In Reply to: 6volt posted by Dud on June 24, 2018 at 17:03:05:
Sounds like you are new to the wonderful world of Ford Tractors. First, all Ford vehicles were 6-VOLT/POSITIVE GROUND up until the late '50's, not just tractors. Diesels first introduced 12-volt/negative ground systems. Over the years, many 6-V vehicles have been switched over to 12-V including N Tractors. Serial numbers don't necessarily mean much, meaning don't count on them being correct nor that the entire tractor is correct. Engines were often swapped out when one blew. What is important to know about your tractor is 1) does it have a front mount distributor or a side mount, 2) is it 6V/POS GRN or a 12V switchover job, and 3) does it have a 3-speed transmission or a 4-speed. Be aware that just because you have a 12V battery on your tractor does NOT mean it has been changed over correctly to a 12V system. Likewise, if you have a 6V battery on your tractor, do not assume it is correctly wired as a 6V/POS GRN system. Add to the fact that many 12-volt jobs are wired incorrectly from the get go. Most poor/incorrect/bad wiring jobs are done by people who don't have a clue on how to correctly wire them whether 6V or 12V. Fortunately, a frequent member here JMOR put together an excellent document on how to wire these old N's correctly. Note the RED MENU bar at the top of our homepage, See the forum "HOW-TO's"? there is a ton of D-I-Y projects and technical documents there for free download to use as guides. Under the ELECTRICAL subcategory is "WIRING PICTOGRAMS BY JMOR". It contains every possible CORRECT way to wire these old N's, 6V or 12V. Find your set up, and start with that. Do not assume anything. If you don't how tell a generator from an alternator, you better learn fast and/or get someone who does know to help. Just tossing a new battery on without knowing what you are dealing with including whether the rest of the wiring is correct, is foolish. It is also advisable to get Bruce's 75 tips as a guide too and invest in the essential Operator/Owner manuals as well. There is a quick LINK to the HOW-TO's forum at the bottom here...