I have a 95 Evinrude 150 Intruder The top right cyclinder gets just enough water in it to <br />foul out the spark plug. The heads are good no cracks. I've replaced the O rings on the heads. <br />Is there another way water can get in the cyclinder? short of a cracked block or leaking sleeve?<br />Is there a treatment for a cracked block or leaking sleeve? short of a new block. <br />Any suggestions are welcomed!<br /><br />Thanks<br /><br />Mark O