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throttle pressure adjustment

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  • throttle pressure adjustment

    OK, CRS syndrone applies here! I just installed the rebuilt flit-o-matic in my 62 ragtop, shifts way to early, about 17 mph. I'm thinking lengthen the adjustment to get a later shift, right?

    Jim
    "We can't all be Heroes, Some us just need to stand on the curb and clap as they go by" Will Rogers

    We will provide the curb for you to stand on and clap!


    Indy Honor Flight www.IndyHonorFlight.org

    As of Veterans Day 2017, IHF has flown 2,450 WWII, Korean, and Vietnam Veterans to Washington DC at NO charge! to see
    their Memorials!

  • #2
    IIRC, the shop manual calls out a procedure that involves setting of the throttle linkage, and then the transmission linkage. The transmission adjustment uses a pressure gauge to set the proper linkage length.

    Jim Bradley
    '64 Daytona HT "Rerun"
    Jim Bradley
    Lake Monticello, VA
    '78 Avanti II
    sigpic

    Comment


    • #3
      quote:Originally posted by Rerun

      IIRC, the shop manual calls out a procedure that involves setting of the throttle linkage, and then the transmission linkage. The transmission adjustment uses a pressure gauge to set the proper linkage length.
      Jim Bradley
      While Jim is absolutely correct, I doubt if many of us have the transmission pressure gauge (at least I don't). I have gotten away with getting the shift point set to my satisfaction by adjusting the throttle linkage rod. I just can't remember which way to turn it right off hand.


      [img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/R-4.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64L.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64P.jpg[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/53K.jpg[/img=right]Paul Johnson
      '53 Commander Starliner (since 1966)
      '64 Daytona Wagonaire (original owner)
      '64 Daytona Convertible (2006)
      Museum R-4 engine
      Paul Johnson, Wild and Wonderful West Virginia.
      '64 Daytona Wagonaire, '64 Avanti R-1, Museum R-4 engine, '72 Gravely Model 430 with Onan engine

      Comment


      • #4
        Shortening the rod will pull on the lever and increase line pressure.


        Dwain G.

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        • #5
          Paul, if you are referring to the Carb. to bellcrank linkage rod, that is NOT how you adjust the Trans. press. it adjusts the pedal height, and will affect the throttle press. That's why they tell you to set it at 17/64" clearance to the bellcrank stop screw FIRST, to get 50-80 PSI at idle (550 RPM)in Drive then adjust the rod at the Trans. to 80-85 PSI in Drive with both service and parking brakes locked and wheels chocked. IF PRESS. IS LOW, SHORTEN THE ROD, IF HIGH LENGTHEN IT.

          quote:

          I have gotten away with getting the shift point set to my satisfaction by adjusting the throttle linkage rod. I just can't remember which way to turn it right off hand.
          StudeRich
          Studebakers Northwest
          Ferndale, WA
          StudeRich
          Second Generation Stude Driver,
          Proud '54 Starliner Owner

          Comment


          • #6
            OK, I know what the shop manual states, but, if I shorten the rod, with that increase the shift point? IE: shift later?

            Jim
            "We can't all be Heroes, Some us just need to stand on the curb and clap as they go by" Will Rogers

            We will provide the curb for you to stand on and clap!


            Indy Honor Flight www.IndyHonorFlight.org

            As of Veterans Day 2017, IHF has flown 2,450 WWII, Korean, and Vietnam Veterans to Washington DC at NO charge! to see
            their Memorials!

            Comment


            • #7
              I'm pretty sure that shortening the rod raises the pressure which delays the shift point. Try it and see, a little adjusting will make a significant change. I wouldn't shorten it more than a 1/4 inch for starters.

              Tim K.
              '64 R2 GT Hawk
              Tim K.
              \'64 R2 GT Hawk

              Comment


              • #8
                GTTim you are right! Shorten the adjustment delays the shift. I've gone just a bit too far, so tomorrow (after the exhaust cools down) I'll back it off a little and h=get her to shift at about 22-23 mph form 2nd to 3rd.

                Jim
                "We can't all be Heroes, Some us just need to stand on the curb and clap as they go by" Will Rogers

                We will provide the curb for you to stand on and clap!


                Indy Honor Flight www.IndyHonorFlight.org

                As of Veterans Day 2017, IHF has flown 2,450 WWII, Korean, and Vietnam Veterans to Washington DC at NO charge! to see
                their Memorials!

                Comment


                • #9
                  quote:Originally posted by StudeRich

                  Paul, if you are referring to the Carb. to bellcrank linkage rod, that is NOT how you adjust the Trans. press. it adjusts the pedal height, and will affect the throttle press. That's why they tell you to set it at 17/64" clearance to the bellcrank stop screw FIRST, to get 50-80 PSI at idle (550 RPM)in Drive then adjust the rod at the Trans. to 80-85 PSI in Drive with both service and parking brakes locked and wheels chocked. IF PRESS. IS LOW, SHORTEN THE ROD, IF HIGH LENGTHEN IT.
                  Thanks- poor choice of words on my part. I meant the rod that runs to the transmission. What I should have said, was to try a small change in the adjustment until the shift points are better- cumbersome, but a way to do it if you don't have the right tools.


                  [img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/R-4.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64L.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64P.jpg[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/53K.jpg[/img=right]Paul Johnson
                  '53 Commander Starliner (since 1966)
                  '64 Daytona Wagonaire (original owner)
                  '64 Daytona Convertible (2006)
                  Museum R-4 engine
                  Paul Johnson, Wild and Wonderful West Virginia.
                  '64 Daytona Wagonaire, '64 Avanti R-1, Museum R-4 engine, '72 Gravely Model 430 with Onan engine

                  Comment

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