Forums General Discussion Fuel Tank Replacement

This topic contains 3 replies, has 2 voices, and was last updated by  Scott Brown 4 months, 3 weeks ago.

  • Author
  • #225031

    Scott Brown

    Hello all- just wanted to update this old thread with a compilation of the latest information i was able to find/ produce on the subject as related to my own process replacing the fuel tank on Hull # 43 (formerly Morning Glory, Sweet Josie, etc…)

    The attached hand-drawing came from this website from other owners and gave me a starting point from where I was able to verify the outer dimensions without having my tank removed yet.

    then I created a sketchup model of the tank and designed mounting feet for the tank to allow me to remove the moisture-trapping plywood crate that the tank sits inside of.

    the sketchup model can be downloaded from the 3D warehouse- search for “Pearson 424 Fuel Tank”

    lastly I updated the fill/pickup layout to reflect what would be best for my specific application.

    my drawings are being reviewed by the FMT (florida marine tanks) engineers now, so if things change, I’ll post updates.

    hopefully this helps out someone else who’s going through the same process.

    oh, by the way, here’s the quote i received from FMT- quite a bit more than what the same tank cost back in 2005 when others ordered theirs from the same place!!


      A tank with the provided specifications would be 83 gallons and weigh 70.5 lbs. The tank will be manufactured from .125 aluminum at a cost of $1411.00 each.

      Anticorrosive Macropoxy coating is an additional $200.00 per tank.(optional and not included in quote) added making total $1611.00

      • Tank is manufactured out of 5052-H32 Aluminum Alloy.
      • Terms are payment in full to issue drawings and initiate manufacture.
      • Lead-time: approximately 6-8 weeks after we receive full payment and drawing approval
      • Tanks are quoted FOB Henderson, NC.
      • Tanks are shipped freight collect unless a freight quote is requested.
      • This quote is based exclusively on the information contained on drawings. Revisions and/or variations from this information may invalidate this quote.
      • Tanks are quoted with pickup (NPTF fitting welded), fill, vent, and electric sending unit.
      • Please note additional clearance may be necessary for replacement tanks. This additional clearance is the responsibility the customer and should be provided to FMT at the time of approval of the drawing.
      • The manufacturing tolerance is 2x the material thickness.
      • We no longer stock or purchase Royce or Rochester Twin-Site senders (visual gauges).
      • To ensure the structural integrity and safety of our product, F.M.T. requires mounting information (via drawing, video, and/or written explanation). F.M.T. engineering will assist in advising acceptable mounting modes should you require it.
      • FMT recommends tank to have a fully supported bottom with ¼” neoprene rubber strips separating tank with support, and tank to be strapped or bracketed down.
      • Warranty: 1 year from date of shipment. Corrosion IS NOT covered under any warranty.
      • Tank is not designed for high performance use (application 55 MPH or greater)
      • Quote valid for 30 days.
      • A 10% cancelation fee will be assessed if order is canceled once drawings are released

      A credit card authorization form must be complete prior to the release of a drawing for approval.

      Please note: All credit card transactions are processed by our parent company, Patrick Industries in Elkhart, IN.

      Thank you for your inquiry.

      Alyssa Champion Bunton
      Customer Service
      120 Peter Gill Rd
      Henderson, NC 27537
      305-620-9030 x 2802

    1. fueltank.jpg

    2. 20190518_Fuel-Tank-Model_Mounting-Plate-Assembly.jpg

    3. 20190518_Fuel-Tank-Model_Fitting-Dimensions.jpg

    4. 20190518_Fuel-Tank-Model_Mounting-Plate-Dimensions.jpg

  • #225036

    Bryan Bywalec

    Can you describe your main vs auxiliary fills? I hate the location of our plan C’s fill and am thinking about reworking it. Wondering what you are doing with your two fills.

  • #225037

    Scott Brown

    Sure, I actually saw one post that mentioned that they had added dual fills so that they would not need to drag the fuel hose across the whole deck. seemed like a good idea, so I added a secondary fill fitting to the top (since FMT only quotes tanks based on volume and so far hasn’t indicated that it will cost any more to add more fittings). while I don’t have experience yet in our fill location being good or bad, I just wanted to plan ahead. I figure if I want to add a secondary fill location or relocate the existing one, that’s just a change to where the fill port on deck is located. as long as I could easily route the 1.5″ tubing up to the deck from the tank it doesn’t matter where the fill port is.

    adding the second port to the tank gives me the ability to change this later easily.
    does that answer your question?

  • #225042

    Scott Brown

    Just to update the thread- just got the final engineering drawing from FMT back for a replacement tank.

    in the end, their engineer Tommy Wrenn talked me out of my idea for mounting brackets for the following reasons:
    -they can only supply plates of a max 1/4″ thickness
    -at this thickness, it is most likely that the end of a bolt going through this would wear or potentially damage the main tank itself (i’m still not sure about this)
    -this would cost extra
    -based on the photos of the replacement of SV Dea Latis’s tank, there may not be as much space as I thought to mount the associated brackets.

    we also discussed other options and eventually decided against them:
    -an access hatch on top for cleaning (decided against it as the addition of more holes seems more likely to have water intrude in the long run than not in my opinion and it would cost an extra $100. also, with 2x 1.5″ ports available, we should be able to spray a chemical cleaner in & suck out debris from the other side)
    -an NPT fitting on the bottom for a sump drain (decided against as since the tank has a flat bottom it would still leave some residual if trying to drain out water or debris + the addition of more holes means more chances for a leak- one in the bottom of the tank could be disastrous)

    I’ll update the sketchup model eventually, but I’d still like to hear everyone’s thoughts.


    1. FMT-Engineering-Drawing.pdf

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