If you were to do what you suggest in the diagram, your engine would last about... 3 minutes?
With those lines blocked off, there is no flow unless the T-Stat is open. That's the purpose of the secondary line back there in addition to the heater line, together they add up to the same flow as the hose going to the radiator.
Once the T-Stat opens, most of the flow will go through the radiator rather than those secondary lines, but until then, that's the engine's life line.
Make sense?
Quote:
Originally Posted by wstar
It seems like one should be able to do this (note 4x red lines where you'd block things off, and 1x blue arrow showing a change of direction from the original diagram):
But in practice some of those spots are hard to block off reliably. I think where the stupid double metal pipe enters the side it's actually a female opening on the head, right? But maybe a cut down version of the stock fitting, and then cap it off an inch or two later. |