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Technical Gas not going into carburetor

Discussion in 'The Hokey Ass Message Board' started by 440+6, Oct 28, 2016.

  1. 440+6
    Joined: Jul 28, 2015
    Posts: 44

    440+6
    Member
    from Illinois

    When I pump gas into or at least try it does not go into the carburetor. I loosend the fuel line and when i turned the car over gas was coming out of the line. But when i reconnected it there was no gas in the carb. I have also tried pouring two table spoons of gas in the carb and I can't get my engine to start up.
    I'm thinking the needle might be stuck but, I am not exactly sure. I feel stupid for asking about this but I don't know where else to go. Thank you in advance.
     
  2. Torana68
    Joined: Jan 28, 2008
    Posts: 1,443

    Torana68
    ALLIANCE MEMBER
    from Australia

    how do you test for fuel in the carb?
    IF you try one of the "Aerostart" starter sprays dos the car fire?
     
  3. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,756

    Rusty O'Toole
    Member

    Could be a clogged up fuel filter. Look for a filter between the pump and carb. It may not be in the line. Some carbs like Rochester have a filter at the inlet to the float bowl.

    A stuck float or needle valve is also a possibility but unlikely.
     
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  4. Oldb
    Joined: Apr 25, 2010
    Posts: 223

    Oldb
    Member

    If it has not been run for awhile, and If the gas you use has ethanol in it, I would look at the needle and seat. Ethanol will lock it up like glue if it has sat for a while. Been there done that, was able to loosen the needle with some careful prying, had a layer of green bonding it to the seat cavity. Cleaned up and worked fine after.
    Best of luck,

    B
     
    wedjim likes this.
  5. What kind of carb? motor?
     
  6. jeffd1988
    Joined: Apr 12, 2016
    Posts: 537

    jeffd1988

    #1,Look for in line fuel filter. #2you say gas was comeing out of the line wen you pulled it off some fuel pumps the gas can siphone itself out without cranking. #3Then take the line off the carb and check there like post #3 said. #4 could need a carb rebuild #5 bad gas sitten to long could be another problem
     
  7. Like #2 said. 1st assess if the car will even run. It will run just on starter fluid, take air filter off, shoot it into the carb for a few seconds, quickly try to start motor. If it starts keep giving it shots of fluid into the carb to keep it going for a few minutes. This should give fuel pump a chance to draw gas from tank to carb, theoretically it should catch up and run on it's own.

    If this doesn't work you have problems other than fuel.
     
  8. "lightly" tap the top of the carb at the point that the fuel line attaches. use the handle end of a screwdriver to tap it. it may knock the needle/float loose.
    plan on a rebuild regardless.
     
    loudbang likes this.
  9. Some carbs have a filter in the inlet fitting that has one open end and one closed end, and a spring that holds the open end down against a flat surface in the fitting. You can put these in backwards and it plugs off the flow.
     
  10. 440+6
    Joined: Jul 28, 2015
    Posts: 44

    440+6
    Member
    from Illinois

    It´s a 194 chevy and the carburetor is a Rochester R1-BV single barrel.
     
  11. 440+6
    Joined: Jul 28, 2015
    Posts: 44

    440+6
    Member
    from Illinois

    I will try that but i do not need a rebuild i bought the carburetor a few months ago.
     
    tb33anda3rd likes this.
  12. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,591

    theHIGHLANDER
    Member

    Needle/seat is stuck closed. Yes, try the gentle tap with a screwdriver handle but be nice to it, don't beat it like it owes you money. That's a really simple carb and there's not much more that could possibly do that. I don't want to be a prophet of doom but it may happen again later on. Been there, had it happen on a Stromberg EE-2, and it too was a fresh carb with all new parts. Needle stuck without warning and it killed the engine for up to 30 min until things cooled down. The solution was a needle /seat assy from Daytona Parts Co in FL.
    https://daytonaparts.com/daytona-carburetor-float-valve.html
    An elegantly simple solution, cost us just under $20 shipped.
    https://daytonaparts.com/find-your-carburetor-kit.html#
    It seems they service your carb as well, they may have the updated needle/seat for yours too. Good luck.
     
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  13. I think most of us have been where you are now.
    Because you bought a rebuilt does not necessarily indicate it is a rebuilt ..... or that it was rebuilt correctly.
     
    jeffd1988, loudbang and clunker like this.
  14. I just fixed my "rebuilt" carb after $$&&ing with it for years. I took it off and put it into a box. I bought a good core and rebuilt it myself, reusing as much as I could of the old components. Like night and day.
     
    loudbang and bobg1951chevy like this.
  15. Electric fuel pump or mechanical? are you getting gas to the carburetor?
    HRP
     
    Last edited: Oct 29, 2016
  16. Johnny Gee
    Joined: Dec 3, 2009
    Posts: 14,023

    Johnny Gee
    Member
    from Downey, Ca

    Into where on your carb ? The float bowl or down the throttler bores ? This would help out with any confusion as to is it the carb or ignition as to why it won't fire.
     
  17. 440+6
    Joined: Jul 28, 2015
    Posts: 44

    440+6
    Member
    from Illinois

    Float Bowl
     
  18. I think post #12 is your medicine

    But if it were me, before I bought anything I would download a manual, and watch some youtube (. I like these videos), try to just disassemble, clean, adjust, reassemble, reinstall then readjust idle, choke etc.. Won't take too long, will actually be educational, fun and hopefully help you isolate the problem, and go from there. What have you got to lose?
     
    jeffd1988 likes this.
  19. Mr48chev
    Joined: Dec 28, 2007
    Posts: 35,544

    Mr48chev
    ALLIANCE MEMBER

    Before you take it apart unscrew the line and then with a 1 inch wrench unscrew the fitting from the carb that it went into and pull it out and take a look at the filter. Make sure it is installed in the correct direction.
    If everything looks right there then pull the carb off and take the top off and see what is going on.
    If you see something you aren't sure of take a good high resolution photo that shows the details and post it in the thread and one of us can probably figure it out.
     
  20. bchctybob
    Joined: Sep 18, 2011
    Posts: 5,764

    bchctybob
    Member

    Like someone else asked; was it running before or are you trying to start an old engine for the first time?
    Two tablespoons in the bowl probably won't be enough to over flow into the accelerator pump chamber and provide a squirt. If it has a bronze filter in the carb inlet, just take it out temporarily and try again without it. If you get gas thru, then that's the problem. If not, you probably have to take the top off the carb and check for a stuck needle and seat. If there is gas in the bowl but no squirt, the accelerator pump plunger is messed up.
     
    OLDSMAN likes this.
  21. 440+6
    Joined: Jul 28, 2015
    Posts: 44

    440+6
    Member
    from Illinois

    Yes, it was running before.
     
  22. Have you tried any of these suggestions?
     
  23. vtx1800
    Joined: Oct 4, 2009
    Posts: 1,873

    vtx1800
    ALLIANCE MEMBER

    One other thought on installing someone else's carburetor (either rebuilt or just used), always check to make sure all the screws are tight, many years ago a friend picked up a "good" used Quadrajet carburetor (he didn't like the spread more Holley I was running). Now mind you this was a fresh motor with less than 1000 miles on it, we bolted it on, fired it up and very shortly some ugly noises came from the motor. I shut it off quickly. I don't remember how we diagnosed it other than a lot of noise from one side of the motor?? Pulled the head, and a carburetor screw was pounded into the fresh .030 over piston, the piston was ruined, block was too, it actually cracked the block in that cylinder.
     
    clunker likes this.

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