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Re: Special Antifreeze for Diesel?
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Posted by Jerry/MT on June 02, 2005 at 17:34:42 from (206.183.120.246):
In Reply to: Re: Special Antifreeze for Diesel? posted by fixerupper on June 02, 2005 at 17:02:09:
It is my understanding that the cavitation pitting occurs because because of the collapse of a cavitation bubble caused by the vibration of the cylinder sleeve that is excited by the detonation of the fuel/air mixture in the cylinder. The very slight rapid motion of the liner causes a small vacuum to be formed as the piston liner moves slightly and this causes a cavitation bubble to form. As the liner moves back, the pressure increases slightly and causes the cavitation bubble to collapse and the forces of the water on the metal eventually cause the liner to pit. Collapsing of a cavitation bubble(s) causes pitting on high speed boat propellers and also in centrifugal pumps and the problem is usually overcome by the use of special materials that resist the pitting.
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