I've started to notice a chatter recently coming from my engine. It's loud enough to hear in the cabin when I first start the car in the mornings....but as the car warms up the chatter dies down.

If you notice at 0.24 it sounds like it's coming from the furthest left cylinder. Ideas?

Stock b18b1

http://s81.photobucket.com/albums/j2...=IMG_09231.mp4

 

Hopefully someone with more experience could shed some light on this issue, but it sounds like valve noise. You may need an adjustment.

 

I'm thinking the same. Car is at 150k...I'll update once I check the valve clearances