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  1. #1
    New Member
    Join Date
    Feb 2011
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    9
    Location
    Western West Virginia

    Default Starting in on a 8n.

    Hi guys im getting ready to start in on getting my grandpas old 8n running. I bought it off my grandma about 2-3 years ago. I learned how to drive on this tractor setting on my grandpas lap. He passed away in 1998 and the tractor was parked about 2001. Ive got a few questions. I want to make sure the motor isnt seized up before I start into it. Im thinking about pulling the plugs and lubing the cylinders before i rock it or roll it over. What should I use to lube up the cylinders? If it is free then ill change all the fluids and start checking out the elec. and fuel system. I realloy hope to get the old guy up and running, It served my grandpa well for 40 years so I figure it will do me just fine to. Im sure ill be on here asking more questions before I get it back into the feild.

  2. #2
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,763
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Starting in on a 8n.

    here's what I would do.

    1, go buy a tune up kit.. spark plugs, points, rotor, cap, condensor, spark plug wires ( more on this later.

    2, go buy some cheap walmart atf fluid.. fill each cyl full then loosly thread the old spark plugs back in to keep debri out. let set a day.


    3, drain old gas tank if it isn't bone dry already. can do this during the day of setting for the atf. remove plug on the bottom of the carb and add a couple gallons new gas to the tank.. open the gas valve under the tank.. sediment bowl should fill, then gas start peeing out of the bottom of the carb.. put the plug back in and slipt he air hose off.. wat 10-15 minutes and make sure gas does not start leaking out of the carb. if it does.. float may be stuck, needle/seat dirty.. etc.

    get a new battery. this machine was originally 6v positive ground and had a generator.. if it still is setup this way go get a new battery.. tractor supply has them.. so does interstate. (1VHD battery number )..

    grease up the posts and install, and clean the gornd cable to the chassie connection.. i'd remove and sand and replace.

    might already be converted to a 12v battery and negative ground an an alternator. if so.. hook back up that way and get a new battery.

    drain engine oil.. make sure there is no water in the old oil.. also check to see that there is fluid in the radiator.

    get an oil filter for it.. fram C3 or C3P, or a napa 1010gold

    day 2, remove the plugs, roll the engine over by hand half revoloution.. refill with atf rethread the plugs.


    new plugs.. champion h10 are oem but most prefer hotter like H12.. autolite 437 are that same heat range.. al 216 ar ethe colder ones. ALC7 is what a dealer will sell you. they make sparks too.

    get real metal core plug wires.. even if you have to cut them to fit yourself. tsc sells kits.

    fire order is 1-2-4-3 .. #1 is at the radiator

    now.. from here.. need to kow if it is a front mount dizzy with 4 wires and a square coil on top .. or a side mount dizzy with 5 wires and a round can coil.

    front mount.. take 2 bolts out and remove the dizzt to install and set points. point gap is .015 .. when reinstalling.. spint he rotor with your finger till it slips into the offset groove on the cam then add the 2 bolts... set coil on and flip the bail up and re hook the wire to the coil.

    side mount.. set points at .025.. leave it on the tractor

    spark plugs gap at .025 on all models.

    after 2nd day, remove old plugs and lay some newspaper out and spin engine over by hand.. if it is smooth, then refill engine with oil.. should take about 5 or so quarts, and put a half quart into the air breather cup after cleaning it out... i'd use a 15w40 oil in a mild to cold climate..and see what that gets you for oil pressure.. you can always change it later if it is a tad low... now then spin over a couple cranks with starter.
    this will expell al the old atf out.

    put in new gapped plugs and hookup plug wires

    turn on key and make sure there is power to the coil and gas is turned on, foot on clutch, throttle to mid, start turning her over and then give some tugs on the choke..

    here is an exhaustive list of cross over oil filters.. below that is front mount, then side mount ignition parts.

    Here is a list of Oil Filters for 8N and other Ford tractors.

    Ford Part Number: CPN 6371B 9N-18649, 9N-6714, 9N-2731
    Fram C3, C3-P
    NAPA Gold 1010
    Motorcraft FL 144
    Balidwin P40
    Big A 92010
    Bosch 72127
    Carquest 85010
    Fleetguard LF574
    Wix 51010
    Purolater L20110 or L20701
    Fleetrite LFR-8574
    Texaco HSO-100
    Unocal OF 1010
    White 10575
    Hastings Mighty M3LF-130
    Luber-Finer P3

    Ignition Parts:

    Front Mount distributor...
    Points:
    NAPA #CS35
    Standard Ignition Blue Streak #FD-6769X (Premium)
    Condensor:
    NAPA #FA200
    Standard Ignition #FD-71
    Rotor:
    NAPA #FA300
    Standard Ignition #FD-104
    Distributor Cap:
    NAPA #FA350
    Standard Ignition #FD-126

    Side-Mount Distributor: 8n thru 4 cyl thousand series
    Points:
    NAPA #CS749
    NAPA HEAVY DUTY PIERCED (ventilated) #CS753
    Standard Ignition #FD-8081
    Standard Ignition Blue Streak #FD-8081X (Premium)
    Condensor:
    NAPA #FA66
    Standard Ignition #FD-75
    Standard Ignition Blue Streak #FD75X (Premium)
    Rotor:
    NAPA #FA67
    Standard Ignition #FD-108
    Distributor Cap:
    NAPA #FA352
    Standard Ignition #FD-128

    side mount points hold down screws #8-32 X 3/16
    FORD AUTOMOBILE dealer parts counter. come with built-in lockwasher. p/n 355047-S7 (#8-32 X 0.19)

  3. #3
    New Member
    Join Date
    Feb 2011
    Posts
    9
    Location
    Western West Virginia

    Default Re: Starting in on a 8n.

    Wow thanks for the info. It is a front mounted dist.I believe it is a 49 based on what he always said, cant read the plate for the number though to verify. He had already converted it over to 12v. Ill do what ya told me and get back to ya if i have anymore questions. I picked up a I&T manual for it awhile back so ill be referencing it as well.

  4. #4
    Elite Member jonyyuma's Avatar
    Join Date
    Sep 2010
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    2,972
    Location
    35 miles North of Memphis,TN
    Tractor
    kubota L3000dt, ford 8n1952

    Default Re: Starting in on a 8n.

    Nice detailed info on the subject of restoring operation..1949 model.
    Okay, Legal disclaimer: Old but not senile, definitely do not have the answer to everything!

  5. #5
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,763
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: Starting in on a 8n.

    sn really don't matter unless you are a collector.

    if it's a front mount.. that's all ya need to know to get ignition components, plus that tells ya whatside the gen / alt mounts.. plus that tells ys what cam and cover ya need/ particulars of the block and timing.

    next place ya might need to know something is steering box.. again.. visual observation of sector covers will tell you old or new style.. IE.. round covers = old, ocal covers = new

    last place you need to know age is axle trumpets when doing seals. late style 52's will have an inner and outter, and again.. upon pulling the axles you will know, if needed.

    so sn is irrelevant. In any case.. you can piece out 10 9n, 2n, and 8n tractors and put together a bunch of frankenstein mutts as all the engines interchange, and all the rear ends and trannies bolt up.. etc. gets funny on brakes and such.. but even hyd cover and pump as a pair will swap. few things won't direct swap.. like no 8n steering box on a 9n/2n due to the way it's made.. but otherwise.. lots stuff bolts up between 39 and 52.

    soundguy

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