[S12] FJ20E normal chain rattle or do I have a problem?

[sunny1600]

[S12] FJ20E normal chain rattle or do I have a problem?
Hi guys

My silvia S12 GP with FJ20E makes a strange rattle. I have read about the mazda chain tensioner and typical FJ20E rattle on FJ20.com but I am wondering if this sound is normal?
It does exactly like they said that it does rattle when started but it also rattles when I hit the 2000RPM area.

I have included a video of it. Some advice please guys.
http://www.youtube.com/watch?v=0_mBaJ4vZEU

Thanks

Mark