Quote:
Originally Posted by crofts
Don't know if it's relevant here but one thing I remember from letures is that a centrfugal pump (which is what all car water pumps are) does not create pressure as such. It just thrashes around in the water until there is no impediment to flow. Completely different to a positive pump
|
It does create pressure, connect a hose to the outlet, and see the water rise. The higher it rises, the higher the pressure. However, there is a limit to the pressure, and it is rather low, after which it will just trash the water.
Compare that to a positive displacement (gear/piston etc) pump. Here you will have pressure of a nature that the jet can shoot through you hand, or crack a cylinder or bend a conrod!
The thermostat in the Diesel will have nothing to do with pressure would be my thinking.