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Author Topic:   When a water seperator isn't enough!
Eagleman posted 04-10-2001 11:31 AM ET (US)   Profile for Eagleman   Send Email to Eagleman  
I'm concerned that my built in gas tank in my 1984 22'Outrage is taking in water.I can't imagine that I should be able to take out a 1/2 quart of water through the water seperator before the gas visually appears to be ok. I'm also getting a type what appears to be something like a type of scale thorough my water seperator. I'm asking for help for those that can offer some assistance. Maybe a pressure test procedure to do on the tank, or maybe this could be normal condesation from a boat that gets little use and usually has a half empty tank or less.Eagleman
lhg posted 04-10-2001 12:06 PM ET (US)     Profile for lhg    
If the tank is leaking from corrosion, and water is getting in, I would think that gasoline would also be leaking out. If there are no signs of this, the problem probably is condensation inside the tank. A pint of water could easily accumulate in the tank.

There has been a lot of discussion on this elsewhere here, and your described situation of dis-use with a half full tank is exactly what BW warns against when advising to keep a built-in tank full, particularly in winter months. If there is any alcohol in your gas at all, your situation will soon result in a corroded tank. Keeping it full, with MDR non-alcohol Waterzorb added, should do the trick. I would add this to whatever fuel you have left in the tank (it emulsifies the water so it burns through the engine) and run your tank as low as possible. Then fill with fresh gas, put in the Waterzorb again, and put on a new filter. Eventually, you'll get the water and corrosion dirt out of your tank.

Last weekend, the temperature suddenly jumped from the 40's to the 70's, with warmer humid air. When I opened my boat storage garage door, within minutes the entire, much colder, boat was covered with heavy condensation, from the bow pulpit to engines, as the warm air flowed into the cold garage. These are the situations where water condenses on the cold inner gas tank surfaces (if not completely filled) and drips or mixes into the gasoline.

Dave Murray posted 04-10-2001 05:54 PM ET (US)     Profile for Dave Murray  Send Email to Dave Murray     
I think you are fighting a losing battle with the 84 Outrage tank- same as I have done for the past five years on my 78 Outrage-with resultant outboard issues from fuel/water ingestion. I only wish I had bitten the bullet back then and replaced the tank- there is no way that continuous water in your Racor type filter is due totally to condensation- spring maybe, but not all summer- water is getting in somewhere- probably around the fittings. Two dealers have told me that fifteen years is more than we can expect aluminum tanks to last in salt water...Good luck- I'm in the porcess of taking my deck up to remove and change the tank....DSM
lhg posted 04-10-2001 06:15 PM ET (US)     Profile for lhg    
As Dave indicates, your tank could very well be corroded on the bottom corners, from the inside out. All the fittings are on the top surface, accessible through the hatches, so those would be simple to inspect for possible leaks, and to repair if necessary.
dfmcintyre posted 04-10-2001 08:51 PM ET (US)     Profile for dfmcintyre  Send Email to dfmcintyre     
I'd agree with Dave....1/2 qt of water is more than just condensation. If it is corrosion or a slight crack along the top, you might not get fuel coming out, unless it's completely full, but water would go in.

Keep in mind, that the tank cavity can, and does have water running across it from time to time, due to a heavy downpour or real aggressive washing. The factory foams the tanks in place, and this is supposedly supposed to keep water from running down the sides, between the tank and the tank cavity walls and end up down in a small area under the tank.

Notice I said "supposely supposed"?

Guess what.... it didn't in the early 80's 22's that had plastic tanks installed.

I had one. And believe me, it was a bitch trying to figure out why I would run out of gas, with the gauge still registering 1/4 tank. Ok, gauge bad. Fill up, and it would not take the full amount. HUH? Took gauge out, checked, full movement. HUH?

Maybe wrong sized tank. Took measurements, nope.

Hmmm. Called factory. Recall of plastic and replaced with metal.

Seems that, the mold release agent used in the production of the plastic tanks, would not allow the foam to adhere to the tank walls. Water would run down and lodge in the bottom of the tank cavity. Now keep in mind that the cavity is not drained to the rearmost well.

And in the northern states, this water would freeze, and yep, you guessed it, would expand, and bow up the bottom of the tank, right over where the fuel gauge was.

This must have driven the warrantee folks at the factory nuts. Only complaints from the north, but not _all_ complaining, just those owners who stored in un-heated areas.

I was there when the dealer pulled that tank, and left it out, while they were installing the new metal one. It popped back into shape sitting in the warm sun with a big thump.


Eagleman posted 04-11-2001 02:01 PM ET (US)     Profile for Eagleman  Send Email to Eagleman     
If I locate the fittings on top of the tank and take a pressure test on the tank wouldn't that tell me if the tank has a leak in it?I also wanted to email you regarding some questions on a 25' Cuddy that I'm considering buying, how's a guy able to contact you?
lhg posted 04-11-2001 03:57 PM ET (US)     Profile for lhg    
Eagleman - You may have a typo in your E-mail listing. I sent one to you, but it bounced back.
Eagleman posted 04-11-2001 04:20 PM ET (US)     Profile for Eagleman  Send Email to Eagleman     
Got the email address cleaned up.Would like to hear from you.
OutrageMan posted 04-15-2001 06:30 PM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
Eagleman (or should I say uncle),

I think your only course of action is to put in new tanks and lines. Having seen what is happening, and then this past summer hearing that "TING" sound come from the engine makes me think that you would be doing yourself a disservice by not replacing the tanks and lines when you so obviously have to put a lot of money into the motor...

Your caring (when it is not my checkbook) nephew,


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