When the head was off I closely inspected the block, cylinders, and pistons. I was actually surprised at how good everything looked for a 35 year old motor. I did take the valves out of the head for a thorough cleaning. I didn't do a valve job because honestly they looked that good. I didn't...
I have a 1987 Four Winns Horizon 196 Sport with the Mercruiser 3.0 4 Cyl. She was flying across the water and started bogging down and just died. From all my research I thought I had a blown head gasket. Tore it apart, meticulously cleaned everything, inspected the block and cylinders and...