Right, here I have added another component to the radiator system. Not sure what the pipes all do but if you refer to the image I posted of how it actually all looks you will see I have got it fairly accurate.
I remade the water pipes (you will notice that the sprue colour is now a darker colour) this time the sprue comes from Dragons 1/6th panzer II, the metal pipe and plastic ends is just leaning against the two side pipe for now this is just to establish that everything should be where it is.
From above you can see the relationship the pipes have with one another. I assume that the large round cylinder is the radiator filler funnel.