Hi!<br /><br />It's funny that when you get one boat working the other breakes down. <br /><br />My Johnson 60Hp -89 had the following symptoms:<br /><br />- low power<br />- low compression (about 95 in all 3)<br />- rattling sound (knocking?, detonation?)<br />- overheating (no alarm, no S.L.O.W, hot to touch)<br />- leaking carbs from the front<br /><br />So I finally took the head off and found marks on the head and pistons that I think are from broken rings. Could it be so that these ring pieces have found their way into the exhaust? Can I open the exhaust cover without taking the engine totally apart (the lower bolts look a little tight towards engine outside cover)? <br /><br />I will take the boat home tonight and start the repair. I hope that I only have to change the rings after cleaning the cylinder walls. Should I do something about the cylinder head? <br /><br />One cause to the problem was a defective t-stat. I put it in hot water but nothing happened. I believe that one should notice when it opens. <br /><br />I will include pictures here when I come further with the repair.<br /><br />Robbi
