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  1. #1
    Member
    Join Date
    Aug 2008
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    37
    Location
    SE Missouri
    Tractor
    JD4300, 4wd, SRT, X740, 318

    Default Ford 8N Ignition Timing?

    Trying to get son-in-laws 8N front distributer, 6volt pos ground to start. He replaced plugs, points, cap and rotor, but I think he turned the distributer! What is the best way to get distributer back in or do I just crank it and turn it till it starts to fire? Any help on a hard starting 8N would be great. I have no manual for reference. He's so far procrastenated on getting one. I've had it running before and told him to start it once a week or so, but that doesn't' happen and kids will be kids I guess and will hopefully learn one of these days, that you can just let them sit for months then expect them to start when you need 'em.

  2. #2
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
    Posts
    48,767
    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: Ford 8N Ignition Timing?

    the 9n, 2n, and 8n with front mounted distribuitor ( 4 nipples ) is offset tang driven from the cam.. it only goes in 1-way.. wheen you seat it on the cam drive, spin the rotor till the slot drops in, then take the 2 bolts down.. if it's not in time when the bolts go down.. ya broke it.

    points gap at .015 plugs gap at .025 I like autolite 437's.. though 216's work.. and are the same as the champion h10.. with the h12 ( 512) being similar to the 437.

    fire order is 1-2-4-3.. 1 is at the rad.. most caps are marked.. and it';s easy to mix up 3/4

    there is a timing adjustment.. and it gives very little adjustment.. if it ran when you pulled it.. it shoudl run now if you didn't monkey with the adjustment.. to really set it.. oy need a straight edge and the page out of the manual that shows you how.. you will be measuring to set the timing... etc. easy to see on paper.. not so easy to describe via board post.

    some common problems are points that close up.. and new coils that have the pigtail primary contact bent or squished so that it doesn't set in the specail concave head screw.. other problems are a lack of power to the coil due to a bad oem key switch..

    hookup a testlamp between the coil and the wire feeding it.. turn key on and crank engine.. lamp should blink ( dimly ).. if it just stays on.. you have a short.. if it never comes on.. then an open in the circuit.

    post back for more help.

    soundguy

  3. #3
    Member
    Join Date
    Aug 2008
    Posts
    37
    Location
    SE Missouri
    Tractor
    JD4300, 4wd, SRT, X740, 318

    Default Re: Ford 8N Ignition Timing?

    Thanks
    Will give these items a try at next opportunity! Will share any findings. He needs to spring for a manual.

  4. #4
    Super Member timswi's Avatar
    Join Date
    Nov 2008
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    5,007
    Location
    Beaver County Pa
    Tractor
    Kubota BX23 & RTV1100

    Default Re: Ford 8N Ignition Timing?

    Quote Originally Posted by manwith2jd View Post
    Thanks
    Will give these items a try at next opportunity! Will share any findings. He needs to spring for a manual.
    Maybe this will help...Used it when I had my 8N

    Ford 8N Service Manual
    BX23TLB & RTV1100 with 72" Power Angle Plow

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