eaglesnest
New member
"I have a Mercruiser I/O 2001
"I have a Mercruiser I/O 2001 5.0L M C/AI 220. The Mercruiser Manual seems to be less than helpful, it lists the items to drain but then says if equiped. In inspecting my engine I found 5 blue drain plugs, hoping that is all. I have read the treads posted but most petain to boats out of the water. My winterization is in water. My thought is that can I use an electric sump pump to pump anti freeze thru the cooling system by hooking a hose between the sump pump and the intake manifold??? And also back flush with anit freeze the raw water intake?? Remove the themostat first or just bring the engine up to temp??? Thanks for any advice."
"I have a Mercruiser I/O 2001 5.0L M C/AI 220. The Mercruiser Manual seems to be less than helpful, it lists the items to drain but then says if equiped. In inspecting my engine I found 5 blue drain plugs, hoping that is all. I have read the treads posted but most petain to boats out of the water. My winterization is in water. My thought is that can I use an electric sump pump to pump anti freeze thru the cooling system by hooking a hose between the sump pump and the intake manifold??? And also back flush with anit freeze the raw water intake?? Remove the themostat first or just bring the engine up to temp??? Thanks for any advice."