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Thread: 49 Champion fuel issue

  1. #1
    Champion Member
    Join Date
    Jun 2017
    wildomar, california

    49 Champion fuel issue

    I can't seem to get the engine started without first priming the carb. Once started it runs fine. Shut it off, same deal, prime again. I've had the tank refurbished installed new steel lines and AN fittings. Does level of fuel in the tank make a difference?
    Contemplating replacing the mech. pump with an electric pump. Any advice on what pump to use? I'd like to have a puller pump under the hood instead of a pusher pump at the tank.

    Any ideas are appreciated......Thanks H. Smith

  2. #2
    President Member TWChamp's Avatar
    Join Date
    Dec 2014
    I bought 2 Holley rotary vane pumps and a Carter (Precision brand) rotary pump, and they work fine mounted where the old mechanical pump was mounted. This new gas evaporates too quickly, so the engine heat boils it away into the intake or evaporates into the air.

  3. #3
    Silver Hawk Member Chris Pile's Avatar
    Join Date
    Oct 2004
    Wichita - The Air Capital of the World
    ^^^^^ Basically, what he said.^^^^^

    This new gas isn't anything Studebaker ever foresaw. Adding an electric fuel pump has cured this trouble for me on a couple Studebakers. Put the switch under the dash, and you can turn it off after the engine has started.
    The only difference between death and taxes is that death does not grow worse every time Congress convenes. - Will Rogers

  4. #4
    President Member thunderations's Avatar
    Join Date
    Nov 2012
    Phoenix, AZ
    Could you have a bad accelerator pump in the carb, not giving that squirt of fuel to prime the carb?
    1966 Daytona (The First One)
    1950 Champion Convertible
    1950 Champion 4Dr
    1955 President 2 Dr Hardtop
    1957 Thunderbird

  5. #5
    Speedster Member
    Join Date
    Nov 2013
    Goldendale WA
    My 49 Champion had problems, found a pinhole in frame to pump hose, it was original hose. But I installed a electric pump by tank also for hot starts when fuel seems to boil in carb. Ok now, but sure something will come up with alky/fuel. Now about self driving cars and alky/fuel, sounds like DUI to me.

  6. #6
    President Member
    Join Date
    Jul 2013
    Shorewood Illinois
    Blah, blah, blah. Mask the real problem and install electric pump. Fix it to run as designed .

  7. #7
    Golden Hawk Member StudeRich's Avatar
    Join Date
    Dec 2005
    Ferndale, WA, USA.
    It will not cold start if the Choke is wide open and the accelerator pump are shot.

    The Fuel pump is likely fine and a fresh AC or AC style pump like you probably have, would work for a back-up "Spare".

    Airtex replacements for Champion 6 Engines have Never been a problem, so that also works.
    Second Generation Stude Driver,
    Proud '54 Starliner Owner

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