plainsman5 Posted July 29, 2020 Report Share Posted July 29, 2020 After every hard downpour I seem to be getting water in my gas tank. I don’t mean a few drops. I’m talking cups! The console is covered. The rod holders are all connected at the bottom and they drain out the rear of the console. My sending unit is completely sealed with a gasket material. I have no gas leakage in the bilge. Any idea where the water may be coming from? The gas cap seems to seal the way it’s supposed to... any ideas/opinions would be greatly appreciated! Jason Quote Link to comment Share on other sites More sharing options...
Capt. Troy Posted July 29, 2020 Report Share Posted July 29, 2020 After your description the only way for water to get in is the fill line/cap or the vent. Concentrate your efforts there. Quote Link to comment Share on other sites More sharing options...
plainsman5 Posted July 29, 2020 Author Report Share Posted July 29, 2020 I will. Thank you Capt Troy! Quote Link to comment Share on other sites More sharing options...
smilemaker Posted July 29, 2020 Report Share Posted July 29, 2020 the fill cap has an o ring that seals it the threads by themself will leak easy to take it off and run to local hardware store and get another. if slightly smaller diameter and a little thicker it will stlill go on tight and seal there used to be information on making a fuel cleaner system here but if neede I will explain Quote Link to comment Share on other sites More sharing options...
DonV Posted July 29, 2020 Report Share Posted July 29, 2020 Replace the O-ring and put a little grease on the new one and the threads. Had the same problem with a Perko filler cap, new O-ring did the trick. Odds are it's around a 1/8" x 1 1/2" O-ring. Very easy to find at Ace, HD, etc. Quote Link to comment Share on other sites More sharing options...
plainsman5 Posted July 29, 2020 Author Report Share Posted July 29, 2020 Thanks fellas. I checked the O-ring last week and it seems to be in good shape. However, I will get a replacement SmileMaker, If you don’t mind I would like to hear more about the fuel cleaner system you mentioned Quote Link to comment Share on other sites More sharing options...
jh141 Posted July 29, 2020 Report Share Posted July 29, 2020 If you have access make sure the vent hose goes upward right after the fitting on the boat hull side. This is done to keep water that might find its way into the vent from reaching the tank. Think of it as an upside down sink trap. I have seen where this was not the case for whatever reason and water found its way into the fuel system. I think Smilemaker is referencing a device to remove water from the fuel (polish the fuel in the diesel world). We have a hand truck with a Racor and two spin on filters and a pump. We connect it to the engine supply from the tank and then back to the tank fill port and run the fuel through the Racor and extra filters. Time consuming but polishes the fuel very well. Not sure I would try this with gasoline. Gas is much easier to ignite. I would recommend a product to help with water in gas.Its called K100 fuel treatment. I have used it in my pathy since new. The gas version really makes a difference. We also use the diesel version and it has done very well keeping the diesel in good shape during the hot summers. Quote Link to comment Share on other sites More sharing options...
SouthernWake Posted July 29, 2020 Report Share Posted July 29, 2020 Are you positive it is rain related? Quote Link to comment Share on other sites More sharing options...
SCFD rtrd. Posted July 29, 2020 Report Share Posted July 29, 2020 Had the same problem years ago and found it to be the vent. Take jh141's advise and reconfigure your vent. You can buy a vent that has a 90 degree elbow. Install the vent with the elbow pointing up. Connect the hose and run it up as high as possible, then make the turn down to the tank. And, put a new O-ring on the gas cap. Quote Link to comment Share on other sites More sharing options...
Shallowminded6 Posted July 29, 2020 Report Share Posted July 29, 2020 50 minutes ago, SCFD rtrd. said: Had the same problem years ago and found it to be the vent. Take jh141's advise and reconfigure your vent. You can buy a vent that has a 90 degree elbow. Install the vent with the elbow pointing up. Connect the hose and run it up as high as possible, then make the turn down to the tank. And, put a new O-ring on the gas cap. Oh man. I didnt think about this, is that the way they are supposed to be installed or is it only if you are having an issue? Thought the 90 went down when I did mine But when Im sitting here typing I can see it being beneficial with the tube going up. Quote Link to comment Share on other sites More sharing options...
MuddyBottomBluz Posted July 29, 2020 Report Share Posted July 29, 2020 Two Points to ponder................... 1st - You put the vent hose higher than the fill port, rather then spitting out the vent indicating a full condition you can overflow into/onto the boat. 2nd - Whatever happened to the good ol'e days of just putting a loop in the vent hose? Just my .02 cents. Quote Link to comment Share on other sites More sharing options...
Shallowminded6 Posted July 29, 2020 Report Share Posted July 29, 2020 29 minutes ago, MuddyBottomBluz said: Two Points to ponder................... 1st - You put the vent hose higher than the fill port, rather then spitting out the vent indicating a full condition you can overflow into/onto the boat. 2nd - Whatever happened to the good ol'e days of just putting a loop in the vent hose? Just my .02 cents. For me lack of knowledge. Quote Link to comment Share on other sites More sharing options...
smilemaker Posted July 29, 2020 Report Share Posted July 29, 2020 to make the fuel polsher/water cleaner you will need following external fuel pump from local auto store racor filter and head with plastic bowl fuel hose long enough to go from existing filter into fuel fill. it has to be rated for gas but clear plastic from lowes will be rated for gas but there is no pressure involved . barbed nipples to fit pump/ filter and hose. wire and plug for cig socket on dash. board for mounting frame. mount filter and pump on frame and connect out flow of pump to filter. run long hose from filter to boat gas fill with enough length to go in 2 -3 feet. connect wire to plug for accessory on console. remove the boats fuel hose and connect to external pump. plug in and let the fuel recirculate as long as you want. you may find it easier to place a hose on pump intake with a barb nipple to connect to the boats hose at the onboard filter. i prefer the stand alone system so I can use it on other things. an alternative is to remove hose from filter to engine and connect the pump after the onboard filter and change its filter. Quote Link to comment Share on other sites More sharing options...
plainsman5 Posted July 30, 2020 Author Report Share Posted July 30, 2020 Jh141, unfortunately I don’t have access to the vent hose. However, I will try swapping out the O-ring on the cap. I started using Sentry for treating any water/condensation that finds it way into my tank and it has worked very well. However, I forgot to add it to my last fill up. southernWake, i’m almost 99% certain it’s rain related SCFD, i will reconfigure the vent of the gas cap doesn’t solve my problem MuddyBottomBluz, great points...above my pay grade 😉 smileMaker, thank you for the write-up. That’s a great idea. I may go that route if I don’t get this issue squared away ASAP. Thank you all for replying to my question. I will give a update as soon as I have one. Sincerely, Jason Quote Link to comment Share on other sites More sharing options...
nhinshoreangler Posted July 31, 2020 Report Share Posted July 31, 2020 I just had a similar situation with mine. First, I got the fuel level down to 1 bar. I added 10 gallons of premium at a time and ran the fuel level back down to 1 bar. At each 10 gallon filling I added a can of Seafoam and changed the 10 micron separator. I did this 3 or 4 times over 4 weeks and it really helped. I don't think I had an active water leak, just an accumulation of water over time from ethanol. Best of luck. Quote Link to comment Share on other sites More sharing options...
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