Today I finally got the Loco back from the US.
After a 15min track run I picked it up on the table and shot a small video clip.

Could someone please look at it and tell me if this sounds normal.
https://streamable.com/7ywyv

To me it's very loud and the clonking sound is still there.
Could someone make a smiliar video so I can compare the sound. 

I've lubed  the loco up more, heavy oil at all external points and a toothpick of grease on the drive gear.

The clonking only happens when driving it forward. Backwards it's quite.

Tried to locate the source of the clonking when lifted of the track. Sound like it comes from the drivebox.

Thank you both for some input in this matter.

I don't think it's some of the rods unfortunately.
Everything is precisely lubed up when I shot the clip.
Including gears with grease.

To me looking closely at it, it seems like the drivewheels are twitching a bit at every clonk.

Joe zullo the blinking light is reflection of the fireplace behind me , thankfully:)

I recently bought a "night before Christmas" starter set.
I've been driving it carefully approximately 4 hours.

Yesterday I drove it without sound and noticed a clonking sound.

Please see video below.
https://streamable.com/gggsq

Is this normal?
What can I do about it?