GB49 Classic Fuel Tank Replacement

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GB49 Classic Fuel Tank Replacement

Postby lpthompson14 » Tue Mar 20, 2018 3:09 pm

After reading other posts I have replaced my leaking stb fuel tank & will replace my port tank this fall.

You may view pictures of the process by copying & opening this link:

https://drive.google.com/open?id=1EajAZf-2SAZwsS3PL5Ykqu6lnx8xwmN2

I highly recommend spending the time to prepare & protect your engine room & getting the best saws & blades as well as protective equipment. We used a very good Makita ( JR3070CT/Z ) anti vibration reciprocating saw & a Metal Devil circular saw: http://www.mkmorse.com/circular, this saw ripped thru the steel easily where it physically fit.

I built a false deck across the stringers between the engines with 2x6 boards & framed a box around the top, inboard & aft end of the stb engine. We then tented the entire stb side of the engine room in heavy plastic as well as 2 layers over the stb engine as well. It looked like an operating room but it made clean up much easier.

I ordered 2 smaller aluminum tanks (@ 180 gal each) to replace the original steel 500 gal tank. Florida Marine Tanks built both & they made the bottom tank with heavier walls to support the upper tank sitting on it.

Actual cutting time was @ 15 hours to cut into manageable pieces & about the same to install new tanks & plumb them.

Please feel free to contact me if you have any questions.

Lloyd Thompson
CINSUBAR II GB49 #36
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Re: GB49 Classic Fuel Tank Replacement

Postby fishing fool » Wed Jul 25, 2018 3:39 pm

Thanks for this info!!
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Re: GB49 Classic Fuel Tank Replacement

Postby StevenD » Thu Jul 26, 2018 9:20 am

If I may, cost of the tanks? Also the thickness of metal of each? I'm looking at the same project soon on my new to me 1992 46". Did you cut them out yourself?

Thanks
Steve D
Kumatage GB 46 #121
Hobe Sound, Fl.
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Re: GB49 Classic Fuel Tank Replacement

Postby Orangevale45 » Mon Aug 06, 2018 12:58 pm

Steve, I have a 1986 GB42 Classic. I had the old leaky tanks cut out and new aluminum tanks installed (two on each side) two years ago. I’m in the San Francisco Bay Area. A reputable company from Southern California did the work. All I did was write a check. The total bill was just shy of $19k.
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Re: GB49 Classic Fuel Tank Replacement

Postby StevenD » Sun Aug 12, 2018 8:21 am

That seems reasonable. Thanks for that!
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