Good luck with that - there's little space in the tube orifice to get a boroscope in let alone angled tweezers as well. I suspect there is no other option to removing the cam cover to clean out all the debris, though dropping the sump will give you a good idea how much plastic has been chopped up by the camshaft and oil pump and how much is still left in the cam cover.
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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.
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