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Mike, as I understand it, IF the IMS bearing collapes and allows the central bolt to "float", then yes it will allow the timing chain(s) to jump the sprocket - what I'm not sure of if jumping one tooth allows piston / valve contact. There are many people on here that can answer that. But its the metal throughout the engine that will be the killer.
If your mechanic says there is metal particles in the filter, its not good whether its non-magnetic white metal from the big end / main bearings or magnetic steel from the IMS ball bearing. But if its only a few specs, there may be still hope......
Perhaps its time for you to have an Porsche expert inspection on this (not just a mechanic) as, after all, you are looking at the difference between parting out your car at a great loss or the possibility of resurrecting the engine.
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2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
Last edited by Steve Tinker; 11-03-2010 at 01:24 PM.
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