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Subject: Ford 2 n with 12 volt system not charging

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Will    Posted 06-11-2018 at 22:39:27 [URL] [DELETE]        [Reply] [Email]  
  • Ford 2 n with 12 volt system not charging
  • Yesterday I bought a 1945 ford 2 n that was converted to 12 volt system 20 years ago.
    When I bought it yesterday it started up fine but when we trailered it home it started on the trailer then it wouldn't start the next time we tried to start it. So we jumped started it with car battery.
    Today had to jump start it again and put voltage meter on it and tested battery when not running reads about 12.3 volts then after jumping it to start the voltage meter reads about 12.0 volts. So I don't think system is charging.
    How shall I isolate this non charging issue?
    1. Charge battery
    2. Try different battery
    3. Buy longer battery ground cable and ground battery to an engine bolt? Currently the battery ground cable goes to a bolt on inner hood going into steering box
    4. Some how test alternator and voltage regulator.
    I am not an electrical genius so any advice is appreciated.

    Tim Daley(MI)    Posted 06-12-2018 at 05:50:16 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 2 n with 12 volt system not charging
  • How familiar are you with Ford N-Series Tractors? As a newbie you best get the essential manuals and read religiously. We have enough in our MANUALS forum to get going with: I&T F-04; 39-53 MPC, and 9N/2N Service Manual. First, are you sure you have a 2N? Does the serial number confirm? Does it have a 3-speed transmission and no POSITION CONTROL? Next, don't go buying any new parts until you've resolved the root cause/causes of the problem. My gut instinct tells me your 12-volt switch-over job is a cobbled up nightmare. 99.98% of all non-starting 12-volt jobs are due to incorrect/poor wiring jobs. SEE LINK to our HOW-TO's forum for a copy of "WIRING PICTOGRAMS by JMOR" as he has documented all the CORRECT ways to wire these old N's regardless of whether original 6V/POS GRN or a 12V/NEG GRN job. How does a longer ground strap help? Having the correct gauge battery cables is part of the equation, but for now you are going to do some other tests and investigating starting with battery and wiring. First of all NO 2N tractors ever used a voltage regulator. Only the first early 9N models did with the small 9N-10000-A generator. The early 1940 generator was changed and then used the round can cutout up until 8N production. No matter, with a correct 12V job w/alternator, there is no voltage regulator or cutout circuit used. When the 8N was released, it then had a new generator and used a voltage regulator. Get your battery tested at a reliable shop. If it tests bad, buy a new decent brand model like INTERSTATE, DEKA, or EXIDE. 6V = GRP-1; 12V = GRP-25 or GRP-35. You or a qualified person are going to go thru the entire wiring system while your battery gets tested. Perform continuity test with a meter or test light and never assume wiring color codes are correct. Disconnect battery when working on electrical system –you don’t need nor want power to test continuity. I suggest if you have lights to disconnect them as well –you can reconnect when all else is corrected. Get a copy of Bruce(VA)’s “75 Tips for N-Owners” as well as the essential manuals and wiring documents to begin your quest.

    FORD N-SERIES TRACTOR 9N/2N ESSENTIAL OWNER MANUALS:

    Tim Daley(MI)

    JMOR    Posted 06-11-2018 at 23:11:03 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 2 n with 12 volt system not charging
  • Charging....take alternator to auto parts store for a free test.
    Slow to rev......verify correct timing, as insufficient advance will make sluggish ...and if bad enough make it overheat.

    Will    Posted 06-11-2018 at 22:57:30 [URL] [DELETE]        [Reply] [Email]  
  • Re: Ford 2 n with 12 volt system not charging
  • Part 2
    The 1945 2n seems doggy like starving for fuel or air it doesn't rev up nice like my brothers 8n
    The 2n has good oil pressure and no smoking.
    It has a new carb from eBay and the old owner didn't think he had it adjusted right.
    Any advice on adjusting a eBay carb for the 2n ?
    Do you adjust it the same as the old marvel shebler carbs?

    Tim Daley(MI)    Posted 06-12-2018 at 06:03:31 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 2 n with 12 volt system not charging
  • My advice on buying a new carb off ebay is don't. Most all new parts are Cheena made junk. The original Marvel-Schebler carbs were designed to be rebuilt over and over. Never assume a 'new' part is set correctly either out of the box. You just don't take it out and slap it on without first checking settings. You will tackle one problem at a time. Three things are need to run: Fuel, Spark, and Compression. You will concentrate on the first two for now. In my previous message I said to get the electrical system verified. Before you start and while your battery and/or alternator are being tested at a shop, you can do a fuel test to see if the carb is getting fuel. SEE BRUCES TIPS. Simply remove carb drain plug on bottom of unit and open fuel valve 2-turns. Does fuel drip out at a steady pace? If so, leave carb alone for now. If no fuel flow, you have blockage, probably in the 3 screens in the system. You can fix that easily enough but DO NOT make any carb adjustments now. AS I said, I suspect your root cause issue is bad wiring. Once this is corrected, you can concentrate on the others like fuel and spark.

    Tim Daley(MI)

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