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Old 07 June 2013, 10:14   #1
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Country: UK - England
Town: Brookwood
Make: Ribcraft
Length: 5m +
Engine: Outboard
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Fuel tank leak

Hi,
Our 5.85m rib has a leak from the inbuilt fuel tank. I know that this will cause a great deal of work to rectify, I'm wondering if anyone out there has had the same problem and can give a rough estimate of time and cost. The rib was built by Ribcraft, who seem to be poor in returning phone calls, advice etc.
Surely a fuel tank is of utmost safety importance, and should be fit for purpose?

Can anyone offer some advice?

Cheers
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Old 07 June 2013, 11:59   #2
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I am surprised at the lack of reply from Ribcraft. I do not have a Ribcraft but have e-mailed them over the years regarding several items and found them very promt and helpfull in reply. I also happen to like the ribcraft boats
TSM
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Old 07 June 2013, 12:03   #3
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Country: UK - England
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You're saying al the right word, safety, fit for purpose, etc but unless the boat is fairly new the words or phone probably won't work, no ones going to put a price on that job, I'm assuming the tank is under the floor and the seat and console are on top of that, lot of work but mostly labour, ie no parts, good luck
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Old 07 June 2013, 14:09   #4
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You've probably looked (apologies if stating the obvious), but if leaking when full etc, are you sure that the leak is from the tank itself (ie through damage), or could it be /have you checked the gasket /seal where the sender unit (assuming you have one) bolts into the top of the tank?

Best of luck
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Old 07 June 2013, 14:47   #5
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Exactly - hopefully it's something accessible like a pipe or sender that's loose. Failing that, is there a way of installing a new tank somewhere else ie inside the console? Would be a lot easier than taking the deck up.
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Old 07 June 2013, 15:04   #6
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Cannot help you with the RIB, but I had to cut a tank out of the floor and replace it on a 21 ft. Proline. If you do it yourself, be sure to research it on line before trying to install one. There are very important safety issues which must be kept in mind, one of which is crevice corrosion. That resulted in a 65 gal tank with an 1/8 inch hole near the bottom of our tank.
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Old 07 June 2013, 15:07   #7
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Those tanks are a minimum of 90l and if it is a standard console there is not much space.

How old is the RIB?
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Old 07 June 2013, 16:28   #8
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The fuel sensor is screwed into a stainless steel pipe which is welded to the top of the tank. So my guess is that the don't normally leak or you would see it.. The tank is a triangular shape which follows the contours of the bow. Ok so next job is to work out whether the leak is on the tubes welded to the top of the tank or lower down. Either way its going to be involved. How do you know it's leaking? Do you get fuel coming out of the drain plug in the bilge or it it wet around the top? Hopefully it's around the top tubes. Then you will need to cut out a section of deck in the console and get it welded. After steam cleaning!

I would be tempted to do a pressure test at say 5psi and see what happens. The drill a small hole in the deck back from the tank and poke a fibre optic camera in.
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Old 07 June 2013, 16:39   #9
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I would be surprised if a stainless steel tank is used. Condensation is a problem with stainless as I remember. I cannot recall why.

Don't know your laws but pressure testing is a standard operation in the States even though they are not meant to be pressure vessels.
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Old 07 June 2013, 17:15   #10
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Ribcraft aren't the best when it comes to getting back to you... been there before. Suggest you speak to Charlie and see what options are.
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