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Originally Posted by MNBoxster
Hi,
I agree, it's best to take it easy with any New engine. But, I think you need to make a distinction here between a New engine and what Porsche refers to in all it's internal literature and TSBs as a Replacement Engine, not a new engine. I think we'd find there to be a distinct difference.
I have a good friend who is South African, but lives in California. He came to this country 20 years ago as a Factory Trained Lotus Mechanic, working for Lotus USA, whose job it was to take failed warranty engines and rebuild them for Lotus.
These were stripped and any faulty parts replaced, while all others were measured and if found within spec were reintroduced into the new engine. The reassembled engines were then shelved as certified replacement engines.
I suspect Porsche operates under much the same procedures, albeit perhaps not located in the US. This would explain why the replacement engines don't require the standard break-in that a truly new engine would require. If you read the Dealer TSBs on replacement engines, you'll find that many of the ancillaries, such as waterpumps, alternators, intakes, etc. are not supplied with the replacement engines and must be exchanged with the failed warranty engine. This says, to me at least, that Porsche is using replacement cores and not total engines...
Happy Motoring!... Jim'99
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According to my service manager, the replacement engines that Porsche uses are actually new motors. However, they do reuse certain external parts, such as fuel injection units, pulleys etc.
In that sense, they cannot claim that the engine in "new" but I have been assured that the block and all internals are all brand new.
For what it is worth1