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J115GLEDR overheat starboard top cylinder

stevend42

Member
I have a Johnson 115 (J115GLEDR) that overheated on the starboard top cylinder. The weird thing is it only over heated on the one side
of the top cylinder. i have never seen anything like this before and I am wondering if anybody else has had this issue. I poked around in the water jackets
and did not find anything that would cause the water to stop flowing in that cylinder. The thermostat cover did melt and popped off of the head when it overheated as well as the temp probe cover failing. thanks
 
I forgot to mention that the top cylinder seal failed and just found out the bottom seal was close to failing as well could this cause the over heating problem?
 
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