Right done a bit more investigating,i took rocker cover off didnt really no wat i was looking at but i couldnt see anything broken or worn? The noise seems to be worse when you stand at the side of the car or get underneath,almost seems as though its coming from the back of the engine or bottom?Its like a tapping noise but has a hollow sound to it,you the the sound u get when something is loose and vibrating,but deff not anything loose the tap still there but just trying to explain what sort of noise it is(but not doing very well lol)