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Water in fuel issue...Opinions?

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Water in fuel issue...Opinions?

Old 03-15-2018, 02:59 PM
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Originally Posted by Unlimited jd
Did this get resolved?
Not yet... Working on it. Last week, I checked the tank and got the normal "pint" of water out. Then, I washed the exterior of the boat, not getting any water inside, or on the deck of the cockpit. Waited an hour and checked the gas, no water. A few hours later, I washed the interior of the boat. Waited an hour and checked the gas. Just a few ounces of water. Will keep at it and WILL figure this out. My theory is pretty much that it's either sucking humid air into the tank through the vents... which doesn't make any sense because every boat would do it......or it's what Boomer and Bikergja have said...Pin holes in the top or edges of the tank.
Those are the only two possibilities. We really, really like this boat and I'll do what it takes to make it stop getting water in there. I have to, because we are trying to decide if we should re-power from the 2-strokes (250EFI's) over to some Verados. (350's or 400's). That means keeping the boat for a loooong time. Can't do anything until this is resolved
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Old 03-15-2018, 03:02 PM
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And thanks for all the responses. Will update this thread as I go...
Craig
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Old 03-15-2018, 03:37 PM
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Craig, are you sure its water and not Mich Ultra???
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Old 03-16-2018, 11:16 AM
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Originally Posted by omerta one
Craig, are you sure its water and not Mich Ultra???
LMAO!!!!
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Old 07-18-2018, 12:46 PM
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If you think it's condensation, tape up the vents and see if it still happens.
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Old 07-18-2018, 12:59 PM
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not being a boss here but have to chime in for safety reasons, DO NOT tape up any fuel vents period or block off any fuel vents off.. Fuel expands and builds pressure thats why the fuel is vented to begin with especially vented hugely (atmosphere) for marine applications. If you restrict fuel venting possible huge issues as fuel vapor builds causing blow up. The hotter the air temp the more fuel vapor and pressure will expand. / build. Again a safety post here.
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Old 07-23-2018, 02:26 PM
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If its the tank like a few above have said and water is trapped around it, would a moisture meter not find that water?
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Old 09-01-2018, 12:42 PM
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I have a 35' twin 2cycle 250EFI outboards also on my boat that had 0 issues with water in fuel for 7 years in a brackish environment. Hung in sling the whole time. Full dose Sta-Bil every fill up. Fuel filters changed annually with little if any water (I always checked).

NOW - we move the boat to our new house in Galveston, which is full on salt environment and this summer alone have had to change the fuel filters twice on each engine, and pouring out the filters gives me almost an inch of water!! I can only blame condensation. There have been no other changes. Possibly bad gas but buying it at the largest marina in Galveston.
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