I Might have a problem not sure. I have a 1991 merc 200hp Took it out for about 20 min. ran it pretty hard ( since it wass the frist time in water for me ) Came home put the ears on and flushed out motor. It was a chill night and could see steam when the water hit the ground. I was able to hold my hand under the water with out it burning my hand. If it is gettin hot Is it the water pump or the impeller? I ask this after reading a post on here. Any info is always appreatied Thank you. Will