Should I be worried?

I seem to have oil escaping from the end of one of the camshafts.
pic here…

Its quite a common problem but a small weepage is nothing to worry about, if you want to replace it, its quite easy and doesn’t need anything removing, just drill a small hole in the seal, screw a self tapping screw into it and pull the old seal out, the new one is then knocked in using a socket.
Sounds easy but just make sure you dont drill to far !!