BostonPaul
New Member
Took the boat out for spin around the harbor today and the starboard engine began overheating. I shut it down and made it back to my slip on the port engine. Started it back up and I had no water coming out the exhaust. Did some trouble shooting and it looks like I need to replace the impeller. The water heater and the gas pump appear to be all part of the same unit. I don't want to end up taking half the boat apart to change an impeller. What is the correct way to replace the impeller on a 7.4L Mercruiser?