          Re: Gas tank centering

          Before I start , has anybody had a problem damaging the welding seam while bending ???

          Comment

          • Mike T.
            Very Frequent User
            • January 1, 1992
            • 568

            #6
            Re: Gas tank centering

            Jim - I used a chunk of 2x4 and a mallet to 'persuade' the seamed flange closer to the body of the tank but I kept the repeated taps kinda light so I wouldn't disturb the welded seam.
            Mike T. - Prescott AZ.

            Comment

            • Tony S.
              NCRS Vice President, Director Region VII & 10
              • April 30, 1981
              • 982

              #7
              Re: Gas tank centering

              I avoid the centering problem by not tightening the two hold down straps. They were attached by the two carriage bolts but very loose. Once I drop the body, I can move the tank around easier. Once I get it perfectly centered, then I tighten down the carriage bolts. Maybe it's too late for that if you have already bolted down your body. Good luck! Tony
              Region VII Director (serving members in Arkansas, Kansas, Louisiana, Missouri, Oklahoma and Texas).
              Original member of the Kansas City Chapter, est'd 07/11/1982.
              Member: 1965 and 1966 National Judging Teams
              Judging Chairman--Kansas City Chapter.
              Co-Editor of the 1965 TIM and JG, 6th and 7th editions.

              Comment

              • Jim S.
                Extremely Frequent Poster
                • March 1, 1986
                • 1398

                #8
                Re: Gas tank centering

                Michael,

                Another good tip !

                Thanks.

                Jim

                Comment

                • Jim S.
                  Extremely Frequent Poster
                  • March 1, 1986
                  • 1398

                  #9
                  Re: Gas tank centering

                  Tony,

                  I unbolted the hold down straps altogether , and I still could not get it forward enough.

                  I have since removed the tire carrier and the tank for a major adjustment of the tank and a re-bending of the straps.

                  With all of this imput on how to do so , I hope to be fine ....I hope I hope...........

                  Thanks,

                  Jim

                  Comment

                  • Jim S.
                    Extremely Frequent Poster
                    • March 1, 1986
                    • 1398

                    #10
                    Re: Gas tank centering

                    Success at last !

                    Thanks for all the good tips.

                    What a giant pain in the A** , and please let's not have anyone tell me it's off a millimeter one way or the other !!!! I don't care ! I am Done !

                    Jim
                    Attached Files

                    Comment

                    • James W.
                      Extremely Frequent Poster
                      • December 1, 1990
                      • 2647

                      #11
                      Re: Gas tank centering

                      Looks great Jim!!! Way to stay at it until you get the results you want.


                      Originally posted by Jim Schwering (9598)
                      Success at last !

                      Thanks for all the good tips.

                      What a giant pain in the A** , and please let's not have anyone tell me it's off a millimeter one way or the other !!!! I don't care ! I am Done !

                      Jim

                      Comment

                      • Jim S.
                        Extremely Frequent Poster
                        • March 1, 1986
                        • 1398

                        #12
                        Re: Gas tank centering

                        Thanks James .

                        It's not like I am O.C.D. or anything ! I mean I just wanted it to look correct ! In fact the very term O.C.D. makes me angry ! Why does everything have to be abbreviated ? Why can't people just say what they mean ?
                        I mean what if someone doesn't know what O.C.D means ? Shouldn't we be precise in what we describe ? In fact the word precise is often over used . Most people who say they are precise are nowhere near precise !
                        Blah blah blah for another hour .................................................. ............................! But thank God I am not !!


                        Jim
                        Last edited by Jim S.; November 15, 2014, 01:30 AM.

                        Comment

                        • Loren L.
                          Extremely Frequent Poster
                          • April 30, 1976
                          • 4104

                          #13
                          Re: Gas tank centering

                          And wouldn't it be nice if Quanta changed it...........

                          Comment

                          • Timothy B.
                            Extremely Frequent Poster
                            • April 30, 1983
                            • 5179

                            #14
                            Re: Gas tank centering

                            Originally posted by Loren Lundberg (912)
                            And wouldn't it be nice if Quanta changed it...........
                            I agree with Loren, do ALL reproduction parts have to have issues...

                            Comment

                            • Duke W.
                              Beyond Control Poster
                              • January 1, 1993
                              • 15641

                              #15
                              Re: Gas tank centering

                              When these kind of qualilty issues occur it's really important for users to provide strong feedback to the vendor, and pressure them to correct the problems so the next guy might have an easier time.

                              I get the impression that most of the time guys just blow it off and move on without ever contacting the vendor, reporting the problem, and putting pressure on them to fix it.

                              Duke

                              Comment

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