I had measured closer to the radiator. and there seems to be a cool spot right in the middle. roughly 10 to 15 lower than the rest. This car use to run at 180 all day now its getting hot. The engine is built and was done atleast 20 years ago. So im thinking the sand sould be long gone. Thanks again for all the help. Not too many 23 year olds even mess with the cool iron anymore.