jrhalling
New Member
- Jul 13, 2012
- 12
- Boat Info
- 1991 420/440 Sea Ray Sundancer
- Engines
- Twin 7.4L Mercruiser Inboards
We have a 1991 Sea Ray 420 Sundancer with twin 7.4L big blocks. We have a problem with the port engine just shutting down after about an hour of running time. We have had the tanks cleaned; checked all of the fuel lines and fuel directional valves for fuel flow, put the solenoids in the manual position to ensure full fuel flow, blown back through the fuel lines in to the tanks to insure that there is no obstruction in the fuel pick up tubes, replaced all of the in line fuel filters, just recently replaced the raw water impeller on the port engine, and have purchased a small electric fuel pump to make sure that we can pull fuel all the way to the fuel water separator before it goes in to the mechanical fuel pump. As I mentioned before; after initial start up the boat will run just fine for approximately an hour before it just shuts down and then will not restart. Any ideas or suggestions on what I could pursue next to see if I can remedy this issue? Any ideas would be greatly appreciated. Thanks