So I was out 27 miles fishing on Friday and had no issues other than I would have to trim one motor up to get up to 4000 rpms. Came in and replaced the spin on racor filter. Pumped the bulb, cranked it up and let it idle for about 10 min to purge the fuel lines.
Come back an hour later to drive the boat and the motor ran fine for about 10 min, shut off and I could pump the bulb to get it to start, but would not run when I raised the throttle. Came back the next day and got it to run, switched fuel tanks other motor ran perfect on either tank and either racor filters. The one ok up to about 3800 rpms and it would fall on it face every 10-15 min then it would be fine for another 30 min or so.
Brought the boat home and replaced the HP fuel filter today thinking that was the culprit and noticed the o-ring was pinched and probably been sucking air. Put new o-ring in and still would not start. I can hear the HP pump whine for the 2 seconds, but no fuel in the HP filter and very little fuel, maybe 1/4 cup came out the VST drain. Definitely not a pint or two.
Pulled the VST and hit the screws with blaster to soak for the night so I can open it up and clean it tomorrow after work. The VST definitely feels like it doesn't have much gas in it.
My thoughts:
1. the HP fuel pump is toast from sucking air, runs but cant push the gas at the proper pressure. Fuse is good
2. Float stuck on the VST and not allowing enough gas into the chamber
3. LP fuel pump is gone and cannot supply enough fuel for the VST and air is present..
Am I on the right track? I am open to any suggestions, or issues I am not thinking of.
Thanks for any help!!
Byrdman
Come back an hour later to drive the boat and the motor ran fine for about 10 min, shut off and I could pump the bulb to get it to start, but would not run when I raised the throttle. Came back the next day and got it to run, switched fuel tanks other motor ran perfect on either tank and either racor filters. The one ok up to about 3800 rpms and it would fall on it face every 10-15 min then it would be fine for another 30 min or so.
Brought the boat home and replaced the HP fuel filter today thinking that was the culprit and noticed the o-ring was pinched and probably been sucking air. Put new o-ring in and still would not start. I can hear the HP pump whine for the 2 seconds, but no fuel in the HP filter and very little fuel, maybe 1/4 cup came out the VST drain. Definitely not a pint or two.
Pulled the VST and hit the screws with blaster to soak for the night so I can open it up and clean it tomorrow after work. The VST definitely feels like it doesn't have much gas in it.
My thoughts:
1. the HP fuel pump is toast from sucking air, runs but cant push the gas at the proper pressure. Fuse is good
2. Float stuck on the VST and not allowing enough gas into the chamber
3. LP fuel pump is gone and cannot supply enough fuel for the VST and air is present..
Am I on the right track? I am open to any suggestions, or issues I am not thinking of.
Thanks for any help!!
Byrdman