N Board Forum - Expanded Thread Page

Subject: 1954 Ford 600 Tractor.

[Back] [Return to Top of Forum]

Mark Fitzwater    Posted 02-05-2017 at 09:25:53 [URL] [DELETE]        [Reply] [Email]  
  • 1954 Ford 600 Tractor.
  • Hi,
    I bought this tractor a few years ago. 1954 600. It ran great until a few months ago. It has a front end loader on it. As I drove into a pile of gravel to load the bucket it just died. I had to full choke it to get started even though it was at full operation temp. When it started I would die as soon as I took the choke off. I got her back into my pole bldg and that was the last time it started. After a lot of time playing around I found it will not draw gas to the plugs even if I remove the air inlet hose and choke it with my hand. At that point I had a friend rebuild the carb. It still has the same basic issue, runs great if I pull the plugs and ad gas to the cyclinders on a cold start. If I do not do that it will not start. Once running it runs great and can be shut off and re started at any point. If it sits over night it won't start unless I add gas the the cyclinders.

    Any ideas?

    Thanks Mark.

    Den N Ms    Posted 02-05-2017 at 15:54:17 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 1954 Ford 600 Tractor.
  • Mark,As others have mentioned,check for vacuum leaks at carb mount,manifold to head,or even the intake manifold itself.Remove intake tube from the air cleaner at he carb and give it a shot of starting fluid in the carb for a start up then spray around carb connection to manifold and manifold to the head.Listen for change in the engine and for leaks.

    Bruce (VA)    Posted 02-05-2017 at 10:21:32 [URL] [DELETE]        [Reply] [Email]  
  • Re: 1954 Ford 600 Tractor.
  • Adding gas directly into the cylinders is never a good idea. In addition to fouling the plugs, it washes the cylinder walls. That reduces compression and will eventually scour the walls.

    Use starting fluid directly into the carb throat.

    If you have a vacuum leak, it's unlikely to disappear once the tractor starts. But, don't rule that out just yet.

    You need to figure out if it's a spark or fuel problem.

    Pulling out the choke gives you a richer mixture. So, you could have either a fuel or spark problem.

    A carb out of adjustment will also cause this problem; set the main jet at 1-1/2 turns out & leave it alone.

    A dirty carb can cause the problem as well; start by cleaning the fuel screens. (see tips 45 & 56)

    Dirty/old gas, or water in the gas can cause this problem.

    Restricted fuel flow can cause this problem; remove the bolt at the bottom of the carb & check for flow. The flow should fill a pint jar in under 2 minutes.

    On my 1950 frontmount, needing choke to run is the first sign that the points need adjusting/replacing.

    A vacuum leak can do the same thing. Get a hand propane torch and carefully spray it (unlit of course) around the intake manifold at the carb to manifold interface & the manifold to block gasket of the tractor while it is running. Or, you can use carb cleaner or WD40. If it speeds up, you found the leak. Sometimes (rarely) manifolds crack or get rust holes.

    Lastly, when all else fails, you could have an air leak around the carb metering section. The likely suspects are leaky throttle shaft seals and/or a worn throttle shaft. Or, just a real dirty carb w/ clogged passages.

    Bottom line: Probably 90% of "needs choke to run" problems are fuel related, but do not rule out ignition problems, contrary to what others may tell you. Iíve had that very same problem before w/ a rebuilt carb, fresh fuel & good flow & a tight manifold.......and it was a spark problem. But, that was unusual. Just check the likely fuel problems first.

    Please be sure to post back & let us know what the fix was. We all learn something if you tell us what worked!

    steveVa    Posted 02-05-2017 at 09:35:31 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 1954 Ford 600 Tractor.
  • Sounds like an intake manifold leak to me. You might try a carb off of a good running tractor if you have a friend with one. Carb could still have a plugged up passage. First I would look for a manifold leak.

    [Back] [Return to Top of Forum]