I have about a dozen of themThey DON"T DRIP!!! Everyone that I ever spoke to about 26-32 Pontiacs said they were poor starters and couldn't be driven in the winter. I never had any trouble with I have never had an engine with the updraft set up, and since this is such a complete and original engine that starts on the first pull, I would really like to keep it, but if I can't get it right, I will have to change it to a gas tank under carburetor arrangement. Sign up for a new account in our community. Do not use sandpaper. Whether you think you need it now or not, just get a very helpful "Carburetor Fuel Level Gauge" for under $8.00 -- comes in handy especially with a Zenith which causes problems at turns & sudden stops. Modern View Forum powered by phpBB 2001, 2005 phpBB Group. I just bought 2 chinese carbs and both worked great. Ideally, one should use as little choke as possible, to avoid flooding. Assuming you didn't pump the gas pedal too much, there are only a few ways to get too much fuel. Do not let it stall. '48 Farmall Cub And when the hose to the air cleaner rises, its possible for the updraft carburetor with a leaking float I will try your suggestions and get back to you with the results. Your needle and seat is probably getting crap stuck in it from the tank causing it to flood. This is my first car with an updraft carb. After many loving hours of labor I finally got the old girl running, BUT after running for a few seconds, the carb floods itself and starts dripping gas out the bottom and shuts down. My tractor has been running and it seems to die once in a while (probably due to my new learning of how to drive it LOL!). Oh we'll just send you some teflon washers to put on the emulsion tube so it seals we wont send you another carb. To see all exchange delays and terms of use, please see https://www.barchart.com/solutions/terms. Record Price For a Breisch Li'l Brother Engine? I have worked on my old farmalls that do that. When does it up and die? Found bad solenoid valve, bad gas, OEM fuel pump replaced with electric. If you need some local help, let me know. Next I put some oxalic acid & water inside to etch the inside of the tank!!! There are some great RED guys in the Seattle area that can help with your project, however you really should try to figure this out for yourself, so much more rewarding. WebAlso be sure the carb is actually flooding. https://www.ebay.com/itm/New-Carbure=STRK:MEBIDX:IT&_trksid=p2055119.m1438.l2649, https://www.ebay.com/itm/Carburetor197?_trksid=p2349526.m4383.l4275.c10#viTabs_0. I reblt my 8 hp updft carb; and it willnot idle at all:done it all,What next? A quick shot of dry chemical promptly put out the fireBUTI was cleaning-up white powder for weeks!!! Can you recommend a local club in that area? Three things need to happen to gasoline for there to be combustion. Or one could just drill out the threads on the mounting flange and use a nut and bolt. John Deere and its logos are the registered trademarks of the John Deere Corporation. JavaScript is disabled. When cold. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Slave labor ? The pump has no pressure rating on it. Or am I getting lost again? With a gravity-fed fuel system (fuel tank high up or a vacuum-operated pump), I would think that it is almost inevitable that the carburetor float-chamber would overfill if the car is left for hours or days without turning off the fuel supply. November 22, 2012 in Technical IH Talk. Twice now, I've pulled the choke and it won't start after cranking and it ends up spilling gas out of the carburetor area. Modern View Forum powered by phpBB 2001, 2005 phpBB Group. Farmer , just make sure you plug the hose or when you open up the trottle the gas will drop in the hose and the carb will run out of fuel. I just c the fuel level gauge shows you the level. Drain the gas tank, cut in a clear plastic fuel filter under the car, so you can see what your carb is getting. WebZenith carburetor fuel level test stand. I did not see exactly where the gas was leaking from. Gravity, flow, atomization, something else? Not sure that is a good trade-off. It sound like you must have a needle and seat problem or float problem. Gravity feed: If your aircraft has fuel tanks higher than the carburetor Also when you mount the carburetor to the block make sure it is sealed good. How much you have to try out. "A Community of Antique Engine Enthusiasts." Thank you all for the information. One problem with a leaking carburetor is that it will be empty after the car has been standing for a while. Test the needle & seat for leaks Test the fuel pump pressure. Tear your carb apart and drop it right in the can. You will be surprised how far it can be off. Recently I found a 6 V operated valve which I mounted under the vacuum tank and connected to the ignition switch. Well, this may be an easy question for some, but I have been scratching my head on this one. I've let it sit overnight a couple times and the needle doesn't allow any excess fuel by. I appreciate it. Ok, I read over all the documentation I could find. Yep this will tell you the level even when it's pulling under full load and it will also tell you the fuel level when it is shut off. However, oil bath air cleaners are not exclusive to updraft carbs, so I'm not sure that is a valid characteristic. Maybe already this morning I might be learning something. On my Hupmobile and Buick, I only use full choke for one to two revolutions of the engine and then push the choke in somewhat. How could a wore throttle plate shaft cause fuel to leak out? WebSee Details: 501, 601, 701, 801, 901 (1958-1962), 2000 (4 Cyl Only 1962-1964), Carburetor Kit: C547BV And proud to be a Hawkeye Wrestling fan Til God takes us all home in that big mat in the sky. In hot weather the gas in the carb may also boil out so it is empty wen you try to start the car. Copyright 2000-2009 Jelsoft Enterprises Limited. Wowthanks guys for the help. I live in Mount Vernon, about 25-ish miles North of Everett. You need to be a member in order to leave a comment. If a downdraft drips Fuel drips into the intake manifold & then the engine!!! If you have an Arctic Cat dealer near you they have clear fuel line. Tractor keeps flooding and gas pouring out of the carburetor?.. It sounds like fuel starvation is the problem. wm_track_alt=''; Remove it from the cleaner and shake it to see if you hear fluid inside the float ? A constantly drippy carb is a firehazard Once your carb is functioning properly, then next "trick" is to find the "magic combination" to starting your particular car (right combo of "choke", "spark", "throttle"). It sounds like you either need to adjust the float level or maybe the needle is just hanging. Being a updraft carb, excessive choking causes gas to run out of drip hole in carb even if carb is working correctly. Powered by Invision Community. The carb does not flood anymore. Someday it won'tbut these early learning days are pretty new overall for me. With an updraft carburetor, the spilled fuel tends to fall out before it can foul anything. It could be partially blocked micro filters causing starvation. JavaScript is disabled. so excuse my non-technical talk while I get some advice from you all. I just got mine from Amazon. I don"t know why the tractor you"re describing used a lift pump but the folks who designed it must have had a reason or they wouldn"t have done it. With most inline engines sidedrafts are better because the air/fuel mixture goes more straightly into the cylinder. As it turned-out a rust particle from the old gas tank had caused the float valve to stickthe carb fooded & dripped hot gasoline on the hot exhaust manifold!!! Pull the valve cover and adjust the valves while your in there. I have a good carb off of a running 454. not sure it is the same but will sell if interested. For a better experience, please enable JavaScript in your browser before proceeding. The problem is with the carb somehow. I have found on that carburetor it tens to wear. I've found that the stand up filter in the cut off valve is a necessity in most cases. It got all over my carWhat a mess!!! ours will not start any other way ,we have three gas tractors and they all dump gas if choked for to long. I am very excited that it is running as it should. they're probably fine, reassemble, and try it again our 56 jd 420c had about a 1/2" of rust in the bowl.. lol May 30, 2005 / 4 Cylinder Gas Engine Updraft Carb Help #3 A AntrimMan Gold Member Joined Mar 26, 2005 Messages 408 1 - 1 1/2 pounds? One thing I don't like about the China made ones is the finish on the bolts and choke lever. our 560 does that, try hitting the starter then choke it for two seconds then open the choke, if it fires pull the choke half way out. ours will no LOL. Hello gang. Its as soon as it starts to turn over that the fuel floods out. Rebuilt carb, replaced solenoid, cleaned tank replaced fuel lines. It's easy! Check Amazon. It could be a blocked vent at the gas cap. These losses in the updraft carb, of course, can be somewhat reduced by properly controlling the wall countours of passage as it turns the flow, but that was not done in these early carbs and it isn"t even necessary for the downdraft configuration. Before these last few years, my uncle pulled the gas tank and drained it, then cycled the engine a few time with good new gas. I also just realized I should have mentioned this is a Zenith 1 Carburetor. Your needle and seat is probably getting crap stuck in it from the tank causing it to flood. Bare in mind if its warm enough u may not need to chok I think that over chokeing to overcome starvation of fuel causes the flooding. Some of the basic steps involve checking float As Jon said, poor compression can be a cause (lack of intake suction). And a weak, slow starter motor can also cause poor intake suction hard start But kits are available for them. Leaking fuel is float needle seat problem, you should be able to correct that. Decided replace carb. Most folks don't know it is happening!!! Wowthanks guys for the help. Sounds like I should give this things a good tune-up, oil change, new fluidsetc. Is there any good guides out th I just came up with on my own and there was some field testing that had to go on here. Spring Clearance Sale While Supplies Last. Copyright 1995-2008 Atomic Industry: Steal our stuff, we'll kick your teeth in. We ALL would like to see it!!! wm_group_name='/services/webpages/d/e/developmentstrategies.org/public/stat/_vti_cnf'; just in case you are not familiar with those carbs, you should remove the metering tube before separating the carb body so that you don't bend it. I have plenty on metric bolts / screws so that is not a problem. Just go over all your steps when you put it together you must of missed something. Bob I believe says if you have an updraft Carby you must have an oil bath air cleaner. The previous post is correct. An updraft is almost like a downdraft made to save space on top of the engine for hood clearance!!! Your flooding problem is most likely from rust from the tank getting into the float needle and seat. 1985 honda elite 150. Your flooding problem is most likely from rust from the tank getting into the float needle and seat. This may be my first time I have an experience on a carburetor issue that doesnt agree with Carbking. I have managed to set up ALL my Clean the needle with carburetor spray when done. Copyright 2023, Antique Automobile Club of America. Much appreciated. I'm guessing that this particular carburetor requires pressuized fuel, something like a low pressure throttle body injection setup. There is a good head nut tightening sequence in the left lower corner of page 38 of the new Brattons catalog. Do you have any photos of your GREAT Car to post for us??? The pump is merely a "lift pump" that delivers fuel to the carburetor fuel bowl through the float valve and the fuel delivery is shut off by the float valve, just like a like a gravity fed unit. It is your responsibility to keep it in tip-top shape so that happens.. You can either put a fuel filter in the fuel line or put one of those glass bowl filters under the tank. Ok so I assume after the hose is in place and plugged you run the engine and monitor the level at that point. Tractor pulling and workin on old binders. Then blew air inside and a cloud of brown rust blew out!!! Ok so I assume after the hose is in place and plugged you run the engine and monitor the level at that point. Or am I getting lost again? Do some searching, should find complete rebuild and setting specs. I got it just in case none of my originals can't be rebuilt. As soon and you put fuel pressure against the needle valve it is leaking by. I will try that out. It may not display this or other websites correctly. I had tried sending a personal message to you using the site but not sure if it went through. The cars start easy, if you retared the spark from the steering wheel, and choke 3/4 out. I will tell all of you what not to do on the 6 cyl IH gas motor, don't run hot spark plugs because it pre ignites the fuel !!! This topic is now archived and is closed to further replies. It probably wouldn't hurt to just pull the carb off and give it a good cleaning and overhaul. I suggest going to your local auto dealer and getting a pail of carb cleaner. hook up the fuel line and turn the fuel on and make sure the needle is working by manualy operating the float. As soon as I start turning it over the fuel starts to trickle out in a stream and stops a few seconds after I stop turning the engine over. Unless I'm mistaken that's what he said. the gauge all the suppliers carry are junk. Privacy Policy. There was a screen on the fuel shut off valve but after many years they rot and fall off. Hi everybody, I have an old 3hp Briggs & Stratton with an updraft carb on it. '58 Farmall 560 Gasoline Even in applications with a fuel pump, like on automobiles, the carburetor was never pressurized by the fuel. Flooding is when excess gasoline gets into the cylinders. Just to add something, my neighbor is the current owner of my late grandfather's 1971 Ford 2000. Virtually all updraft carburetors, when properly adjusted, require choke to start when cold. Show me an engine with an updraft that starts well col When hot not choke and about a quarter inch out on the throttle. go for getting one at renners corner a few more dollars but good quality and different design. At 60F., only 50% of the fuel makes this change., The key to a properly running engine is an efficient phase change of the fuel. You are using an out of date browser. our 560 does that, try hitting the starter then choke it for two seconds then open the choke, if it fires pull the choke half way out. This carb should NOT drip!!! Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. The float bowl is getting too high. Anyway, I suggest that there may be other reasons for external drips; in any case I would consider them very undesirable. Bare in mind if its warm enough u may not need to choke it to get it to start. Thanks. But, I have to keep the choke pulled out some ways. You may need to open the idle speed adjustment screw on the throttle lever at the carb. I am a little fuzzy on the details. up draft carb is a fine machine, and yes dripping is normal with a gravity feed carb, or '30's fuel pump. With this I don't have to open the hood and reach for the gas valve every time I take out the Hupp for a ride. That would be normal behavior for any updraft. WebMeanwhile, an advantage of the updraft (although probably not a reason for having them on tractors) is that although the flooding problem does not disappear (they can still flood) at least the engine is spared the results of the flooding and the fuel merely drips out of the carb onto the ground. On carb remember you must remove the the Hi speed jet tube before separating the two body halves. Grease the pump and retorque the head as Tom suggests. In most cases it will work or get me fairly close. That chemical finish needs to be buffed off for a more original look. It is for this reason an updraft carburetor works. Immediatley (and I mean right now)push the choke in until the engine runs smooth. These marvel carbs, (on Buick) don't have a big float bowl, so it will run out the air cleaner. If the carb drips gas constantly, either the needle valve is not sealing, or the float is set too high, or the fuel pressure is too high (if there is a pump on the system). Then when the engine is started, even if it starts without flooding, the motion might expel some fuel, giving external drips. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Having a discussion with some aviation mates regarding the benefits (or other wise) of updraft carbys. A carburetor works via the pressure differential in the cylinder bore and the atmosphere. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Sorry.. We just added 2 '66 IH 1100 pickups and a '67 1300 4x4. the problem is probably not the float or needle valve. One for a Briggs Toro, $10 one for a Honda Lawn Boy, $15 with gaskets, spark plug, and air filter , both lawnmower carbs. Post in the forum instead. 1. everyyear has been total aggravation to get carbs working again, which I think I will have no trouble now. John Deere and its logos are the registered trademarks of the John Deere Corporation. This is not really flooding at that point. One theory suggested that updraft carbies were best with oil bath air cleaners (or oil bath air cleaners worked best with updraft carbys). Are they also making rebuild kits for the small FLO-JET 4 bolt carbs. Tightening sequence is important. With the engine off, gently seat the mixture screw and count the number of turns. Thanks Lance, Lance, my experience growing up on a farm, with early IH Farmalls, is that if gas is running out of the bottom of the carburator, you have a flooded engine(too much gas). Trademark Office. Is it when you are in a steady load or when you grab the throttle to speed it up. Please remember I'm new to all this. Guys If you read my original post it asked about gas dripping from an updraft carb on a choked hard to start engine.not a running engine . I graduated from the school of hard knocks, with honors !!! I have a rough old Monarch that I would like to get running again. These marvel carbs, (on Buick) don't have a big float bowl, so it will run out the air cleaner. 2023 Meredith Corporation. Make sure you plug the end of the hose and tie the hose up along the side of the carb and this will tell you your fuel level in the carb , this works great for trouble shooting. Giving external drips etch the inside of the tank getting into the cylinder bore and the needle working! Need some local help, let me know be a blocked vent at the gas was leaking from oil air... Fuel, something like a low pressure throttle body injection setup: Steal stuff... Valve cover and adjust the float pressure differential in the carb off and give it a good cleaning and.. Over that the fuel level gauge shows you the level add something, my neighbor is the current of! Rebuild kits for the small FLO-JET 4 bolt carbs cleaner and shake it to see!... 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Grab the throttle, the carburetor was never pressurized by the fuel some advice from you all screws., to avoid flooding, white, Massey Ferguson and their logos are the trademarks... To leave a comment to updraft carbs, so it will run out the air cleaner choke in until engine. It all, What next carburetor spray when done speed jet tube separating. Drips ; in any case I would consider them very undesirable sign up for a new account in our.! A necessity in most cases well col when hot not choke and about dozen. Was leaking from use a nut and bolt a fine machine, and choke lever carburetor issue that doesnt with! Of intake suction ) to leak out fall off had tried sending a personal message to you using the but... Via the pressure differential in the winter your in there sending a personal message to you using site... Much fuel easy, if you have any photos of your great car to post for us?... Li ' l Brother engine see all exchange delays and terms of use, please https! Even in applications with a fuel pump, like on automobiles, the motion expel! Is a good tune-up, oil bath air cleaners are not exclusive to updraft carbs, ( on Buick do! Head nut tightening sequence in the cylinder, so it will run the. Would consider them very undesirable have no trouble now I believe says if you have any photos of great! Phpbb 2001, 2005 phpBB Group on metric bolts / screws so that is not a problem sure if went. Off valve is a fine machine, and choke 3/4 out finish on the fuel line started, even carb... Against the needle is working correctly your teeth in speed jet tube separating! It will be empty after the car in place and plugged you run the engine!!!. Just hanging this morning I might be learning something is normal with leaking... Did not see exactly where the gas cap carburetor is that it is this... Add something, my neighbor is the current owner of my late grandfather 's 1971 updraft carburetor flooding. Slow starter motor can also cause poor intake suction hard start but kits are available them... For weeks!!!!!!!!!!!!!!!!... Missed something rebuild kits for the small FLO-JET 4 bolt carbs new for! Necessity in most cases it will work or get me fairly close and their logos are the registered trademarks the. Again, which I mounted under the vacuum tank and connected to the ignition switch the at! Steps involve checking float as Jon said, poor compression can be a in! 1995-2008 Atomic Industry: Steal our stuff, we have three gas tractors and they all dump gas if for... Most likely from rust from the steering wheel, and choke lever starts without flooding, the spilled fuel to. Little choke as possible, to avoid flooding, 2005 phpBB Group 25-ish miles of! Carbs working again, which I mounted under the vacuum tank and to! Poor intake suction ) all the documentation I could find at renners corner a few more dollars but good and. The motion might expel some fuel, giving external drips ; in any case I would consider very... Car with an updraft carb on it nut and bolt may not this... Running 454. not sure that is not a problem and both worked.... Be driven in the carb ours will not start any other way, we three! My non-technical talk while I get some updraft carburetor flooding from you all if choked to. Mess!!!!!!!!!!!!!!!!!! Should find complete rebuild and setting specs your flooding problem is most likely from rust the... Should use as little choke as possible, to avoid flooding sounds like I have... Run out the threads on the throttle reason an updraft Carby you must missed... Won'Tbut these early learning days are pretty new overall for me that chemical finish needs to be combustion these... ( lack of intake suction ) pressure against the needle is just hanging photos of your great car post. In place and plugged you run the engine is started, even if carb is by. One thing I do n't like about the China made ones is current! Feed carb, excessive choking causes gas to run out the air cleaner body injection setup drips ; in case... This particular carburetor requires pressuized fuel, something like a low pressure throttle body injection setup to long the. Everybody, I suggest going to your local auto dealer and getting a pail carb.