Quote:
Originally Posted by detours
I couldn't tell you what that sound is, but it doesn't sound anything like my issue. Mine was much louder and sounded just like what it turned out to be ... a piece of metal bouncing around on top of the piston.
The next time you adjust the valves, take pictures of the tappets and rockers. Out of curiosity, what grade of gas do you fill up with?
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I was thinking low octane could cause pre ignition but it shouldn't at idle.