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Subject: NAA Cranks, dies out

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Lucy    Posted 09-12-2022 at 13:35:52 [URL] [DELETE]        [Reply] [Email]  
  • NAA Cranks, dies out
  • 1953 Ford NAA
    Recently purchased (actually traded a vehicle for this tractor). Not a pro - I'm just a young adult trying to manage my home. I've got 10 acres of land to mow and that's all I'm using this tractor for at this moment. I had to replace the fuel bulb assembly due to leaking, and the tractor worked for at least a couple hours since then.

    I know the basic idea is an engine needs three things to run: fuel, air, and spark. I know we're getting fuel - I've turned the bulb assembly to all the way on, to the point I can see fresh fuel being injected into the bulb. It is now full. There is gasoline in the tank. Likely around 1/4th full.

    I can turn the key and you hear the engine turning over, plus see exhaust (non colored, just can see it blowing the grass below), and see the fan turning over. However, it doesn't continue after turning the key. To me, that indicates the battery and key / cranking is fine.

    I have turned the PTO off before cranking, I have checked the oil and hydraulic fluids, the temperature of the engine is fine and we have let it set over night to make sure. I have attempted cranking with and without pulling the choke.

    I never grew up on a farm and have very little know-how in these subjects. I am not understanding many of the things I hear people say. I don't know what to do with spark plugs to test them, but I Know that's one of the "three" things I need to verify. I also don't know what to check regarding air.

    Any advice is welcome, please go gently on me, I'm trying my best to learn but I don't have the background nor a mentor to help me. I'm relying on manuals and the internet.

    Jack - Iowa    Posted 09-15-2022 at 07:24:20 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA Cranks, dies out
  • As Ed has pointed out, getting gasoline in the sediment bulb does not equate to getting fuel into the cylinders. Dirt in the filter screen could be the problem. Or a vacuum leak could be the culprit. Do the test he pointed out. That would eliminate the filter(s) as the problem.

    As I think about your problem I keep wondering if you have flooded the engine. Pull a spark plug and see if it is wet. A flooded engine will not start! If the plugs are wet you can try drying them with a torch. If they are severely flooded, it may be easier to just buy a new set.

    Normally these engines require very little choke. My procedure is to pull the choke, hit the starter button and as it starts to turn push the choke in. You may have to give it more choke to keep it running but do so in spurts.

    The fact the battery will turn the engine over does not mean is is good enough! It has to provide the power to develop the spark while turning the engine. A dirty connection in one of the battery cables could also cause that problem. Don't ignore where the battery cable is connected to the engine block. I have also had a battery cable which was corroded under the insulation and looked fine from the outside.

    Lastly, do not start throwing parts at the tractor until you have performed troubleshooting and are reasonable sure you know the problem.

    Good Luck,


    Ed Gooding (VA)    Posted 09-13-2022 at 14:59:55 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • >> I know we're getting fuel - I've turned the bulb assembly to all the way on, to the point I can see fresh fuel being injected into the bulb. It is now full. There is gasoline in the tank. Likely around 1/4th full. <<

    Have you confirmed that the fuel is getting from the sediment bowl assembly to the carb? If not, get a pint jar like a Mason jar. Open the sediment bowl valve. Remove the bolt at the bottom of the carb's fuel bowl. You should be able to fill the jar in about 2 minutes. If you cannot, then you have a blockage of some type. Remove the fuel line from the carb and unscrew the fuel inlet fitting. There should be a mesh screen filter there. If it's clogged, gently clean it and see if she will run. If not, then a carb cleaning/overhaul may be your next step.

    Let us know what you find and we will try to help you get her running.

    Lucy    Posted 09-15-2022 at 08:48:56 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Alright, here's the latest updates for y'all.
    ^ This is what it is doing
    ^ This is a video taken before I fixed the leaky sediment bowl & while it was working still. I fixed the bowl and it has ran several hours since then

    I'm not quite certain what the carb is, I'm still trying to google and figure out what it is and where I need to unscrew it to check if it's getting fuel. I know I need to clean the thing with the oil cup on it. It's nasty. A neighbor came over and said it wasn't firing. Not sure if that helps y'all but the video should.
    The battery on the tractor is 12V. Someone asked me if it was 6V or 12V so that's my answer.

    I'll continue to work a little a day at a time.. I appreciate all your advice :) Thanks for being kind to one of the younger gen trying to keep this old beauty alive.

    Ed Gooding (VA)    Posted 09-15-2022 at 09:41:57 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Given that you don't know where the carb is (other side of the engine from the battery), you might want to back up and read some of the owner's manual. You can download a free copy of it from our Manuals/Tractors library or click the link below.

    Ed Gooding (VA)    Posted 09-15-2022 at 11:36:53 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Your carb is here. To locate the fuel inlet, follow the metal fuel line from your sediment bulb to the inlet:

    Lucy    Posted 09-15-2022 at 11:18:23 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • I've skimmed all of, and read most of the NAA manual (https://www.ntractorclub.com/manuals/tractors/Ford%20Tractor%20Owner's%20Manual,%20Model%20NAA.pdf)
    I am going to read the manual you just sent as well.
    Re-skimming the NAA manual, I guess I missed the picture on pg62 that shows me the carb... it was what I thought it was when I was working on it but I wasn't 100% certain at the time and was too afraid to "mess around and find out".
    I mostly had been referencing the picture on pg63 about the air cleaner.

    I'm just not confident in my abilities, so I get nervous about what the different things are unless I'm 100% certain. I'll be taking apart the carb air cleaner & checking the fuel line to the carb as well tonight.

    Jack - Iowa    Posted 09-15-2022 at 19:03:16 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA Cranks, dies out
  • Without giving your address, what part of the country are you in? Someone may be close to you who would work with you.


    Lucy    Posted 09-16-2022 at 11:11:31 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Louisiana... but I've got it back going...

    Y'all, I am embarrassed. I feel like a fool.
    Perhaps though, there may be something wrong, and you guys can help me with it... First, let me describe what happened last night.

    I took the whole air cleaning system off and cleaned the heck out of it. Refilled that oil cup, put it back up. Unscrewed the bolt below the carb, one drop of fuel came out. Well there's the issue, right??
    Unscrew the line to the carb where the fuel screen should be?? Not a drop of fuel coming out. Okay, further back. Go back to the sediment bowl. Unscrew the fuel line from there, not a single drop comes out...
    Did the sediment bowl set up get clogged? Unscrewed it from the tractor, had a funnel ready to catch the fuel from the tank and pour it into the gas can so I could put it back after I fixed the issue....

    ..... nothing came out...

    Okay, I know I checked that there was fuel before I started all this... Checked again, and yes there's about 1" of fuel in there. Less than I thought originally, but there's still fuel in there.

    Maybe there's a clog? Stuck a stick up the hole under the tank and it goes thru easily. Not clogged.. My fiance suggests the obvious - just add more gas... so we do.. and it works.

    So the issue was definitely not getting fuel... but there was an inch of fuel in the tank, so can someone help me figure out how this tank is set up? I know there's 1 gallon reserve somehow, and I am not understanding how it is designed. There's also some garbage in the tank that I'd like to get out, if there's a way to open it up.

    Ed Gooding (VA)    Posted 09-16-2022 at 13:52:08 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Before starting your tractor, open the valve two turns on the sediment bowl. This will allow all but about 1 gallon to flow. To access the reserve amount, open the valve all the way. Were you doing it like this?

    Lucy    Posted 09-17-2022 at 08:23:18 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Originally, yes, but while I was working on it, no.

    Follow up question. How much fuel should the tractor be using? I see troubleshooting advice for if the tractor is using more than average fuel intake what to look at... well, I don't know what average is.
    It goes thru about 5 gallons of gas in about 1.5-2 hrs run time, first gear, brush hogging. Is that "average"? Is that low? I don't know.

    I appreciate all y'all's help. Thank you all.

    Ed Gooding (VA)    Posted 09-17-2022 at 14:08:47 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA Cranks, dies out
  • Without knowing what you are cutting (pasture grass or saplings or...) and not knowing what size bush hog you are using, it's pretty hard to offer an opinion on your fuel usage. It seems excessive to me, but it's hard to say without more info.

    Ed Gooding (VA)    Posted 09-15-2022 at 11:38:12 [URL] [DELETE]        [Reply] [Email]  
  • Never mind on the 8N manual
  • Sorry, had a geezer moment and thought you had an 8N. Apologies for the confusion.

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