Hi, I'm an absolute beginner, and know almost nothing about engines so please forgive my ignorance!
So I've lived on my 50ft narrowboat (built 1989) for a year now and over the last couple of months the engine has been emitting lots of smoke, its sort of greyish-blue.
Also, there is a large amount of (what I think is) oil leaking out.
Finally when I turn the engine on to higher revs after a few minutes a loud banging noise starts, sounds like metal banging on to metal, which is disturbing so I turn the engine right down again which makes the noise stop.
I think that all these issues are related, like maybe the oil leak is making the engine smoke and the lack of oil is somehow making the engine make the noise. What irritates me is that I took it in to a marina to have it serviced recently and all they said on the matter is that Listers are prone to do this, without any further explanation.
I'd be really grateful if someone had any insights into it. As I said, I know almost nothing about engines so any help is much appreciated!
Thanks!
D