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Discussion Starter · #1 ·
Has anyone noticed much knocking noise from the rockers or valves? Mine is fairly audible at low rpms and then it goes away once about 2500rpm or so. It it more noticeable at idle than in gear.

A buddy of mine said that it sounded normal, but suggested I double check since he doesn't know the boxer engine that well. He also mentioned that if the valves were the source, then an oil change would reduce it for a week or so, then it would come back. (Apparently slightly increased RPMs at idle with no corresponding increase in oil pressure is a possibility.)

What do yall think? I just want to make sure the car is still running right..... only 3700 miles so far.
 

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Discussion Starter · #3 ·
I think I can hear the same noise when the engine is warmed up, but it is very faint. I'll check again tomorrow and see if I can make sure.

Mid to Hi revs the engine sounds and feels great.
 
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