1. My CA18 engine seems to not have the all power that it should have. It's like if it only have ~100 HP and not ~180-200 HP that should.
2. The hell is this?

*I'm talking about the little tube that goes to the botom of the engine, just under the idler polley.
I looked in some books and found nothing, it seems that the previous owner put it on, but I don't know for what or why.
Thanks.
