Thanks for all the information. I've come to understand that the fan is definitely too far away from the radiator. The engine sits low in the engine bay and part of the fan is below the radiator. The radiator looks like an original (It has Harrison on it and I just found some paper work that shows it was re-cored in 2005.) I've purchased a new Northern radiator but can't get the paired shroud with electric fan locally. I found one at Brother's which fits the '47-'54 radiators. So I think I'm on the right track. There are no leaks, I've bought a new thermostat. I was thinking of putting a new cap on (12# or 14#?) as the one that's on there (although it's nice and shiny) doesn't have any indication of pressure on it.
