Posted by IA Roy on October 15, 2017 at 19:48:03 from (72.168.161.67):
Dad put an 8 volt battery in his 1950 Farmall H some years back. He is almost 90. It does not hold a charge. I told him he probably needs to tweak the voltage regulator higher. I am pretty sure that it has a regulator instead of a cutout as I remember nothing about having to play with the light switch to control charge back when it was used every day, 40 to 50 years ago. Maybe the generator doesn't even charge. I need to talk my brother through it when I know what to actually do. Please let me know what steps to take. He is talking about changing to a 12 volt alternator, but I think that would be a wasted effort. It is used very little now, and only in the summer. The lights have not worked for years, so that is not a concern. I was there today and it would not start. I was going to look at the electrical gauge (probably an ammeter) to see if it was charging. He said that when they need to use it, they pull it to start. That makes me think that the generator is putting out enough power to fire the ignition system. What would the correct charging voltage be. I am thinking around 9.7 to 9.8 volts. Should that be at idle, half throttle or full throttle. With a generator does the speed (rpm ) make a difference at what the charging voltage should be. I don't live that close and didn't have a meter to check the system with me. Please let me know and thanks in advance.
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