05 Rinker 320 FV Gas backing up on Starboard side when I try to fill it.

pilawam

Ihave asked before and even at my marina where they work on my boat. They say its a clogged vent and blow it out with air, but it seems to work ,but still cant get gas in. I just took it out storage in climate controlled building so how can spidersetc.. are clogging it. What else can it be? Its getting frustrating in dealing with this. Any thoughts what else could it be. The fuel line looks ok and not sag its the same as the port side , but not getting any issues on port side. 

pilawam

I do notice that when I try to put gas in very slowly, I get a gurgle sound coming back up and some gas and bubbles blow out and it clears out and able to fill it. I also notice that my SB side gas gauge doesnt move either, only when it clears out. 

Rich_

Can you get to the tank fittings easily? Find the vent line at the tank and give it a shot of compressed air until it is clear. 
Other possibility- if boat was filled with 5 gallon cans at some point maybe the spout fell off in the fill line and is causing a slight obstruction?

pilawam

Thanks, no never used cans to fill it, only at the marina. I have to remove the cockpit fridge to get at the tank. I have to do this anyway this weekend as I have to get to some of the floor lights to replace. I will check that thanks.

raybo3

Really sounds like the vent is plugged. 

LaRea

pilawam said:

... when I try to put gas in very slowly, I get a gurgle sound coming back up and some gas and bubbles blow out and it clears out and able to fill it.

That's what I have to do on both sides.  If I just stick the pump in and squeeze the handle, it will back up and shut off the pump.  I have to pump slow for the first 15-20 seconds, then I can go full speed.  It has always been that way.  

pilawam

ok, anybody come across this issue, boat was out on the lake this weekend and Saturday, try to fill port side went well with pumping gas, but starboard still an issue. What is wierd gauge showed full. Got on the lake for the two days, all of sudden gas gauge on SB started to move and at the end of yesterday i was less than half a tank. gas vent was blown out with air, Could it be that the SB is just full with gas or is there something else going on? The float maybe , very confused as to what is going on. Everyone I talk to feels the vent is the issue,but I dont think it is. I thought maybe I was running on one tank but having the SB gauge now moving dont think that is the issue or can a valve be stuck. 

TonyG13

Have you checked to see - and manually open/close - your valves to make sure they operate correctly? There should be three. One for each tank and a cross-over valve. See that they are all in the proper orientation (Starboard open, port open, crossover closed).

It's also a good idea to manually operate and inspect the condition of all your valves, including thru-hulls, at least once a year just to keep them from seizing up over time.

LaRea

Could it be an issue with the tank level sender, such as a faulty ground connection?

rasbury

If bugs get in the vent does that cause back pressure?

pilawam

Finally got into the engine compartment. Look at vent hose on SB side and compared it to Port side. THere was a dip in the SB vent hose. Got a couple of zip ties and position the hose just like the Port side. So hopefully this was the issue. Still going to blow some air into to. Hoping though it was the dip in the hose

rasbury

Let's us know but I had suspected venting from your first posting and I think lerea had the tank was full and not reading...

pilawam

will do