I look forward to hearing from anyone looking for repair or troubleshooting information. My specialty is Farmalls 706 through 1466 but I have quite a bit of experience on older and newer models. Sorry I don`t know very much about the "F" series ,they were way before my time. I really enjoy diagnosing problems and the older I get the better I get at telling people how to do the work rather than doing it. In conjunction with my repair shop I started a IH tractor parts webstore www.redrunrite.com this site is linked to my store on ebay also. I have access to many great aftermarket suppliers of tractor parts that I use in my shop. I picked out some of the most commonly replaced items from the best of my suppliers. I have access to many more parts for IH and other makes, but in my stores I only feature IH parts. JLS