Sundancer Fuel Tanks

[Peiby]

I hope this is the right place to post this... wasn't sure if technical help belonged in this forum or not.

On a 1989 Sea Ray Sundancer, we cannot get fuel into the port tank. When we use a fuel nozzle, the fuel comes right out the overflow. If we use a gas can and pour slowly, the fuel will go in. The tank is definitely not full. Any ideas?

[James S]

Welcome to the forum Peiby.
First thought is there may be an obstruction in the fill line....second...and obstruction in the vent line.

[Peiby]

Thanks for the response James. We have taken the return line off, checked out the relief valve and there doesn't seem to be anything there. We've used an air compressor to try and blow out any obstruction and that hasn't helped. It has been really frustrating to figure out! I thought maybe it was a know problem with older Sea Rays... but looks like not.

[James S]

I'm not sure what the relief valve is that you're talking about is....and the return line? is that the return fuel line you're speaking of?
Have you located the vent line?
What size is your fill line....it would have to be very small to have a restricted vent effect the filling as the tank will vent through the fill pipe when filling.
My money is on a restriction in the fill line....I have never done this but I would think a plumbing snake could be used to probe the fill line.