In Reply to: 1939 Ford 9N Tractor posted by Jim Mortensen on May 16, 2017 at 16:05:38:
We'd like to see your '39 -what is the serial number? There are a few members here in your neck of the woods, best to consult an N owner than take it to some shop that has no clue what these old machines are like. They'll end up butchering it up and destroying or replacing rare valuable early 9N parts if yours has any. Hang on to any original parts you have replaced as they are better to rebuild than buying anything new. Now, as Bruce asked, is it the original 6 volt/positive ground system or a 12-volt convulsion project? If 6-volt, you would have a (small)generator and a voltage regulator,if early 9N, or a little later, a round can cutout circuit. A 12 volt system uses an alternator in place of the generator. Running and stopping within a minute or so to me sounds like a fuel issue, but anything is possible at this point. DO NOT start replacing parts until a systematic, root cause method of problem solving is performed. You can download the 75 Tips For N-Owners Bruce compiled, use it for reference. Start here with PM projects in our HOW-TO's forum, under ELECTRICAL and download JMORS Wiring Pictograms to see how your N should be wired CORRECTLY. Baby steps, and if you are mechanically inclined you can do this stuff yourself and save your hard earned $$$...