I have a 1984 5.7L 260HP Mercruiser with thru hull exhaust. I know some steam is normal but even on a hot day I see lots of steam in my exhaust while towing or cruising. Are there some exhaust components or something that I should pull and inspect? I just need to know if I should be looking for a problem, or am I just paranoid and need to go back to having fun. Thanks.