What do you think about this noise??

My Lancer is now 1,5 year old and last week i noticed this afoul noise at my engine

http://www.youtube.com/watch?v=291joU4AjKk


What do you think could that be.
As I think, it´s from the intake camshaft timing chain wheel.

Here is an other video from the crankshaft pully!

http://www.youtube.com/watch?v=oJKGGIjo5ME

It´s extreme loud I think, so is this normal??
Anyone knows about engine damage cause of the RRM pulley??

I´m so busy at work at the moment, so i can´t find the time to drive to garage!
I phoned them but they said it may be an engine damage or not, hard to say!
Thanks for your help!

 

Yes, the noise that stops from time to time.

Don´t know but it was the first time I mention this Sound!