Started as just a rattle that seemed to occur when around 1,500rpm and not particularly under any load. Got worse after a while and seemed to then occur only when accelerating hard or doing something where there is significant load such as hill starts.
And yes, it does sound a little like an exhaust shield or similar is loose.
Last edited by jester77; 12-04-2012 at 06:33 PM.
Reason: more info added