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1962 Top did not want to go down

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  • 1962 Top did not want to go down

    After sitting in the cold garage all winter last week when it was about 60 outside I sent to put my top down. The rear deck went up as it should but when it came for the top to it was really fighting hard to move much. I had the car sitting in a way that it was easier for it to come up and drop down. I did not try for long to get it to go down. I felt there was something up and I did not want to hurt the motor. I would think perhaps at the least my reservoir is low on fluid and the pump and lines are low/dry and won't circulate? I know when I open the screw on the side of the reservoir the level should be at the bottom of that hole. As of last fall there were no visible leaks in the system, lines, etc. I just parked it when this happened so I have not looked for leaks. If I recall the system could have one of two diff fluids in it? Brake fluid or trans or ps, I forget.

  • #2
    I got it to go down yesterday. I suspect I am prob low on fluid in the pump. For the life of me I can not get the screw to see how low/fill it back up out. I stop trying to so I would not strip the head.
    On the other end of the pump there is a bolt. When would happen if I pulled that out, does the unit come apart?

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    • #3
      The bolt and the fill screw are on the same end.

      John
      top pump.jpg
      John Pizzi - Squarebirds Administrator

      Thunderbird Registry #36223
      jopizz@verizon.net 856-779-9695

      http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

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      • #4
        ah, I was trying to get out the screw on the other end. I saw the bolt on the other end but was not looking from an angle to see the screw on that end. I will try again on THAT ONE. So I am filling on that end until the fluid starts coming out then stop. I have small sweating like leaks on various connections, I think it has got low to give the pump enough power? I have made sure the battery had a full charge when I try. Worse case is I just buy a new pump.

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        • #5
          Pretty sure it has brake fluid in the system based on the odor. Once confirmed do I just put in DOT 2 or the like in it?

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          • #6
            Originally posted by blue62tbird View Post
            So I am filling on that end until the fluid starts coming out then stop.
            That's correct. Put a screw driver in the hole and see if you can get some fluid on the blade. If it's clear it's brake fluid, if it's red it's trans fluid. 1962 was a changeover year for the type of fluid so it could be either one. Use Dot 3 if it's brake fluid.

            John
            John Pizzi - Squarebirds Administrator

            Thunderbird Registry #36223
            jopizz@verizon.net 856-779-9695

            http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

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            • #7
              To find out which fluid you have try this:
              Brake fluid disburses in water because it is glycol-based. Trans fluid floats on top of water because it is petroleum-based. All you need is a drop in a dish of water. You will see right away if it floats.

              It's very important NOT to mix DOT-3 with trans fluid.
              My latest project:
              CLICK HERE to see my custom hydraulic roller 390 FE build.

              "We've got to pause and ask ourselves: How much clean air do we need?"
              --Lee Iacocca

              From: Royal Oak, Michigan

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              • #8
                great tip I will try that.

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                • #9
                  The pump was pretty low. It has brake fluid in it. Topped it off and the top is working better and the pump sounds better. The old fluid was a little gummie. I think I should drain the pump, I assume the bottom screw i was trying to get out is the drain?

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                  • #10
                    Originally posted by blue62tbird View Post
                    I assume the bottom screw i was trying to get out is the drain?
                    There is no drain. The only way to drain the pump is to take it out, turn it on end and let the fluid drain out the fill hole. You can also remove the large bolt and take the reservoir completely off. That's rather messy though and you risk tearing the o-rings.

                    John
                    John Pizzi - Squarebirds Administrator

                    Thunderbird Registry #36223
                    jopizz@verizon.net 856-779-9695

                    http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

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                    • #11
                      Is there enough fluid in the lines that if I drain the pump I would need to run the system a few times here and there for a week or two when I can then drain it again to get all the old fluid out?

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                      • #12
                        The only way to get all the fluid out is to remove all the lines, solenoids and pistons and drain everything off the car. If you are going to do that then you should refill with Type F transmission fluid which doesn't harden like brake fluid. If you don't want to go through all that work then just refill the pump with fresh brake fluid, bleed the system and leave it at that. As long as you use the top regularly the brake fluid should be ok.

                        John
                        John Pizzi - Squarebirds Administrator

                        Thunderbird Registry #36223
                        jopizz@verizon.net 856-779-9695

                        http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

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                        • #13
                          Thanks for the help today.

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                          • #14
                            You're welcome.
                            John Pizzi - Squarebirds Administrator

                            Thunderbird Registry #36223
                            jopizz@verizon.net 856-779-9695

                            http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

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