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Griffter said:Baz's post is interesting because it's the first time I've read an authoritative view that manufacturing tolerances might at least in part explain why some engines fail prematurely. Thanks Baz.
I bet if we had enough data we could identify roughly which 'batch" is more at risk. Anecdotally it's always seemed to me that 97-99 engines are most at risk from IMS (those fabled iron-coated piston engines...did the tooling for the bottom end change at the same time?...) but of course it may be that many more were produced in that period hence more observed 'failures". For sure, as Baz explains, the dual row bearing seems no better, anecdotally. I'm equally confident that most that would fail prematurely will have done so by now. But mud sticks!
Anyway we'll never know. You do your research, pay your money and take the risk. Or not.
NedHan79 said:Maybe I've picked you up wrong or looked at the graph wrong. Is it not the later 3.6 cars that have recorded more failures?