S/N 0G029302
I have a lund pro v se with the 200xri efi on it. It started to sound rough last year. Thought nothing of it. After looking into it. I found a blown piston #2 badly. Tore the engine down to find it has been rebuilt before. I have been an outboard tech for 15yrs now. Never a big merc fan. Anyway #2 has a hole melted through the side of the piston next to exhaust port. #4 is stamped 030 and 015 on #6. #4 piston is scuffed looks like a tight bore job. Cylinder is fine. Here my question. With the exhaust plate off looking at the exhaust ports #1,3,5 all have a nice oil and carbon build up. #2,4,6 have zero build up. Clean as a whistle. Obviously some diagnosis is required. Ive never seen half an engine do this before on a fuel injection. My thoughts are it leaned out. Through one of the many possibly ways.... Have you heard or seen this. Also the previous rebuilder removed the oil injection.
I have a lund pro v se with the 200xri efi on it. It started to sound rough last year. Thought nothing of it. After looking into it. I found a blown piston #2 badly. Tore the engine down to find it has been rebuilt before. I have been an outboard tech for 15yrs now. Never a big merc fan. Anyway #2 has a hole melted through the side of the piston next to exhaust port. #4 is stamped 030 and 015 on #6. #4 piston is scuffed looks like a tight bore job. Cylinder is fine. Here my question. With the exhaust plate off looking at the exhaust ports #1,3,5 all have a nice oil and carbon build up. #2,4,6 have zero build up. Clean as a whistle. Obviously some diagnosis is required. Ive never seen half an engine do this before on a fuel injection. My thoughts are it leaned out. Through one of the many possibly ways.... Have you heard or seen this. Also the previous rebuilder removed the oil injection.
