I have a 1949 Ford 9N that had issues with sparking. I replaced the coil and everything in the distributor itself. Once I got the gap set to .015” I took a power probe and set the ground on the body and the power point in the screw that hold the condenser wire down. With the distributor out of the tractor whenn I rotate the crank shaft the ground never goes away wether the points are together or separated. I can’t figure out if this is normal or not but the tractor still has no spark. Any suggestions?