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jonny
@Dammit
Well, this is a tolerance issue - specifically a machining to tolerance issue I suspect.
The issue is compounded by the design of these engines, which have a crank carrier that sits inside the engine block itself, and which therefore has to align perfectly.
So it's a manufacturing problem and one might suggest the design didn't help.
But then Porsche had been making basically the same engine for 50 years so some teething problems when they made a new one were hardly surprising. The design issues that Porsche left in will all be rectified, and we'll be building them to extremely precise tolerances (blueprinting, essentially), and this whilst extensive will still come in at a lower cost than a rebuild on a Mezger.