Cleaning Plastic Gas Tank ???

[urbanbeard]

I have a plastic main tank that has been siting for a while collecting dirt. I want to put it back on my bronco, but want to make sure I clean it out thoroughly. I know new tanks are not that expensive, but every bit saved helps to go towards something else. Any suggestions?

 

[BRONCROB]

Simple green or something similar should be all you really need.

 

[Rustytruck]

Remove the gas float unit and wash it out with cleaner. Then put in some fresh cleaner and a short piece of small link chain and slosh it all around with that. The chain will knock off any stuck stuff. Do not do this with a tank with gas fumes in it and make sure there is enough cleaner to submerge the whole chain. This is what we use to do to old metal tanks before we epoxy coated them before replacement tanks were available and alcohol was used in gasoline.

 

[nickgp]

You can use pea gravel also. It won't spark.

 

[71broncman]

I like Berrymans B12 for de-gunking the fuel system. If the tank has baffles just slosh back and forth.
Mark.

 

[red hot71]

If its plastic there's not going to be any rust inside, on my aux. front plastic tank I used lacquer thinner, after I removed the sending unit.

The only issue I had on my front tank was the vent line which had rotted out but it unscrewed and I was able to make a new one from a barb brass fitting and copper tubing.