Thanks for all your replies!
I saw PCV being mentioned when I read other threads about funny rattles..
So I guess it's either the PCV, cam follower or the chain.
I'll see if I can hear the noise from the other side of the engine, as in the vid it was pretty clearly coming from the cam follower end.
Either way, it will have to wait until January and another 3,000 miles or so.
I just don't have the time to sort it now, and any garage will need it a while to find the cause I guess.
I saw PCV being mentioned when I read other threads about funny rattles..
So I guess it's either the PCV, cam follower or the chain.
I'll see if I can hear the noise from the other side of the engine, as in the vid it was pretty clearly coming from the cam follower end.
Either way, it will have to wait until January and another 3,000 miles or so.
I just don't have the time to sort it now, and any garage will need it a while to find the cause I guess.