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  1. #1
    New Member
    Join Date
    Sep 2011
    Posts
    1
    Tractor
    cub and frmall a

    Default farmall A..no gas to cylinders

    Pulled, clean and soaked carb in carb cleaner. Air blow jets.
    Checked floats.
    Still no gas getting to cylinfders..does get to carb
    If i spay either in air cleaner, it fires tight up, and if i continue to do that, it runs fine (well, i only use a few sprays, so i let it run for 10 secs or so)
    taped on carb to make sre no dirt is lodged.

  2. #2
    Gold Member
    Join Date
    Mar 2007
    Posts
    398
    Location
    WNY
    Tractor
    NH T1510 Hydro

    Default Re: farmall A..no gas to cylinders

    The sediment bowl is not plugged...... ? May the needle and seat be sticking?

  3. #3
    Silver Member
    Join Date
    Oct 2008
    Posts
    106

    Default Re: farmall A..no gas to cylinders

    I just did the same to the carb on a 140. You say there is fuel flowing to the carb. On most of these carbs there is a screen on the 90 fitting that screws in the carb. Try unscrewing the plug from the fuel bowl to be sure fuel is in there. Are you having to use the choke? If you are still not getting fuel then you have an airleak or a jet is clogged.

  4. #4
    Silver Member
    Join Date
    Oct 2008
    Posts
    106

    Default Re: farmall A..no gas to cylinders

    The airscrew for mine to run is at 1.5 turns.

  5. #5
    Elite Member 5030's Avatar
    Join Date
    Feb 2003
    Posts
    4,866
    Location
    Michigan, S.E. Monroe County
    Tractor
    Kubota M9000 Hyd shuttle/Massey 1085

    Default Re: farmall A..no gas to cylinders

    I had one years ago, and Marvel-Scheibler carbs (updraft) are simple but tempermental. Sounds to me like the fuel intake screen as well. I took mine off, fabricated a 'U' bent pipe and mounted a single throat automotive carb.
    Kubota M9000HDCC3
    Kubota 105S
    "If haying was easy, everyone would do it. It isn't."

  6. #6
    Gold Member
    Join Date
    Nov 2003
    Posts
    348
    Location
    Pleasant View, TN
    Tractor
    Mahindra 3325

    Default Re: farmall A..no gas to cylinders

    Might be a stupid suggesting but is fuel line turned on? Is fuel getting to carb?

    Don
    Country Life Beats Working.

    Less than 1 month to Retirement

  7. #7
    Elite Member sandman2234's Avatar
    Join Date
    Dec 2005
    Posts
    4,091
    Location
    Jacksonville, Florida
    Tractor
    JD2555

    Default Re: farmall A..no gas to cylinders

    It gets to carb, but not to manifold, then there is something stopping it at the carb. Not familiar with an A but carbs are carbs, and if the float is allowing fuel into the carb (into the bowl) via the needle and seat, then a good chance it is the jets.Is there fuel in the bowl when you remove it? Can you raise the float and gas comes in the bowl thru the needle valve? Might be something else like the engine isn't pulling enough air thru the carb... missing gasket on carb, blockage etc, but most likely a jet problem.
    David from jax
    A serious accident is one that money won't fix.

  8. #8
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    46,360
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: farmall A..no gas to cylinders

    if there is a bowl drain, remov eit and rab on carb to make sure flaot is not hung up / sticking.

    soundguy

  9. #9
    Elite Member sandman2234's Avatar
    Join Date
    Dec 2005
    Posts
    4,091
    Location
    Jacksonville, Florida
    Tractor
    JD2555

    Smile Re: farmall A..no gas to cylinders

    Quote Originally Posted by Soundguy View Post
    if there is a bowl drain, remove it and rap on carb to make sure float is not hung up / sticking.

    soundguy

    And don't use a 3 pound hammer to rap on it... just a few light taps to see if that starts the gas flowing.
    David from jax
    A serious accident is one that money won't fix.

  10. #10
    Super Member flusher's Avatar
    Join Date
    Jun 2005
    Posts
    6,207
    Location
    Northern California-Tehama Co.
    Tractor
    2008 Mahindra 5525, 1964 MF-135 diesel, 1951 Farmall Super A, 1951 Minneapolis Moline BF, 1945 Oliver 60 Row Crop, 1949 JD B widefront

    Default Re: farmall A..no gas to cylinders

    Quote Originally Posted by sandman2234 View Post
    It gets to carb, but not to manifold, then there is something stopping it at the carb. Not familiar with an A but carbs are carbs, and if the float is allowing fuel into the carb (into the bowl) via the needle and seat, then a good chance it is the jets.Is there fuel in the bowl when you remove it? Can you raise the float and gas comes in the bowl thru the needle valve? Might be something else like the engine isn't pulling enough air thru the carb... missing gasket on carb, blockage etc, but most likely a jet problem.
    David from jax
    I'd also check the input manifold seal for leaks.

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