LOTS of water in fuel. HELP!!!

ricwrocket86

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Joined
Jul 31, 2009
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25
Took my 98 Bayliner capri out for the first time today. Got about 45 seconds out in the water and it just started bogging like crazy. Checked everything and didnt see anything out of place. It would rev fine in nuetral but would bog in gear. So I pulled a fuel sample in the middle of the lake and sat for about ten minutes. Sure enough, I got about half a tank of fuel, and half a tank of water. The boat sat for 6 years so I should have known better. So the question is, what is the best way to get ALL the $70 of fuel out of the tank and get the tank bone dry and clean. I can put a pump hose down the fill neck or the sending unit hole but I cant actually get in the tank to clean it. Any advice? Im sure Im not the only person who has had this problem before. :confused:
 

WizeOne

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Mar 23, 2008
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2,097
Re: LOTS of water in fuel. HELP!!!

Easy enough. Position the boat in such a fashion that you can get a semi-rigid syphon tube down into the low corner of the tank. Let it sit so the water settles to the bottom. Start the syphon into an open 5 gallon bucket. (have additional on hand if you have that much water in the tank) Syphon it until you start seeing gasoline come out, then stop.

Change your fuel/water filter cartridge then run the tank out. Refill and change the cartdrige again and you will be good to go.

Then go figure how you got so much water in the tank in the first place.
 

1980Galaxy

Petty Officer 1st Class
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Apr 11, 2009
Messages
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Re: LOTS of water in fuel. HELP!!!

$70 of fuel 6 years ago? at the prices 6 years ago, would that make it a 65 gallon fuel tank? and if half of it is really water... then i would assume a 130 gallon fuel tank. correct?

im sorry... i cant control myself sometimes :D:D:D
 

airdvr1227

Lieutenant Commander
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Jul 15, 2009
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1,666
Re: LOTS of water in fuel. HELP!!!

Did you put new fuel in recently? Possible where you purchased the fuel has a water problem?
 

WizeOne

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Mar 23, 2008
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2,097
Re: LOTS of water in fuel. HELP!!!

$70 of fuel 6 years ago? at the prices 6 years ago, would that make it a 65 gallon fuel tank? and if half of it is really water... then i would assume a 130 gallon fuel tank. correct?

im sorry... i cant control myself sometimes :D:D:D

I daresay that he doesn't have that much water, let alone that much gas. If he did, he would have never gotten the motor started. But even a couple of cups worth of water could wreak havoc if the fuel pump gets a full gulp of it.
 

1980Galaxy

Petty Officer 1st Class
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Apr 11, 2009
Messages
339
Re: LOTS of water in fuel. HELP!!!

If the gas was sitting in there for 6 years, you definitely have a ton of gunk and water in there.

I was a fueler in the army and we had a tanker break down for a few months and the fuel in the back was so nasty there was nothing we could do with it. absolutely nothing. all kinds of bacteria and sludge can grow inside a fuel tank as well as accumulate water. you need to drain all of it out and change all the filters and see what that does for you.

im surprised it ran at all.
 

ricwrocket86

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Joined
Jul 31, 2009
Messages
25
Re: LOTS of water in fuel. HELP!!!

When I bought the boat the fuel cap was broke so over the years moisture and rain has been getting in the tank. The boat would crank and run fine on land so I figured the little bit of gas that was in there was ok. So I filled it up with premium and figured it would even out with the old gas. Dumb on my part, premuim doesnt compete with water. lol So now I gotta get it all out and start over with fresh fuel. I just dont wanna think I have it all out and fill it back up just to find out I still got water in the tank. But I guess if I let it sit and let the water settle it will get all that first.
 

1980Galaxy

Petty Officer 1st Class
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Apr 11, 2009
Messages
339
Re: LOTS of water in fuel. HELP!!!

after you get all that fuel out and change the filters, i would fill up the tank and run it out and change the filters again just to make sure. you could still have some crud left in the tank when you done as well as whats left in the fuel lines. after you change the filters again, you should be good in my opinion.
 

gadget73

Petty Officer 1st Class
Joined
Jun 20, 2009
Messages
308
Re: LOTS of water in fuel. HELP!!!

If you can access the top of the tank, usually there is a plate where the fuel gauge sending unit is mounted. Remove that, and you can probably get something all the way to the bottom of the tank without much effort.
 

ricwrocket86

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Joined
Jul 31, 2009
Messages
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Re: LOTS of water in fuel. HELP!!!

Will start working on it tomorrow. Thanks for all the help guys
 
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