mdlee
Petty Officer 3rd Class
- Joined
- Jun 7, 2009
- Messages
- 76
My Mercruiser 3.7L 224ci is blowing steam out thought the vent hole in the valve cover. I noticed what looked like smoke coming from the flame arrestor atop the carb. I took the hose off running from the valve cover to the flame arrestor, and noticed that the smoke was steam. I bought the boat with the motors not running, so I have no way to know if the motors were run hot. Strangely the motor seems to run fine?? Is this a problem with the head gasket??