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[attachment=8664]There are two of these spray nozzles, one on each side. The PVC pipe attached to them appears to come from a solenoid valve back in the water compartment although the piping is difficult to trace back. Are they some kind of a system to mist the radiator with water for extra cooling?

[Fulltiming]

That appears to be an owner installed misting system to use during long assents in hot weather. If working properly, it will increase the heat transfer from the radiator.

[encantotom]

michael is spot on. it is a misting system to cool the radiator more. i have to admit i considered doing one when i saw one on another 8v92 when i had mine. high temps going up long steep grades always scared me with the 90.

tom

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I guess you would have to use it a lot to have problems with mineral buildup. The physics of it make a lot of sense.

[kyleb]

For what it's worth, my Newell came with a bunch of tech bulletins - one discussed capacity of the cooling system -- If working properly, at full power, it will reduce the coolant temp by 125F.

So, anytime the ambient temp is above 85F . . . .

[Fulltiming]

A couple of alternatives: 1) use sparingly and watch for the beginning of mineral deposit buildup on the radiator or 2) tie it into a separate container of distilled water so mineral buildup is not an issue. Distilled water at Wal-Mart is pretty inexpensive by the gallon.

[Tf175]

That looks interesting , wouldn't be too difficult to make . Distilled water a good idea.