Announcement

Collapse
No announcement yet.

Tuning carb after rebuilding it.

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Guest
    #1

    Tuning carb after rebuilding it.

    Yes I just recently rebuilt my 1960 thunderbird carb however i need to know how you go about fine tuning it? I push the throttle rapidly from a stand still and it seems to bog a little bit and then pick up. Any help is greatly appreciated or ways to dial in this carb would help.

    Thanks for your time

    Stielow
    Tags: None
    • Alexander
      Webmaster
      • Oct 30 2002
      • 3321
      #2
      RE: Tuning carb after rebuilding it.

      When you rebuilt the carburetor, did you rebuild the accelerator pump? The bog is probably due to the primary accelerator pump not giving enough of a shot of fuel. If you did rebuild, it can be adjusted by putting the rod in a different hole on the lever.

      Alexander
      1959 Hardtop
      1960 Golde Top
      Alexander
      1959 Hard Top
      1960 Golde Top
      sigpic

        Comment

        • Guest
          #3
          RE: Tuning carb after rebuilding it.

          I think i mixed up my venturis but one of them on the top is marked l and the other r probably for l and right. could someone tell me where the venturis go? I know I put in the check ball and weight now I just think I messed up the venturis on the carb is that possible?

            Comment

            • Alexander
              Webmaster
              • Oct 30 2002
              • 3321
              #4
              RE: Tuning carb after rebuilding it.

              I know the primary and the secondary venturies on Ford 4100 carburetor look similar, but I don't remember if it is possible to interchange them. I just rebuilt one of these carburetors six months ago. If it is any help, the primary venturi retaining screw is hollow to allow for the check ball and weight.

              I will try to look at one of these carbs this weekend to see what the difference is between the two venturis.

              Alexander
              1959 Hardtop
              1960 Golde Top
              Alexander
              1959 Hard Top
              1960 Golde Top
              sigpic

                Comment

                • Alexander
                  Webmaster
                  • Oct 30 2002
                  • 3321
                  #5
                  RE: Tuning carb after rebuilding it.

                  The secondary and primary venturis are nearly identical and can interchange, but only the primary venturis have the little brass injectors that squirt gas from the accelerator pump. If you did not install the venturis in the right spot, you will get a bad bog, because you will not get the shot of gas when you step on the accelerator.

                  You can see in the picture below that in the open semi-circle on the venturis, only the primaries have brass nozzles.

                  http://www.squarebirds.org/carburetor/4100inside-view.jpg



                  Alexander
                  1959 Hardtop
                  1960 Golde Top
                  Alexander
                  1959 Hard Top
                  1960 Golde Top
                  sigpic

                    Comment

                    Previous template Next
                    Working...
                    😀
                    🥰
                    🤢
                    😎
                    😡
                    👍
                    👎