ok I got a question. I'm taking apart the engine and I have it on a stand and where the thermastat mounts there is like a metal pipe that runs in the the thermastat and obviously it is the coolant pipe, but my question is how do I remove it. I want to remove everything from the engine and clean it off and shine it up, but I can't get this metal tube off and there if like a black canister on top the metal coolant pipe that I can't remove either and I'm wonder how to remove those parts???