I posted a message about a non start situation about 2 months ago. Here is the original posting:
http://www.ytmag.com/cgi-bin/viewit.cgi?bd=farmall&th=871617
Just pulled the distributor today. The teeth on the distributor look good. With the distributor out, I turned the engine over and the drive gear inside the housing is not turning. If I push on it, it will engage and spin, but will stop spinning eventually. It is looking like there is a spot, either on the distributor drive gear, or cam gear that has lost teeth. Is this a major job? Sounds like the front needs to come off to reach the gear.