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More than likely its just from the vario-cam tensioners in the cam housing.
I don't know how many shop hours -- but with the right tools it can be a DIY.
It can be done without removing the engine. Just pull the cam covers (after locking the camshafts)
and R&R the chain tensioners.
If it's from the IMS chain tensioner paddle, then it's a complete tear down... but
that is considerably less likely.
Mike
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Drivers: '15 Panamera Hybrid (wife's), ' 01 996 GT2, 00 Boxster S, '96 993 Çab/Tip (wife's)
Race Cars: '75 911 RSR Replica & '99 Spec Boxster
mike@lonestarrpm.com
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