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Subject: Trouble shooting

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Mike Stanaway    Posted 12-10-2017 at 12:51:32 [URL] [DELETE]        [Reply] [Email]  
  • Trouble shooting
  • I recently purchased a 2n. I was told it would run for a few minutes and then quit running. Having other tractors this one was put in the corner and left.thats where it sat for 5 years until I purchased it. I need to use it this spring as a landscaping tool as I have a scoop bucket and scraper box. Anyway I cleaned out the old gas, replaced the radiator (rotted), did a complete tune up, replacing the 6v coil with a 12v (thinking that may be the trouble) and it will run great for a few minutes. It starts to sputter and wants the choke back on and then will not stay running. This is the third n series tractor I've owned and have been lucky with a few old timers that knew these tractors. Now I'm an old timer and they have gone. Any suggestions would be appreciated.

    Tim Daley(MI)    Posted 12-11-2017 at 11:51:19 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Trouble shooting
  • Chances are the coil is good, might want to put it back on -unless you have a 12-volt conversion -do you? The N fuel system has three screen in line, two in the Sediment Bulb Assembly and one in the brass elbow inlet on the carb. The sediment bulb has a fine mesh screen on the stem that goes up into the fuel tank when it is screwed in -in photo it is covered with a cardboard protector as purchased new. The 2nd one is the large fine mesh brass one that goes between the bulb halves. It has an offset square hole to slip over the fuel inlet port. The3rd screen is soldered on the brass elbow that screws in the carb. You need to remove the fuel line then unscrew the elbow to get it out before cleaning. First test, with engine COLD, container like a coffee can under carb, loosen drain plug, then open sediment bulb valve 2 Full Turns to view fuel flow as described below. Do a basic root cause problem solving method before switching out parts that may or may not be bad in the first place. Once you establish fuel flow is normal, the next step will be to check for spark.

    MARVEL-SCHEBLER FORD N-SERIES CARB -BRASS FUEL INLET ELBOW LOWER RIGHT:

    FORD N-SERIES FUEL SEDIMENT BULB ASSEMBLY, w/ VALVE STEM AND SCREENS:

    Tim Daley(MI)

    Mike Stanaway    Posted 12-13-2017 at 23:51:09 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • Thanks Tim
    As you know it's been cold the last few days here in north Michigan, so the tractor is on hold. It didn't run long enough to get it to shelter. I did get the ignition problem solved with good advice and cold hands. 10į is my cut off for non essential projects. Sunday and Monday are going to be in the 20's and I'll get it checked out and cleaned up. Pix are helpful too. Thanks again.

    Mike Stanaway    Posted 12-20-2017 at 21:02:00 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • My 44 2n is alive again. Thanks for the helpful advice everyone. Tim thank you for diagrams.almost 40 yesterday so I got a lot done including a drive around the block. I must say having the clutch and right brake on the same side will take some getting used to after 2 8n's

    Bruce (VA)    Posted 12-10-2017 at 19:02:07 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • You said you put a 12v coil in it. Is the tractor 6 volt or 12 volt? It should have the ballast resistor and no other resistors in the circuit. Does it have any other resistors?

    Front or side distributor?

    Donít guess at the cause of the problem; guessing can get expensive. And leave you breathless chasing every guess.......it could be this, it could be that......just troubleshoot the problem and leave the guess work for buying Lottery tickets.

    As soon as the tractor stops running, not 5 minutes later, check for spark and fuel.

    You need to answer 2 questions before you do anything else:

    With the bolt in the carb bowl removed and the gas on, will the fuel flow fill a pint jar in less than 2 minutes?

    Next, get out your adjustable gap spark checker * , open the gap to 1/4", hook it up, turn the key on and crank the engine. Does the spark jump 1/4"? Post back with the answers.

    And do not buy a new part for the tractor until you can answer this question: how do I know the part on the tractor is defective?

    * Don't own an adjustable gap spark checker? Buy one! Not a test light! Until then, take an old plug, open the gap 1/4" ground it to the head & look for spark. Itís not the color of the spark that counts; itís the distance it jumps.

    Bruce (VA)    Posted 12-10-2017 at 19:00:32 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • You said you put a 6v coil in it. Is the tractor 6 volt or 12 volt?

    Donít guess at the cause of the problem; guessing can get expensive. And leave you breathless chasing every guess.......it could be this, it could be that......just troubleshoot the problem and leave the guess work for buying Lottery tickets.

    As soon as the tractor stops running, not 5 minutes later, check for spark and fuel.

    You need to answer 2 questions before you do anything else:

    With the bolt in the carb bowl removed and the gas on, will the fuel flow fill a pint jar in less than 2 minutes?

    Next, get out your adjustable gap spark checker * , open the gap to 1/4", hook it up, turn the key on and crank the engine. Does the spark jump 1/4"? Post back with the answers.

    And do not buy a new part for the tractor until you can answer this question: how do I know the part on the tractor is defective?

    * Don't own an adjustable gap spark checker? Buy one! Not a test light! Until then, take an old plug, open the gap 1/4" ground it to the head & look for spark. Itís not the color of the spark that counts; itís the distance it jumps.

    grizz    Posted 12-10-2017 at 16:27:02 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Trouble shooting
  • like others have said take line off at carb and let run should be good flow also make sure you do not have a add on inline filter there were never designed for that

    Mike Stanaway    Posted 12-10-2017 at 16:37:33 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • Thanks for the good advice everyone. I will be cleaning strainer screens and checking flow. Thanks again and happy holidays

    Nate    Posted 12-10-2017 at 14:29:59 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • My good running 8N just had the same issue. Removed the screen above the sediment bulb. It was plugged. Replaced with a new one, and it runs fine!

    Rustyal    Posted 12-10-2017 at 13:52:10 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Trouble shooting
  • The gas tank could need cleaning out after sitting for 5 years.

    BlasterStumps    Posted 12-10-2017 at 13:39:36 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • Hi Mike,
    How much checking of fuel flow have you done so far? There are screens. I believe one is on the fuel shutoff up inside the tank, one inside the fuel shutoff sediment bowl (flat screen) and one on the elbow that goes into the carb. Not sure if the 2N has all this but there is a good chance that is what you have. Need to make sure they are all clean and that fuel will flow freely to carb. Should be able to check the flow by removing the plug on the bottom of carb and let it run into a container. I don't have a 2N so I am repeating advice for my 8N.
    Mike

    Farmer Dan    Posted 12-10-2017 at 18:57:36 [URL] [DELETE]        [Reply] [Email]  
  • Re: Trouble shooting
  • the 9N and 2N have three fuel filters in the same location. I had my fuel line get kinked once that will cause the same symptoms.

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