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Vacuum line from sealed carb to gauge on dash

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  • Speedo / Tach / Gauges: Vacuum line from sealed carb to gauge on dash

    My vacuum pressure gauge is not working and one of the problems is the vacuum line has gone AWOL. I suspect that the line, of which size I have no idea, connects somewhere on the carb which is a sealed Carter for r2. Need to know exactly where it connects (exactly) and size so I can replace it. Thanks in advance

  • #2
    You did not state what car, so I'll assume it is a 63-4 Avanti. (I assume that a 63-4 R2 Lark or Hawk would be the same.) I have a 64 Avanti R2 which had been meticulously maintained as original by the previous owner. I have not changed anything.

    Anyway, the vacuum hose for the vac. gauge does not connect to the carb.; it connects to a 4-way iron fitting on top-rear of the intake manifold. The rubber hose that connects to it (thru a brass fitting) is just slightly under 7/16" in O.D. This rubber hose goes right up to the firewall, then connects to a metal pipe (line) that goes through he firewall and on to the gauge. See the attached pic.
    --Dwight
    Click image for larger version

Name:	Avanti 1964 R2 sn_R5255 20201113 (2).JPG
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    • #3
      Here is a closeup of the iron fitting where the vac. gauge hose connects. The hose with the green clamp is the vac. gauge hose.
      --Dwight
      Click image for larger version

Name:	Avanti 1964 R2 sn_R5255 20201113 (3).JPG
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      • #4
        Thanks Dwight, Now I will have to really look at this sucker.Yes it is a 63 R2 a previous owner removed supercharger and just hooked up the existing carb and never swapped out anything else. I am actually glad because I am trying to find all supercharger, blower and everything else to bring it back to original. Thank You Sir! Pictures, Great!

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        • #5
          I once had a similar task as you. I bought a 63 Avanti (originally an R2 car) with no engine and wanted to return it as close as possible to original. I had a basement full of Studebaker parts, so the raw materials were there. So, every time I went to an SDC show I photographed engine compartments from all angles. I photographed only cars that the owner said were original or authentically restored.

          Note that 63 & 64 Avanti R2 engines were a little different, mainly in the fuel system (return line from engine to fuel tank, and fuel filter). If you want I'll take more pix of my 64's engine and post them. Not much trouble at all.
          --Dwight

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          • #6
            FWIW, a pressure/vacuum gauge which has been idle for years may be sluggish and gummed up from lack of use. I alternate low pressure air and a hand vacuum pump to exercise the internal movement and usually the gauge will free up.

            jack vines
            PackardV8

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            • #7
              I appreciate anything I can get to help me out, I have a lot of questions and will have regarding this car. When I was a young man out of the service my 1st car was 1967 RS/SS Camaro 350. Then I got hooked on the 69-70 Olds 442's. Couldn't afford to keep any of them as my young children preferred food on the table and roof over their head. Going on 72 now I finally have the car I always wanted but really never pursued them until I got my current one. It is nice and I didn't realize it was an original R2 until I started getting some paperwork on it. It is outfitted with square headlights but don't know how that happened. The original owner sold it in an estate sale and I don't know if he was even alive. I own it now and I think it is criminal that the Supercharger was removed and replaced with AC. Thank y'all for the information. I love the long hood, Reminds me a lot of a 73 XKE 2+2 I owned in 2008. Same feel. The no PWR Steering sucks too. My son who is 34 really has his eyes on it..

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              • #8
                Glad you finally got the car you always wanted. It is possible to have both the supercharger and the AC. Modern rotary compressors are much more compact than the old York dinosaurs. A search here will find several different mounting methods.

                Originally posted by tadamsr2 View Post
                The no PWR Steering sucks too.
                That's often the wrong tire/wheel choice or an ungreased suspension. Get a Studebaker Shop Manual; there are several fittings which are difficult to see. Use an air-powered grease gun and put that 34-year-old son to work. There are enough grease fittings on a Stude, a 72-year-old should be sitting down, reading the Shop Manual and directing the project. Put the front end on jack stands. Clean all the hardened crud off all of the grease fittings. Lube each fitting, cycle the wheels full left to full right and lube it again. A properly lubricated car will be guaranteed to steer better.

                Then, take the Avanti and the Shop Manual to the best alignment shop in town. A properly aligned car is guaranteed to steer better.

                What size tires and what wheels are on your car? What tire pressures are you running? The correct tires and wheels make all the difference in how a non-PS car feels.

                jack vines

                PackardV8

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                • #9
                  Originally posted by PackardV8 View Post
                  Glad you finally got the car you always wanted. It is possible to have both the supercharger and the AC. Modern rotary compressors are much more compact than the old York dinosaurs. A search here will find several different mounting methods.

                  That's often the wrong tire/wheel choice or an ungreased suspension. Get a Studebaker Shop Manual; there are several fittings which are difficult to see. Use an air-powered grease gun and put that 34-year-old son to work. There are enough grease fittings on a Stude, a 72-year-old should be sitting down, reading the Shop Manual and directing the project. Put the front end on jack stands. Clean all the hardened crud off all of the grease fittings. Lube each fitting, cycle the wheels full left to full right and lube it again. A properly lubricated car will be guaranteed to steer better.

                  Then, take the Avanti and the Shop Manual to the best alignment shop in town. A properly aligned car is guaranteed to steer better.

                  What size tires and what wheels are on your car? What tire pressures are you running? The correct tires and wheels make all the difference in how a non-PS car feels.

                  jack vines
                  Couldn’t agree more, Jack.

                  With the good advice from others here, I swapped out the 215/75-15s off my Champ for the 6.70-15 bias ww’s it was more or less born with and it was just like having power steering installed.

                  While one loses contact patch and therefore braking traction, one gains that back as significantly less turning resistance!

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                  • #10
                    Check your PM's
                    64 GT Hawk (K7)
                    1970 Avanti (R3)

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                    • #11
                      I'll have to check tire size and post.. Thanks y'all!

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                      • #12
                        It must be remembered also that unfortunately, unlike ANY other Studebaker, Avantis had a "Quicker" Steering Gear instead of a "Slower" one on Non-Power Steering equipped Cars.

                        So instead of making it easier to turn on a heavy Car like they did on Convertibles and Sliding Roof Wagonaire's by using a "Slower" Ratio Steering Gear on Manual Steering, they did just the Opposite on Avantis!

                        The thinking must have been; that anyone who would special Order an Avanti WITHOUT Power Steering on a Heavy & Nose Heavy Car like that MUST have been Planning on Road Racing, seriously "Spirited Driving" or something and Probably also ordered an R2 Engine, 4 Speed Trans, Heavy Duty Springs, Shocks and Twin Traction.

                        Just to be SURE, I would check that Steering Ratio out to see if it MIGHT have came with Power Steering and had it removed like the Supercharger.
                        StudeRich
                        Second Generation Stude Driver,
                        Proud '54 Starliner Owner

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                        • #13
                          Rich, can you check the steering ratios please? IIRC, the Avanti had 16:1 for power steering and 22:1 for manual. Additionally, the GT Hawk had the same ratio regardless of manual or power steering.

                          Of course, my memory could be faulty. I am out of town and cannot check the books at the moment.
                          78 Avanti RQB 2792
                          64 Avanti R1 R5408
                          63 Avanti R1 R4551
                          63 Avanti R1 R2281
                          62 GT Hawk V15949
                          56 GH 6032504
                          56 GH 6032588
                          55 Speedster 7160047
                          55 Speedster 7165279

                          Comment


                          • #14
                            That sounds correct, I did not mean to imply and don't think I did, that Larks and Hawks had different Ratios Power to Manual, but Heavier Lark s and Lark Type Models DID.

                            I did learn something from my quite accurate '64 Showroom Book though. (No Avanti Specs)
                            With the Ross Manual Steering in the Hawk, it is just a hair quicker than the Recirculating Ball, Saginaw Steering Box in the Lark Types.
                            Hawk = 4.6 Turns and Lark = 4.7 Turns. Convertible & Wagonaire 5.2
                            StudeRich
                            Second Generation Stude Driver,
                            Proud '54 Starliner Owner

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                            • #15
                              So, power steering Avantis did have quicker steering, 16:1, than manual @ 22:1. Of course, as I understand it, you could order 16:1 manual steering.
                              78 Avanti RQB 2792
                              64 Avanti R1 R5408
                              63 Avanti R1 R4551
                              63 Avanti R1 R2281
                              62 GT Hawk V15949
                              56 GH 6032504
                              56 GH 6032588
                              55 Speedster 7160047
                              55 Speedster 7165279

                              Comment

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