Good morning. I just joined the NTC today ad have a question to put out there. I have owned my 1952 8N for about 20= years. Did a complete engine rebuild two years ago to to take care of high oil consumption and fowling. It has been running great, but a week ago no start due to no spark while cranking; key switch on + push button switch. When I release the push button on the trani cover the plugs spark great as the engine makes a few more rotations. So, I by passed push button switch; same thing. Then by passed the key switch; same thing. There seems to be a bad ground somewhere. I tested the coil, condensor, points, cleaned and gapped, etc... - all good. Any sugestions? Thanks, John B.