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Subject: 46 2N

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Douglas    Posted 01-28-2020 at 12:01:15 [URL] [DELETE]        [Reply] [Email]  
  • 46 2N
  • a friend of mine just picked up a 46 2N that is still a 6 volt system. onething he has noticed so far is it will be needing a head gasket. it is set up as a negative ground not positive ground. is this a mistake from the PO or can it remain a negative ground. with a little fresh gas it did run as it is now.

    Tim Daley(MI)    Posted 01-28-2020 at 14:04:20 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 46 2N
  • All FORD electrical systems were OEM 6V/POS GRN, not just tractors, up until 1950-something. System will work on 6V or 12V, POS or NEG GRN, however if not wired CORRECTLY will cause issues. The best tool you can invest in as a newbie (or an oldie) is the ESSENTIAL MANUALS. If you donít know what a generator, cutout, ballast resistor, front mount distributor, and ammeter are and do, read more before messing with anything. Go to our HOW-TOís and download WIRING PICTOGRAMS by JMOR and 75 Tips For N-Owners by Bruce(VA) as well. Start there. If it runs now, donít muck with it.

    FORD 9N/2N TRACTOR WIRING DIAGRAMS:



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


    Tim Daley(MI)

    Doug    Posted 01-28-2020 at 19:17:31 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 46 2N
  • My buddy started pulling his tractor apart he pulled the exhaust manifold off and is getting coolant from one of the bolt holes. Would that be a water jacket or is there a crack in the block someplace

    Tim Daley(MI)    Posted 01-29-2020 at 06:27:12 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 46 2N
  • It's probably from a stud hole thru the water jacket as Bruce said - but don't assume. Did a stud or two come out (normal) when he removed the manifold or is it leaking from one of the studs itself? If it was the latter, then I'd be concerned. When removing/replacing an exhaust manifold, it is a good idea to drain some coolant first. The bottom of the radiator has a petcock on the LH side for draining. When installing the new manifold, be sure to get all the old gasket material off the block first. New manifolds usually come with the three new gaskets but there's no need to put any Permatex on when reinstalling, I don't. Two gaskets go on the block between the manifold, one on each side not double stacked on one, and there is a gasket for the carb to manifold as well. Secure with new steel lockwashers and the p/n 33816 brass 7/16-20 Hex Nuts. The torque spec is 27 ft/lbs for the 7/16-20 brass hex nuts. Kits are sold at a reliable supplier like Just8Ns. I suggest you invest in all new parts as well - manifold; gasket kit; brass nuts; muffler clamp kit; and maybe a new muffler too. The job isnít difficult, just time consuming as you need to loosen the fan belt and move out of the way; remove the carb and air cleaner tube; remove muffler clamp; unhook governor linkage rod; and remove manifold. Use your OEM Part manual for a guide and seek our How-Toís forum for more info.

    FORD TRACTOR 39-50 ENGINE EXPLODED VIEW:

    Tim Daley(MI)

    Bruce (VA)    Posted 01-28-2020 at 21:38:04 [URL] [DELETE]        [Reply] [Email]  
  • Re: 46 2N
  • The exhaust studs go into the water jacket.

    See tip # 39.

    Bruce (VA)    Posted 01-28-2020 at 12:33:57 [URL] [DELETE]        [Reply] [Email]  
  • Re: 46 2N
  • as long as it is charging ( is it?) don't worry about the polarity. If you want to change it, see tip # 23.

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