[QUOTE=RPowers;19467].

I'm experiencing what seems to be a fuel starvation problem.

Starts and runs fine, then about 10-15 min later the engine dies, studdering as from fuel.

If I wait a minute, it will start back up and run again for anothe 10-15 min.

I have changed both fuel filters.

I have 1/2 tank of fuel, and there is a gravity flow from the tank down to the first filter.

There is fuel coming out the final hose from filter #2 to the injector cluster.

Is there a specific amount of fuel per minute that should be coming out?

Is there some other air pocket of vacuum leak that is causing this?

Help!

.[/QUOTE]

Check the tank vent. Could be clogged. One thing you could try, if it's not wet out, is to motor with the filler cap off.

[QUOTE=RPowers;19473].

Clogged Vent sounds just like the ticket.

It "feels" like it takes a while for the vacuum pressure to build, leading to engine stop.

Where exactly is the fuel tank vent? Same as the overflow port?

.[/QUOTE]
I think they are one and the same. Mine leads aft, exiting the transom on the port side. Same type of vent fitting as the water tank vent that's in the cockpit.

Rick

the fuel tank vent is on the aft side of the transom/pushpit. If I remember correctly its on the same side of the walk thru transom as the fuel tank (port) for you and I (only a couple of serial numbers apart). It looks just like the two water tank vents on the starboard side of the walk through.... You would get fuel out of the vent if you overfill/fill to fast the tanks.

Rick,
How are your fuel lines - any air leaks?

If your boat is set up the same way my '97 is, the Racor filter/water separator is on the vacuum side of the pump, so a loose filter or other fitting could suck air and create bubbles. That will cause the symptoms you reported. I had a fitting leak on the filter on my first boat, and that was exactly what would happen, run fine for awhile, stumble, stop. You may need to bleed the air from the lines to totally get rid of the air; hopefully, tightening the filter will solve the problem and you can move on to enjoying your boat..!!!

PS. Did you check the mesh screen in the lift pump? Sounds unlikely but anything's possible if it causes something inconvenient.

I had a similar problem but eventually it stopped running completely. It was caused by a blockage where the fuel hose goes into the primary water separator filter. The hose goes into a fitting that makes a 90 degree turn down into the filter. That's where the blockage was.