Originally Posted by samo59
Airscape, its definetely coming from the engine compartment, its in tune with the normal engine noises. AlG, I'll check out the water pump, thanks.
If you suspect the water pump, loosen/remove the belt and turn the pump by hand.
If it's going bad (bearings) it will feel rough and jerky in movement, rather than smooth to the touch.
You can use the same approach for the alternator...