dudes. in florida with my car, which about two weeks ago started making a knocking noise after starting it one time. Been doing it ever since, sometimes its loud, sometimes its quiet. Sometimes it doesn't do it at all.
Oil pressures seem normal, 30-40psi hot idle, 70-90 cruising. Same as they have been since day one. Changed the oil a few days after the noise first occured, didn't see any excessive metalic particles. I have put over 500 miles on the engine since the noise started, engine doesn't miss a beat.
Noise is most clearly heard when placing a 20 inch screwdriver onto pass side cylinder head, right above cylinder one, right behind timing cover.
at first i thought piston slap, which would be odd to just appear out of nowhere. Now that i localized the sound, i am confused. Could a brokem spring/bucket do this?
here's a vid of hte noise, let me know what you think. In the last second of the video, the noise dissapears altogether. so odd.
http://www.youtube.com/watch?v=_XUZH...e=channel_page