I am trying to troubleshoot my starting problem. It was running fine about 2 months ago before TS Fay came through here. This is the original 1994 Mercruiser 4.3L V6/Alpha One combo in a 1994 Wellcraft Excel 20SL. Engine S/N is OF272108.
The fuel pump will not run, the accelerator pump is dry and the fuel line above the pump is dry. I did get a fair amount of fuel from the line that runs from the tank to the bottom of the pump. The engine will crank and will fire if "hand fed" a small amount of fuel directly into the carb (I know - dangerous thing to do. I used a very small amount, and yes, I did replace the flame arrestor before cranking it over). Oh yeah, fuel tank is over 3/4 full as well.
Using a DVM, I have checked the wiring at the pump connector. I have continuity through the black wire to ground, but no voltage through the purple w/tan stripe wire, with the ignition on. I cannot locate the other end of the purple w/tan stripe wire after it disappears into the wrapped wiring harness behind the carb.
Electrical seems to be generally OK as the engine will run when it gets fuel as noted above. I have checked every connector and splice I could find to make sure things are seated (I did find and repair one bad connector to the bilge pump, though). Oil pressure registers on the dash gauge when it tries to run.
Anyone have any ideas? I'm not convinced yet that it is the pump itself until I can confirm that the power is getting to the pump.