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post #21 of Old 04-30-2013
Maine Sail
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Re: Fuel tank longevity

Just an update of "fuel tank longevity". This morning I pulled a .090 walled factory aluminum tank out of a Sabre 34 MKI that was manufactured in 8 of 1983. The tank was properly installed, kept dry and "isolated" from copper fuel fittings.

The owner was concerned due to the age of the tank and wanted it pulled and replaced. After getting it home and cleaning it up the tank looks about as good as the day it was installed. After a couple gallons of Acetone to clean the interior the tank looks like brand new inside and out. I can't find a single sign of corrosion anywhere and I was in there with my scope camera for about 30 minutes.. One of the threaded tank fittings was leaking so I R&R'd all of them and put fresh clean pipe dope on. I will install a new WEMA sending unit and re-install the tank for what may be another 30 years..

Properly installed aluminum tanks, even thin ones (.090), can last a loooooooong time..

-Maine Sail / CS-36T

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