I have a '72 Winner with orignial Mercruiser I/O. I think the outboard is pre-Alfa, just because of the age. I noticed this weekend when the outboard is trimmed up that the lower bellows, I guess exhaust, does not connect to the lower unit. It is not even long enough to stay connected. It is not broken. Is this bellows supposed to be this way, or did the former owners get an upper bellows instead of the correct lower bellows?