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Subject: 8N serial number, 3-speed tranny. Help!

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Matt G, tractor newbie    Posted 11-30-2020 at 17:47:12 [URL] [DELETE]        [Reply] [Email]  
  • 8N serial number, 3-speed tranny. Help!
  • I was just given a Ford tractor. It is almost running. Serial number 8N147877 tells me that it is an 8N from mid 1949, but the transmission is three forward, one reverse.

    Distributor is on the front of the motor. There is no tachometer/speedo/hours meter, so it is not one of the youngest 8Ns anyway. The number plates are badly weathered, so I havenít been able to read them; when the weather is nicer Iíll take a soft toothbrush to them in hopes of learning more.

    The tractor has a Super Six loader that started its life as a manure loader.

    The air cleaner does not have any opening at all in the tin.

    So, what do I have? An 8N that somebody Frankensteined on to a 9N transmission?

    Tim Daley(MI)    Posted 12-01-2020 at 06:34:14 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • Welcome newbie, so, you have a mutt - an early 8N engine in a 9N body. Not rare, many like it. Forget serial numbers - they only ID the engine block anyway. You do need to invest in the most important tools you can get for your new N -the ESSENTIAL MANUALS. Read before operating. Know the diff between the 9n/2N and 8N's. Air vent on 9N/2N hoods did not exist -air cleaners were also different than 8Ns. You have much to learn before operating or buying any new parts. The OEM FORD Electrical System is a 6V/POS GRN design. Many were switched over to 12V. Which do you have? Don't assume because your battery is 6V or 12V doesn't mean the system is wired correctly for that setup. Go to our HOW-TO's and MANUALS forums as well.

    FORD 9N/2N ESSENTIAL OWNER/OPERATOR/PARTS/SERVICE MANUALS:



    FORD 8N TRACTOR ESSENTIAL OWNER/OPERATOR/PARTS/SERVICE MANUALS:


    Tim Daley(MI)


    Matt G    Posted 12-01-2020 at 06:46:06 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • It had a 6 volt system. With a new battery, it turned, but slowly. Iím planning to upgrade to a 12 volt system and electronic ignition, as I live in New Hampshire and plan to move snow with this tractor.

    Jack-Iowa    Posted 12-01-2020 at 08:22:36 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • Matt, I have to agree with Tim on the conversion.

    I lived in South Dakota for several years. Nasty winter weather! MY 8N sat outside and never failed to start when I needed/wanted it.

    I also worked in Industrial Electronics most of my adult life. I see no reason to convert to 12 volt unless you are running an accessory such as a pump which needs the higher voltage. The Kettering ignition system has served well well since 1910 and carried our troops through two world wars.

    I also have to admit I'm not good on preventative maintenance! If it ain't broke, don't fix it!

    Good luck with your tractor.

    Jack - Iowa

    Tim Daley(MI)    Posted 12-01-2020 at 07:45:22 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • FORD Myth #3: A 12V System is an 'upgrade'. FALSE. Turning slow wouldn't be caused by a 6V battery. 12V would help with faster starting with a worn engine but other than that not due to 6V if compression is good. A 'new' battery doesn't mean it is a good battery. Was it tested under load at a shop for specific gravity? EI only eliminates the use of points and one wrong move and they're toast -never had a need or want for them myself. Iceland or New Hampshire -doesn't matter. I live in Michigan - cold 9 months a year. I never had a need or desire for 12V Ford tractor. Fords have run on 6V/POS GRN for 118 years. Fellas just fail to understand the 6V system and subscribe to all teh myths and fallacies they hear.

    Tim Daley(MI)

    TheOldHokie    Posted 12-01-2020 at 11:50:52 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • FORD Myth #3: A 12V System is an 'upgrade'. FALSE.Fellas just fail to understand the 6V system and subscribe to all teh myths and fallacies they hear.

    The last iteration of the OEM 6V charging system (8N-10000B/10001) in perfect shape produces 6V x 20A = 120W of poorly regulated power. That is barely enough to run two dim 30W headlights, a 30W worklight, a tail light, and the ignition system. The versions used prior to that produced a paltry 75W of output and were not capable of sustained operation with lights.

    A 12V 10SI conversion produces 12V x 63A = 756W of perfectly regulated power. That is enough to run 3 or more 60W lights, tail lights, flashers, ignition, a 12V sprayer, and a modern radio while keeping the battery in top charge. It will crank faster and longer than the OEM system and does not require constant tinkering to keep the connections sparkling bright and the system operational.

    Your opinion not withstanding, the vast majority of people consider those improvements a MAJOR upgrade.

    TOH

    Matt G    Posted 12-02-2020 at 17:53:34 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • In part for the lights- my eye needs all the light it can get- I do plan to upgrade to 12v. I understand that 6v worked well for more than a century, but I really do want brighter lights.

    When installing a 12v kit, does one switch from positive ground to negative ground?

    Thank you.

    TheOldHokie    Posted 12-02-2020 at 23:13:57 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • When installing a 12v kit, does one switch from positive ground to negative ground?

    Typically yes. Alternators are almost always negative ground. 12V generators don't care but can't compete with alternators for power output.

    TOH

    Ultradog MN    Posted 12-02-2020 at 08:11:17 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • Well said.
    Thank you!

    John in Mich    Posted 11-30-2020 at 19:11:37 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • Probably. It was an often occurence. A farmer depending on the tractor needed it running. A Ford engine was a Ford engine.
    Many years go by, used tractor dealers have several "parts" tractors. Make one out of three. Frankentractor.
    I knew a man who would buy Ford tractors from Michigan to Kentucky and Pennsylvania to Iowa. Refurbish, mix and match, maybe paint and sell in the spring. 25 to 30 tractors a year. I bought 2 from him.

    Matt G, tractor newbie    Posted 11-30-2020 at 19:24:45 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • OK, thank you.

    Loren CA    Posted 11-30-2020 at 19:11:04 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • You probably have a 9N or 2N that has a later engine. The same basic engine was used until the NAA came out for 1953.

    Matt G, tractor newbie    Posted 11-30-2020 at 19:23:07 [URL] [DELETE]        [Reply] [Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • Thank you. I wasn't sure whether to believe the serial number or the transmission!

    Is there a serial number anywhere apart from the engine block?

    HCooke    Posted 12-01-2020 at 17:50:35 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 8N serial number, 3-speed tranny. Help!
  • "Is there a serial number anywhere apart from the engine block?"

    No there is no other serial number. Not necessary. When ordering engine parts you simple need to order parts for a front mount distributor engine. Any parts from aft of the engine need to be for a 9 or 2N.

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