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Cake day: April 23rd, 2026

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  • If the cylinders get scrubbed and pitted, diesel is under high pressure when it’s injected, and will get forced down into the sump. You can usually tell if there’s heavy blow-by from the crankcase breathers. Usually it’s something like an intake leak that lets dirt into the intake. I’ve also seen cylinder cooler jets fail and a cylinder will melt enough to create a hole. You’ll notice that as a cold cylinder because now it isn’t detonating.

    Diesels are born looking for new and expensive ways to die.