What Is Diesel Blow-By?
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What Is Diesel Blow-By?
“Blow-by” is a fairly common term across all types of engines—diesel, gas, etc. For diesels, it’s when compressed air and fuel in the cylinder bore is greater than pressure in the oil pan, and gas leaks past piston rings and down into the crankcase. When this pressure in the combustion chamber becomes too great—typically during
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