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  massive fuel leak..??

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Author Topic:   massive fuel leak..??
rbonilla posted 07-12-2001 05:24 PM ET (US)   Profile for rbonilla   Send Email to rbonilla  
on my 1982 revenge '20...every time it rains or i wash down the boat...my fuel tank fills up w/water!!..i mean it fills up...i just finished pumping out aprox 3 gallons of water, before "hitting" good fuel...what would cause this? anyone else ever seen such a big leak?..this can't be just a fitting, or hose leaking...way too much water entering the tank...is my only option to remove the two capitan chairs, remove the supports & rear bench seat...then remove all 15 or so allen head deck screws & pop up the aproc 4x9 foot fiberglass deck base??...help..
:-)

ps: of course we don't smell or see any fuel while running the boat...no evidance of fuel problems at all.....

Clark Roberts posted 07-12-2001 05:29 PM ET (US)     Profile for Clark Roberts  Send Email to Clark Roberts     
Richard, sounds like massive corrosion holes in tank... the only way I know of to find out and fix (or replace) tank is to remove it! It's a big job (I know because I have removed several) but must be done! Happy Whalin'.. Clark
lhg posted 07-12-2001 07:06 PM ET (US)     Profile for lhg    
A partially filled tank in cold weather, allowing condensation in tank, combined with highly corrosive alcohol spiked fuel = this kind of problem. Be sure to install new fuel lines also.
reelescape1 posted 07-12-2001 08:00 PM ET (US)     Profile for reelescape1  Send Email to reelescape1     
And DON'T buy gas with alcohol in it...alcohol absorbs water
triblet posted 07-13-2001 11:24 AM ET (US)     Profile for triblet  Send Email to triblet     
"we don't smell or see any fuel while running
the boat". That make me think maybe it isn't
corrosion, and something is funneling water
into the tank at the top somewhere. Through
the vent maybe? Or through the filler line
somewhere?

I think maybe I'd try to blow air in somewhere
(vent line?) and see if I can hear it coming
out somewhere. Do it in a VERY ventilated
area, no sparks anywhere around, cuz pure
gas fumes are going go come out. And remember that the hull will be full of gas
fumes for a while.

Chuck

eric_from_MD posted 07-13-2001 05:50 PM ET (US)     Profile for eric_from_MD  Send Email to eric_from_MD     
I think the hole would have to be in the top, but I would still think that you would smell gas at some point. With the hole in the top water would enter easier with out much gas getting out. I have lifted the floor and removed the tank out of a 1988 18 guardian 63 gal. If your's is like mine I may be able to provide some pics of the floor, belly, and tank. Good luck Eric
reelescape1 posted 07-13-2001 06:16 PM ET (US)     Profile for reelescape1  Send Email to reelescape1     
DO NOT BLOW AIR IN THE VENT....air pressure is typically 125psi, when tanks are HYDRO-TESTED, its just that....they are filled with liquid (water) and controlled air pressure is gradually put on it, with a gauge. Under the right circumstances, what you could do is major damage to the tank and possibly people...they are not designed to to hold air pressure.
rbonilla posted 07-18-2001 08:06 PM ET (US)     Profile for rbonilla  Send Email to rbonilla     
thanx for all of the reply's and ideas...boat goes into the shop tomorow for repair...i will let you all know once we fig out the problem(s)...

richard / colorado

triblet posted 07-20-2001 10:35 AM ET (US)     Profile for triblet  Send Email to triblet     
Sorry, I didn't mean using a compressed air
line. I meant what I said, blow it in. Lung
power. Maybe two PSI.

Chuck

Tartansailor posted 07-30-2001 10:06 PM ET (US)     Profile for Tartansailor  Send Email to Tartansailor     
I had a Tempo 28 gal. plastic tank under the seat of my montauk. Every time it rained I got water in my tank big time! Turned out to be a rotten seal for the gas line connecter/ fuel gauge plate.
Dick
rbonilla posted 08-04-2001 11:53 AM ET (US)     Profile for rbonilla  Send Email to rbonilla     
thanx to all for replys...it is the hose on top, that goes from the filler neck, down to the tank that was bad...crumbling, etc...we will re fit all lines, clamps, etc...i am relieved it was not a bad tank!!...richard / colorado

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