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Originally Posted by DKGandBH
On a side note, The "air" cooling in a misnomer...They are "oil" cooled, and the oil is cooled by the air.
As the water is cooled by the air in "water" cooled engines.
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do you mean there are huge oil jackets around the cylinder?
maybe with a jacket oil sirculation pump ?
in that case an air cooled engine would be even quieter than a water cooled one as oil is a "softer" fluid and has a higher tendency to dampen vibrations.
sound waves even moves at a lower velocity in oil.