"I am helping a friend replace
"I am helping a friend replace his steel tanks in a 1976 36" Trojan. We are doing the 60 gallon tanks under the rear deck first. We have pumped the gas from the rear tanks to the front tanks outboard of his Chrysler 360's. We are using 58 gallon FRP tanks by Moeller as replacements.He chose the Moeller tanks because they are Ethanol proof and 1/3 the cost of aluminum tanks. He had also read about cheap aluminum tanks being rotted out by the Ethanol.Thick walled marine grade aluminum should hold up. He plans to pump the fuel back to the new tanks when we are done. He will not use the forward tanks until they get replaced. It looks like the engines or at least exhaust manifolds will have to come out to get them out of the boat. Since E-10 gas has a short life before degrading, he will just refill the rear tanks more often. He has no plans for long trips that would not put him past a fuel dock in time. We used an electric automotive fuel pump to transfer the fuel from tank to tank. He put a universal disposable fuel filter in the rubber fuel line to get some of the dirt/rust (the big chunks) out of the fuel. I will run the fuel through a Racor turbo 500 with 2 micron filters as we fill the new tanks.
There is some great information about fuel tanks at Joe Pascoe's marine survey web-site."
