Portable Fuel Tank Cleaning

jay_merrill

Vice Admiral
Joined
Dec 5, 2007
Messages
5,653
I have a couple of 12 gallon, plastic fuel tanks, which I use as aux tanks. I haven't used them for awhile, but need to do so, over the next few weeks. Just to be on the safe side, I removed the cap and and peered inside. While doing this, I discovered lots of "globs" of what appears to be gooey 2 stroke oil. It is very sticky and is about the color of brown mustard.

I dumped the remaining fuel (not much) into an old gas can, for later disposal. Once completely devoid of fuel, I flushed the tanks with a hose at high pressure. I expected this to clear the remaining "globs," it didn't work completely.

In searching a few old threads here, I saw some comments about using cheap carburetor cleaner, to break the junk up. Has anyone done this lately? Does it work?

Also, if I can't get it all out, what are the opinions about how much of a problem a few globs of this stuff will make. I use a filter/water separator, as well as an inline wire mesh filter, which is mounted between my fuel pump and carbs.

What say you, outboard tinkerers of iboats?



???
 

rosser1

Petty Officer 1st Class
Joined
Apr 5, 2009
Messages
360
Re: Portable Fuel Tank Cleaning

if high pressure water don't get it try a little gas, slosh it around and pour it in a container. If not trash come out with it reuse it. Gas is a great cleaner and good carb clogger too...
 

ENSIGN

Lieutenant Junior Grade
Joined
Jun 21, 2009
Messages
1,179
Re: Portable Fuel Tank Cleaning

Berkabil 2+2 carb cleaner if this won't disolve the stuff throw the tanks away
 
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