[Amps] water cooled...

[Joe Subich, K4IK]

Gary writes: 

> Even in the tropical climate of Florida, diesel engine manufacturers 
> recommend antifreeze in most engines. This is to raise the 
> boiling point and prevent cavitation at hot spots on the cylinder 
> walls. The cavitation from steam bubbles at hot spots eventually cause 
> holes in the cylinder walls.

This is true in a pressurized system like an automobile engine. 
Unless designed specifically for vapor phase cooling (e.g., with 
a boiler), water cooled tubes should not be operated above 180 
degrees F.  

An automotive cooling system will regularly run 250 degrees or so ... 

73, 

   ... Joe, K4IK