Help please, weird sound

[wael_om]

I faced this sound in the morning, it rarely happens, but it happens frequently 3 weeks ago, specially in tho morning or after long stop, specially in hot weather. Please refer to the attached videos.

Commodore Sv6 2008

 

[Fu Manchu]

That sounds like timing chains hitting the inside of the front cover.

 

[wael_om]

That sounds like timing chains hitting the inside of the front cover.

Thank you, engineer said timing set also.