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No, that's a broken piston and its associated cylinder bore !!
The darker grey half circle located just below the broken piston crown is the piston ring.
It shouldn't look like that......
If your IMS bearing collapses, the piston and valves can collide and cause damage as in the picture
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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; 05-23-2015 at 09:02 PM.
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