Hello. I have a 48 ford 8n that I bought in the summer. I am going to use it mostly for snow removal. It has a 8V battery and the regulator has 9.2V written on the cover. I was told the genny was tweaked as well. I assume the brushes were adjusted. If its that type. Problem is it won't charge. Starts and runs fine but only shows 8.2v running and slowly goes down. Any tests for the volt regulator and the genny? I'm new to tractors and 6V / 8V positive ground. Thanks.