Any help? done this on many old tractor carbs to make them purr again. Check the inside of the distribution cap and rotor for carbon tracking and or corrosion at the distribution spark contacts. you will need to open up the main jet , if it is adjustable & already out to the limit . Once plugs have been cleaned and fuel adjustment rod is removed, engine starts and runs fine for approximately 20 minutes, then starts rough idling and finally stalls. With the. Works great on my 1949 9N. "@type": "Organization", I have to back the throttle way off back down to idle to keep it running, then when I advance it again it starts lurching again. Reviewed in the United States on July 10, 2022. If you don't have it, you have to get it before you can properly diagnose a fuel problem. If you need the choke out when the engine is warm, you have a fuel starvation issue. engine warm you can fine tune the mixtures. I just changed the governor and that helped but I still didn't have enough power to run my brush hog. The dying after 20 minutes suggests either a coil going bad (overheating) or blocked fuel screens. When you increase the RPM's the points tend to float and cause you to loose power making you think you have carburetor problems since your having to pull the choke knob. The carburetor came assembled and ready to use, which included bench tuned. Would appreciate any help or ideas anyone has about the cause of the problem. great product. "interactionStatistic": { Reviewed in the United States on June 19, 2020. Head gasket and intake gasket have been replaced. He used the OEM arm, and re-assembled. Start the. Hard to re-start. }, The Rubbing blocks on the points are wearing and your gap is decreasing. Here's the thread about my governor problem. Now it doesn't seem to matter what I do or adjust. Wire breakdown will be especially noticable in damp weather and or under load. Please make sure that you are posting in the form of a question. If a replacement does NOT fix the problem, then you may have an extra 'good' coil. Good luck. When I adjust the idle mixture screw all the way in, it doesn't stall.. If the ignition timing is too retarded you can get backfiring through the carb and will cause low power. I climbed into the seat and she fired right up! Dell reminds us that most fuel problems are solved by fixing the electrical system.
Please use the navigational links to explore our website. What a difference this carburetor made on my 1948 Ford 8N! For a better experience, please enable JavaScript in your browser before proceeding. "width": 200,
problems with both carbs on both tractors. If you don't have it, you have to get it before you can properly diagnose a fuel problem. It will soon be cleaning time I think for your machine. }, If you have the actual spec., use a drill bit of the proper size as a gauge to measure from the top of the float to the gasket surface. Still stalling out and running rough when I turn the throttle up. { When running, engine backfires through intake and runs rough and has no power. Replaced carburetor with new one and still have the same problem. Looks like I need to check my points. Use a new gasket when you mount the carb to the manifold. }, "logo": { been fighting my old shebler for a couple years now finally took the leap and for $100 and 5 minutes i am back to running like new with my 8n. "author": { A buddy of mine did a complete rebuild on his 9N last year, and I found a place that had the internals at a much more reasonable price. For a better experience, please enable JavaScript in your browser before proceeding. If the rpms rev higher you could be sucking air. It lives again! Commit thy way unto the LORD; trust also in him; and he shall bring it to pass. If the rpms rev higher you could be sucking air. Would appreciate any help or ideas anyone has about the cause of the problem. I only wanted a fresh new look but something isnt right twice. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", They can break down with age, shorting or cross firing when the electrical resistance in the wire covers goes bad. Re-assemble and test again. ign switch - - jumper around it when symptoms occur, condenser - - known to be bad right out of the box. My ford 8N started right up with hardly an adjustment. Will not affect the operation of the carb but will allow unfiltered air into the intake if not plugged. So I took off the air cleaner tube, sprayed it all down with carb cleaner and blew it out. Thanks to everyone that posted a reply to our problem, which turned out to be in the distributor. Next, set the idle speed. If a replacement does NOT fix the problem, then you may have an extra 'good' coil. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Yes, I got a whole new aftermarket governor. The distributor was new to the engine as described in the original posting, but more precisely was a used distributor and apparently possessed problems of its own like the original. Your recently viewed items and featured recommendations, Select the department you want to search in, I'm so glad I read others reviews before I purchased this carb, Reviewed in the United States on August 29, 2016. IN is rich, OUT is lean! "headline":"1941 Ford 9N Carburetor problems ", Trademark Office. gas inlet. The large screw adjusts the power circuit mixture, adjust it at operating rpms and normal engine temp. "datePublished": "2003-03-31",
After thoroughly reading a manual that was ordered, we removed the distributor, dislodged the frozen plate and adjusted the timing with a straight-edge in accordance with the manual. Idle mixture is BACKWARDS from most automotive carbs, as it controls AIR bleed, not fuel. The distributor was new to the engine as described in the original posting, but more precisely was a used distributor and apparently possessed problems of its own like the original. Spark plugs are wet with fuel when removed. The main jet should be at 1 to 1 1/2 turns out from seated as a starting point try it then if it stalls open the jet a 1/2 turn and try again. Once upon a time it was a brass plug filter - similar to the old brass fuel filters used in GM (Rochester) carbs. engine picks up smoothly. Russell Rigsby Thanks to everyone that posted a reply to our problem, which turned out to be in the distributor. So I bought a new governor, installed it and now the tractor misses, idles rough, and when you advance the throttle acts as if its not getting enough fuel. If it, "coughs" or "stutters" unscrew the main screw about 1/8 of a turn and repeat until the. I had to bump mine up a half turn. It is either poor timing (too advanced) or an intake value that is stuck/bent. What would cause this? The timing indicator tab on the exterior of the distributor under the adjustment bolt was missing and subsequently there was no way for us to have known it was supposed to be there and the timing to be located at the far other end from where it was. One little problem were the mounting studs and nuts, too soft and would not hold torque . }. It would stall as soon as I dropped it in the grass. I was able to immediately bolt it up connect and start the tractor. Carborator was replaced on my Ford 8N during a minor refurbishment.
John Deere and its logos are the registered trademarks of the John Deere Corporation. The cost was minimal for the piece of mind to rule out the carburetor as a potential problem.
Check plug wires..Firing order is 1243..These motors will run if the wires are crossed.. Enter Our Dog Days of Summer BBQ Giveaway Now! Any attempt to replace the fuel adjustment rod while running stalls the engine. Nothing lose or leaking, that I can see anyway. OK, I got my $6 part at the JD dealer yesterday. I have had the experience that as the filter or settling bulb plugs or the fuel line gets obstructed or the carburettor with out any of these items gets grit into the jets a little choke becomes necessary to pull the gas through to keep the engine running. Turn the idle air screw in or out until you find the points where it, starts to run rough (too rich and too lean a mixture) then put the screw halfway between. My '49(?) started right up. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. window.dataLayer=window.dataLayer||[];function gtag(){dataLayer.push(arguments);}gtag('js',new Date());gtag('config','G-04SJ2KTSCK',{cookie_flags:'max-age=7200;secure;samesite=none'}); Welcome! Of course I could be wrong, but you have the exact same symptoms that I had. You must log in or register to reply here. Make sure the resistor is wired correctly and that it's good, put on a new coil. It only takes about a minute or two for the bowl to fill when you want to use your tractor, but this will definitely help to keep the crud from forming on the float, Hope this helps! } Mike The part about running rough after it heats up are symptomatic of a bad coil,however since you said it does restart but hard I wouldn't rule out a crack in the manifold either.This can be checked by spraying a little wd40 or carb spray around the manifold while its running.Be careful. "dateModified": "2003-03-31", if anyone is like me and skeptical about trying online products, think no longer for this one. For a better experience, please enable JavaScript in your browser before proceeding. Closer inspection revealed a recessed screw had fallen out. Make sure you've thoroughly checked you ignition for nice whiteish/blue spark. "url": "https://www.yesterdaystractors.com/graphics/smllogo.png", hth MountainmanCA Dell reminds us that most fuel problems are solved by fixing the electrical system. Of course I could be wrong, but you have the exact same symptoms that I had. I know its gettin fuel to the carburator because it has a new gas sediment bowl thats full of fuel. I had a carb like that on a fegurson that I onced owned. As the others have said firing order, bad valve. COIL!!! "@id": "https://www.yesterdaystractors.com/" Pull a plug wire and check the color of the spark and tell us if it is blue or yellow. As the others have said firing order, bad valve. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. Mike Check plug wires..Firing order is 1243..These motors will run if the wires are crossed.. I had a 8N that did the same thing, I found the main adjustment threads waowed out and sucking air, new carb fixed the proplem. } Check plug wires..Firing order is 1243..These motors will run if the wires are crossed.. Reviewed in the United States on April 29, 2019, very nice fit, looks great. Would order again. Ignition systems often will idle ok but breakdown when a load is put on them. After thoroughly reading a manual that was ordered, we removed the distributor, dislodged the frozen plate and adjusted the timing with a straight-edge in accordance with the manual. "@type": "InteractionCounter", Though that doesn't explain the 20 minutes which is more common with a bad coil. "@type": "ImageObject", Engine runs extremely well now and has plenty of power. We discovered it by seeing it in a picture in the manual we received. I will go play with the main mixture and see if I can get it to work. Very impressed and look forward to getting to work pushing snow. Come join the discussion about specifications, modifications, troubleshooting, maintenance, and more! Make sure the resistor is wired correctly and that it's good, put on a new coil. I use it for mowing and plowing snow. The engine fired right up with the carburetor jet in place and all adjustments were working properly. If the float is, hanging up, the valve won't seal and air will always pass. Engine runs extremely well now and has plenty of power. Fresh fuel and a thorough clean of every part of the carb, and see that there is good fuel-flow to the carb. Hope it helps, Al The part about running rough after it heats up are symptomatic of a bad coil,however since you said it does restart but hard I wouldn't rule out a crack in the manifold either.This can be checked by spraying a little wd40 or carb spray around the manifold while its running.Be careful. If spark is good, you should have detonation of fuel UNLESS your compression is bad or if timing is way, way off. thanks again to everyone who offered their help and advice. No need to purchase the suggested Tisco 9N9553 Strainer Assembly, the carb comes with it, along with spark plugs, points studs, nuts, 3 gaskets and a rubber hose I haven't figured out yet. The timing advance plate was frozen solid due to corrosion and was stuck in a position that caused the timing to be extremely retarded. Always consult equipment operator's manual and follow safety instructions before operating or servicing any tractor or equipment, or attempting any task. screw until the engine is running at 400 rpm. I'm so glad I read others reviews before I purchased this carb. You can go that route until it quits and then clean it.you can also reduce plugging by cleaning additives added to the fuel. If a replacement does NOT fix the problem, then you may have an extra 'good' coil. Went back through all three adjustments on the carb. Had to use old ones . I would take the carb to them & show them the part you need. Installed perfectly just like the old one . I had to turn the main jet needle almost all the way out ta get the motor to run smooth without using choke. We discovered it by seeing it in a picture in the manual we received. I removed the lower body, and reinstalled with a temporary plug, but now misses badly. redid all the electrical. TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. He finally tore the governor apart, and discovered the cross drilled hole in the lever shaft the thrust fork pins too, was way off, compared to the OEM arm. JavaScript is disabled. In that position, it was necessary for the carburetor to dump as much fuel as possible into the engine just to keep it running and was the cause for the plugs gas-fouling after 20 minutes or so. put on a newer carb from a different 8n that ran good 3 years ago before parked, when I went to start, it would bog down if I didnt have the choke half way out. will take apart carb and inspect it after I get the hydraulics put back together on the tractor. You are using an out of date browser. -Psalm 37:5-. The timing indicator tab on the exterior of the distributor under the adjustment bolt was missing and subsequently there was no way for us to have known it was supposed to be there and the timing to be located at the far other end from where it was. no adjustments needed and fires right up. After viewing product detail pages, look here to find an easy way to navigate back to pages you are interested in. Copyright 2000-2020 by, SmokStak Steam Traction and Tractor Forums. It is either poor timing (too advanced) or an intake value that is stuck/bent. I have it out about 5 turns. I decided to take it for a spin and see how it acted under load. Check your carburetor float for leakage / fuel inside it.
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