Idle noise DX engine

Hello,


  Can someone help me identifying this noise?

It only sounds when it is idling, as soon as you accelerate it disappears, it is like a chattering sound and it sounds in the lower part of the engine. The engine was completely redone 3,000 miles ago and I also put in the new oil pump recently and checked the botom end and everything was perfect.

Dropbox - Vídeo 2-10-23, 22 48 36.mov - Simplify your life

 Thank you so much.