There's a noise coming from the top of the engine. It's not a very loud noise, but it's there. I would assume a valve (or valves). Check the video out and let me know if it is something I should worry about. By the way, the car seems like it's driving fine. I don't know anything in regards to the engine. And yes, I'm aware of the rusty heat shield.

 

Kind of hard to tell with the video. What you can do to pinpoint it is to use a length of pipe, broom handle, ratchet extension, etc place it on the valve cover where you think its emitting and the other end against your ear. This way the sound can be pinpointed.

 

Post a Video It help us a lot!

 

 

Oh my hehe i think its a pic not a video my mistake,
Sound like main bearing or Rockers arms need adjustments.

Here is a link might help you.
http://www.thezcr.com/html/zcbook.php


Chapter 1
Valve Clearance and Adjustment(1-9)

Chapter 2b
Main/end bearing inspection. Engine reassembly sequence and piston ring refitting (2b-11)

Hope its Valve Clearance
Cheers