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1966 Tbird carburator adaptor plate hose connection

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  • 1966 Tbird carburator adaptor plate hose connection

    II have been tracing out vacuum lines and came accross this hose which is on the port of the carburator adaptor plate. It has a bolt in it. What is this for and should it be connected to something other than a bolt? Thanks! Was going to attach photo but I cant seem to.

  • #2
    Mike, Registered Users cannot post pix directly on our server. Only Paid Members can. Paid Membership is $20yr and gives you privileges regular members do not have. You can check out Paid Membership up at the top of the Forum in the general comments Forum. When you registered, we posted a Welcome to you in the New Members Welcoming Forum. You can either post pix on free photo hosting websites, like Photobucket, send them to me or John ~ jopizz or become a Paid Member and post them yourself. The PayPal Donate to Site link is in the green bar towards the top of the Forum. Here is the link to your Welcome.

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    • #3
      Transmission modulator valve .

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      • #4
        Your adapter plate should look like this. As pointed out the hose connection goes to the transmission modulator. Someone may have connected it to a different vacuum source.

        John

        1966 carb spacer 2.jpg
        John Pizzi - Squarebirds Administrator

        Thunderbird Registry #36223
        jopizz@squarebirds.org 856-779-9695

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        • #5
          There is a hose connected to a steel tube at back of carb where the vac lines connect to the intake and it appears to go down towards transmission.

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          • #6
            You guys have been an invaluable resource!! Of all the T-bird forums I've joined, this one is by far the best. Thank you. John, I have my booster/MC from ABS and it is being installed this weekend. I will let you all know how it goes.

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            • #7
              Originally posted by Mike-n-Teri66Tbird View Post
              There is a hose connected to a steel tube at back of carb where the vac lines connect to the intake and it appears to go down towards transmission.
              If you have any ports on the back of your carburetor then it's a replacement carburetor and not the original Autolite 4100. That's fine the way it's setup. You should have a rubber plug on the unused port on the base plate. It's better than having a bolt in there. Bolts don't seal tight and you can have a vacuum leak. Without having a picture it's hard to know what your setup is.

              John
              John Pizzi - Squarebirds Administrator

              Thunderbird Registry #36223
              jopizz@squarebirds.org 856-779-9695

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