This plug same as on my EJ:
Is weeping quite a bit of oil. How do I seal it up?
The subaru manual says not to touch it unless it's really necessary. It doesn't give any details about how to remove it etc. I don't want to pull the cam out either.
But since I've got the engine out it would be best to tackle this now.
The above pic is not mine, I've stolen it from somewhere else as I've been lazy with the photographs of my unit.
Any advice would be greatly appreciated.
Cheers
Bennie