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Re: Dumbest Question Yet
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Posted by Dr.EVIL on October 09, 2006 at 14:32:45 from (80.254.152.36):
In Reply to: Re: Dumbest Question Yet posted by lee on October 09, 2006 at 07:09:15:
No, Cavitation is the erosion of metal due to the coolant in the waterjacket boiling in small localized areas and the result is tiny pin holes eroding thru the liners or cylinder walls.... as the engine goes thru the compression and power strokes the cylinder walls flex slightly under the pressure and when the pressure is relieved the cylinder returns to it's normal shape & size and the coolant can't react as quickly, the pressure in that area is reduced which causes the coolant to boil until the pressure is increased.
And cavitation is NOT an IH issue only, Cummins, CAT, Perkins, even JD engines can and will cavitate....the only thing required is heat and high cylinder pressure.
There are supplimental coolant additives available that plate the insides of the cooling systems with molybdates and silicates that are sacrificial in that they erode instead of the iron cylinder walls. The fact the ones made for the IH built Ford PowerStroke engines is made by Fleetrite which is a division of CUMMINS shows it's not an IH only problem. Galvanic corrosion isn't the problem.
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