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  • bladder tank questions

    So I just recently pulled my 1989 201 after discovering there is a fuel leak somewhere in the system. I'm not sure if it's a leak in the tank or in the supply line, I replaced the fuel line to the engine about 4 years ago when i purchased the boat. Anyway, my question is, if it does turn out that the leak is in the tank has anyone had any experience with installing bladder tanks, http://atlinc.com/marine.html is the company I'm looking at. Also, does anyone have the internal dimensions of the original fuel tank or a place to look so I can send it to them for a quote? Any assistance would be much appreciated.

  • #2
    good chance your tank is shot... makos of that vintage have a lot of foam and not a lot of drainage which results in pitting of the tank. Even if it's not bad yet, if you plan to keep the boat a new tank is a good investment because it's probably only a matter of time.

    I assume you're talking about replacing the original tank and not just putting a bladder on deck? No experience with the bladders, and never seen anybody retrofit one. Seems like a pretty specialized product for racing/other extreme performance applications. Don't know that you would need or want it on a recreational boat, but maybe if it was
    I think you'll find most guys on here go with aluminum, and probably a majority from Sunshine Marine Tanks (myself included) unless they have a local manufacturer. They have a pretty stellar reputation for quality, easy to work with, and very competitive pricing. Just to give you an idea I ordered a custom 111 gal tank w/ epoxy coating and mounting tabs, came to about $1000 plus shipping (about $100 for crate, $100 from Miami to Virginia). Pricing is basically by the gallon, so if you figure $8-10/gal you'll be in the ballpark.

    I'm sure somebody here should be able to get you the OEM tank dimensions for your boat, but you might also try calling Sunshine - they have a huge database of past tanks and I'd be willing to bet they have dimensions on file for your Mako.

    good luck, lots of knowledge here so keep asking questions!

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    • #3
      The original tank will have baffles in it, so you'd have to cut the top off the tank and remove them.

      I'd just plan on a replacement aluminum tank personally.

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