Oil cooling for Listeroids?

[bitsnpieces1]

  I remember back in the mid to late '60s, car manufacturers tried using 100% antifreeze in some car engines, apparently to eliminate water from the cooling system  and hence the rust involved.  The problem was that antifreeze doesn't transfer heat (into it from the block or out of it in the radiator) as well as water so they had to enlarge all of the block passages and enlarge the radiators almost 50%.  And they still would run hot.    Anyone else remember anything like that?   I was thinking that using antifreeze instead of water should help get the block temp. up, still would need a larger radiator.  Should function just like water in a thermosiphon, just at a higher temp.  Also, they have the new nontoxic antifreeze to use.  I don't know how combustible it would be, but, probably nowhere near oil.   

[Doug]

Well I know for a fact that water is a better carrier of heat because I have 1 water cooled electrical machine in my care.

I also have a lot of oil cooled ones.

Point being these are all electric machines. The only cooling oils I am familair with are products designed for transfomers such as Volt Esso, used in pumps, magnets and transformers.

I did not recommend this product based on experience or my theory it would work just my experience that if you are going to use oil as a coolant use and oil intended for the purpose.

I also know for a fact Volt Esso will make an excellent fuel and if it were to leak into the Roid will cause a run away

[adhall]

If you would like to study a bonifide example of an oil cooled internal combustion engine, you might want to look into the Rumley Oil Pull tractor. This machine had an oil-cooled engine which burned kerosene. I understand that the primary reason for using oil cooling was so that the engine could run hotter and burn the kerosene more effectively.

Clearly, oil cooling is possible. Whether it will work well on an engine designed for water cooling is an entirely different question.

Best regards,
Andy Hall

[Doug]

The Duetz 912 series air cooled diesel has been partialy cooled by oil too, but oil never circulated threw cooling jackets rather was sparyed around the inside of the crank case liberaly....

The oil cooler on the 912 is huge in proportion to the engine so its obvious a lot of cooling is suplimented by the luberication system....

Doug

[sid]

the rumley oil pull had a very unusal exhaust system//it was vented thru the radiator and upward to create a draft that helped cool the oil. my friend has 2 of them// very unusal beasts//it starts with a bar inserted in a notches in the side of the flywheel //rotate the flywhell around till you find the correct notch, hook the bar in the flywheel side and pull down..best to wear old clothes when you do this......because they will need to changed when it fires off..... about 40-50 gallons of oil does a good job of cool it///sid

[kltrider]

Sorry folks, been out of touch for a couple weeks while on a job inverview and a little R&R. I didn't mean to start a brawl, oops, "lively discussion," over this. It was just a thought I had, based on the Deutz' use of the oil in pasages around the cylinders and head. Since that's what they're designed for, it would seem that is how they get away with it.