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Old 04-16-2013, 09:47 AM
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Re-adding gasoline to an old tank

Any special precautions to watch out for before I add gasoline to the tank prior to engine/cam break in? Water, rust, gunk?

There was about a half tank of gasoline in the tank for a decade or so. The engine is rebuilt and ready to break in now. I used a manual pump and sucked all the gas that would come out through the hard fuel line that goes to the fuel pump. I am sure there is still liquid at the bottom of the tank though. Should I add SeaFoam or some other additive to offset any water in there? Its a hydraulic cam, so I do want this thing to fire up and run right away for break in.

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Old 04-16-2013, 11:27 AM
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Get the tank steamed...any rad shop should be able to help you out with that. Whatever they charge, it's cheap insurance when you consider the cost of an engine. Seeing the tank has been sitting for a while, get them to pressure test it as well. Don't need any of that $5 a gallon fuel leak out of a clean but porous tank

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Old 04-16-2013, 01:07 PM
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Old gas

I would also make sure to either replace the fuel line or make sure it is cleaned out of old gas/gunk. With cleaning the tank and line out you will know for sure your not going to suk anything into the carb. If it gets that far.
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Old 04-16-2013, 01:23 PM
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Gas sitting around that long can leave an awful lot of gunk in the bottom of your tank. Today's gas with ethanol will dissolve a lot of that, and it will clog your fuel filter if you're lucky, or end up in your carb if you're not.
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