Intake pipe/header tank

Anyone find their header tank is a little loose and making contact with the intake pipe? Mine have been knocking against each other, no real damage but it's starting to wear the plastic and I think it's rattling a little sometimes.

https://vimeo.com/102224633
 
I found that the clip that secures the header tank in the front of the engine bay has snapped. So is conpeltely loose. Didn't notice any damage when securing with wire so I think everything should be with just a bit of looseness!
 
sorry but that looks normal - its only a plastic drive type rivet that holds it in place!

its more likely the inlet pipe that moved slightly
 
can the rivet be replaced as mine has broken, so at the minute is secured with wire, I just haven't know what the part number or name would be? I know its slightly off topic but I've been searching but cant find anything to suggest where I could get a replacement from