Engine Ticking / Flint Rubbing Sound?
 

In an attempt to reduce stress in my life, I am reaching out to you for help.

I have been noticing this recently when I am in Drive Thrus, and there seems to be a ticking / flint rubbing sound coming from the engine compartment. I searched the threads and everyone says the valves make a noise sometimes, but I want to upload the video and see if this is normal.

Disregard the ending; a cop drove by.

This video was next to the building.

Thanks for any and all help.

https://www.youtube.com/watch?v=CJn9xeGLIVs

Ester oil is supposed to quiet the valvetrain. Give it a try.