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Jeff Rosen

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About Jeff Rosen

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  • From
    Denver, Colorado
  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2008 Cayman S

Jeff Rosen's Achievements

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  1. From what I understand head failures are very rare in the M97 engines. I also had an engine failure in a 2008 Cayman S this past summer. I'm in the process of planning to rebuild the engine. In my case the engine failed on track and upon disassembly a large D-chunk failure was found in cylinder 6. There was significant internal engine damage yielding that engine not rebuildable. Among the destroyed components were the crankshaft, carrier, both case halves, and the IMS. The heads have bent valves in cylinder 6, but I believe they are rebuildable. From my research D-chunk failures are not uncommon and one of the first typical symptoms would be coolant in the combustion chamber of the cracked cylinders. One of the reasons my engine had so much damage is because it failed at high rpm - if you're lucky you won't have suffered so much collateral damage. Since rebuilding my original engine wasn't an option, I have acquired a salvage engine and am in the process or rebuilding it. Good luck getting your CS back up and running.
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