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Fuel Tank Leaks

Discussion in 'Post Yacht' started by Ave Maria, May 23, 2012.

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  1. Ave Maria

    Ave Maria New Member

    Joined:
    Jul 11, 2011
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    22
    Location:
    Apollo Beac FL
    Anyone know of any issues with fuel tanks leaking in late 80's 46 Post's had a conversation with some and he stated they were prone to fuel leaks , not having any problem's yet but would rather replace as maintenance not while cruising in the Key's or in route to the Bahamas
  2. NYCAP123

    NYCAP123 Senior Member

    Joined:
    Mar 14, 2008
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    11,208
    Location:
    Long Island, NY
    It's a 30 year old tank. Nothing "prone to" if it's lasted this long. You're dealing with individual cases based on care and conditions. Can't hurt to have it cleaned and inspected though.
  3. RT46

    RT46 Senior Member

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    Feb 22, 2011
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    1,059
    Location:
    Long Island, NY
    i dont think they known to be prone to leaks,

    They are heavy welded construction, steel i think, not totally sure.

    keep the water out of the tank, and keep them dry on the outside, and they should last a long long time.

    I would not replace the tanks unless it was leaking.

    somewhere in the Post Forum there is a description from an owner/operator who decribes removing the tanks without cutting up the deck.

    first remove the generator, then the front tank, then cut the rear engine room bulkhead and slide the rear tank forward and remove through the salon E/R opening and out the door. install in reverse......

    when it does come time to replace the thanks (hopefully never) One advantage is that new alum tanks will be alot lighter than the OEM tanks.
  4. mwwhit1

    mwwhit1 Senior Member

    Joined:
    Jan 19, 2006
    Messages:
    239
    Location:
    a
    Never heard of any tank leaking issues affecting many boats. I'm sure there are a few individual cases and specific reasons for them.

    I drain the compartments under the tanks once or twice a year just to keep them as dry as possible. Very little usually comes out.

    On my boat it is a single PVC pipe in the bilge that comes out under the stairs just forward of the front engine bulkhead. Probably in the same location on the 46.
  5. RT46

    RT46 Senior Member

    Joined:
    Feb 22, 2011
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    1,059
    Location:
    Long Island, NY
    yup, i agree w Mwwht1,

    Post is not know to have fuel tank issues.
  6. Capt J

    Capt J Senior Member

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    Jul 11, 2005
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    Location:
    Fort Lauderdale
    I agree also, and also feel that 30 years is a long life for a metal tank in any sportfish.
  7. coastalgeorge

    coastalgeorge New Member

    Joined:
    Apr 4, 2012
    Messages:
    42
    Location:
    Red Bank NJ Navesink River
    I just purchased a 46 post, 1988, it had its tanks replaced in 2009. small weepage in welded seam on foward tank, i was told by owner that the tanks were made by a NJ company, the original tank builder is still in business, in NJ and when i take delivery i can get you the company info, i remember it is a set of initials that starts the company name. also now that post is back in the swing of things i am sure they can steer you in the right direction. It was mentioned that the cost was $15,000.00, again this is third party info i am giving you, not even sure if that included labor and incidentals. Good Luck.
  8. shawn

    shawn New Member

    Joined:
    Feb 13, 2006
    Messages:
    126
    Location:
    old saybrook ct
    tanks

    Had to replace my in a 77. Called the factory and spoke with one of the old timers. He told me not to cut the floor in the cocpit, both tanks will come out the door through the engine room. He said you will have to cut the stringer between the two tanks and put it back when the new ones go back in. Pull the gen, cut the floor a foot back to the door. He was right both tanks went out trough the engine room. Re-tabed the stringer back in place put the floor back together. This was a lot better than cutting the floor and the glass work that have to be done.