Very rare engine noise. help.

[heiwaz]

Hello, is my first post.

I need an expert help, because my car make an stranger noise, I upload a video on youtube:

The car run perfectly, no power loss, no vibration, but this noise doesn't desappear, sometimes make a looser noise.

I change the IMS bearing, but this noise it hear before and after the ims was replaced. I start the engine without service belt for a few seconds, but doesn't desappear the noise. I also open the oil filter and cut the filter paper to find any metal particles, but nothing found. What do you think this noise come from? thanks.

Edited February 24, 2011 by Loren
made video viewable here

[RFM]

Do you have the same noise with the clutch pedal pressed in? If there is a difference, check clutch, release bearing and gearbox.

[heiwaz]

Do you have the same noise with the clutch pedal pressed in? If there is a difference, check clutch, release bearing and gearbox.

Yes, the noise is the same pressed and without pressed.

[RFM]

Try to locate the source of the noise with a stethoscope or something, since the engine produce the same noise upwards with the engine RPM and without the serpentine belt installed, i would take a look on the rear of the engine, bell housing area, i still distrust the release bearing/clutch assy.

[Jake Raby]

Pop the belt off and see if it goes away.. If so its a sub-system. If not, its internal. I can't tell much from the video, but I'd bet sub-system.