I am pretty sure I have found the leak. Looks hard to get to, but at least I know its external. It is slow, so not overly worried for now, just hope its the only leak.
I have attached photos, you can see the snail trail and because it hits a block that is hot, it dries straight away. Can anyone tell me what part of the engine that is? It seems to be below a drive system of some description, is it a pump?
Photo 1
Photo 2