[Engine Rattle near Timing Belt]

Hi there,

Please excuse my novice mechanical language....

I have owned my fox for around 7 months and recently it has developed a rattle near the top of what I believe is the timing belt, where it is attached to the engine itself.

Please see video,

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I let a friend who knows a fair amount about cars have a listen and he recommended that I don't take it anywhere so just now it is off the road.

Any help or diagnostic much appreciated,

Thanks,

danielcraigdunc