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Hi everyone,

2005 Porsche Boxster base, 2.7l 104k miles, 6speed manual. Original IMS. I have recently noticed a faint rhythmic knocking from my engine in the last 1000 miles. Oil level is reading fine but it is also very due for an oil change (7000 miles).

I have attached a video. Can anyone tell me if this is normal or if it sounds like chain tensioner, IMS, or any other issue.

Quick 20 second clip, have to listen closely to hear noise


thanks!
Rob
 

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Sounds like a valve. However, in the 986 strange noises were common with loose spark plugs, some that mimicked this type of ticking.
 
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