There is a quite loud strange rattle on my 4x4 saph. It increases with engine speed and I can't work out where its coming from. It seems to be low down somewhere as it doesn't seem to be from the top of the engine. It sounds like a timing chain which wouldn't be problem I guess if the YB had one!

It does it on idle out of gear and also when driving.

Bit vauge I know but any common probs that might be causing this?