Could well just be normal operation to be honest - although I'm mechanically minded, I don't have the experience on engines to just be able to hear things like that - I can track down an obvious fault, but I could well just be being paranoid with the ticking!
I keep trying to score some seat heating elements from stdrivers when people are breaking, since they cost daft money new.
You've got me thinking now Howard, if I sort the seat and the tensioners, then she's back to near as dammit mint condition.
(Help OcUK, I'm being converted to a mini-Howard!!!)