Ironlegs wrote:About hand lapping my Super A's oil pump housing plate...I'm getting the idea that abrasives are used to reduce the bolt flange thickness, thereby closing internal gaps with the pump's gears...let me know if this is the right idea.
Yeah, that is the general idea. The bottom plate started out with a flat surface. Lapping it will take out any warpage and remove any depression worn into it by the ends of the gears. It may reduce the end clearance of the gears.
Ironlegs wrote:There are very few decent running Farmalls in my region, NW PA, and no informed users and mechanics...everything is Kubota, Ford-New Holland and sheet metal lawn tractors.
That area along Lake Erie was covered with fruit and vegetable farms. It seemed like every one of them had an A or Super A. There have to still be some experts around if you look in the right place!