hello,

The Daihatsu Terios and the engine is making this sound when i start

and after 15 to 30minutes the sound almost fades completely away, it's a gasoline engine,

any idea what this could be? i have asked different mechanics and they told me different things: the pistons, the bearings, crankshaft... 

Please help.

Thanks!

I didn't find the right solution from the Internet.

Reference:

http://forums.automotive.com/70/9757...-engine-sound/

3D animated video