Rusty tan
More Turbo
Joined: Feb 2001
Posts: 524
Likes: 77
Usually it’s gonna take some kind of acid inside the tank to dissolve the rust and flush it out. Not an impossible job.
youtube has a few how-tos on the subject.
Or you can probably hire it out for alot of $$$.
I used cheap vinegar on my motorcycle tank. You could probably do the same using 4-5 gallons of white vinegar or “cleaning” vinegar. (It’s got to be repeated 3 or 4 times so save the poured-out vinegar, strain it and repeat).
youtube has a few how-tos on the subject.
Or you can probably hire it out for alot of $$$.
I used cheap vinegar on my motorcycle tank. You could probably do the same using 4-5 gallons of white vinegar or “cleaning” vinegar. (It’s got to be repeated 3 or 4 times so save the poured-out vinegar, strain it and repeat).
Hotshot
Joined: Oct 2009
Posts: 16,148
Likes: 4,747
From: Burbank, WA
Welcome to the forum. Rusty gas tanks are a common problem in our trucks all across the years. You can try to clean it and de-rust it, (keep in mind your contaminated chemicals become hazardous waste after you're done sloshing them around in your tank, how will you dispose of them properly?) but in most cases the efforts are futile. If you're constantly having to clean filters or rebuild carbs because they have junk in them, it's frustrating at the very least, and can be down right inconvenient or worse if your truck leaves you stranded. New tanks are available and not overly expensive in the big picture, especially compared to the hassle with chasing fuel delivery issues or a tow bill. Don't forget the fuel line from the tank to the carb will likely look just like the tank and should be changed, too.
Gas Tank - In Cab - 19.5 Gal w/o EEC - 61-72 F100 F250 Gas Tanks | AMD 890-4561
Gas Tank - In Cab - 19.5 Gal w/o EEC - 61-72 F100 F250 Gas Tanks | AMD 890-4561
FTE Legend
Joined: Nov 2015
Posts: 30,856
Likes: 4,106
From: Angier, NC
Welcome to the forum. Rusty gas tanks are a common problem in our trucks all across the years. You can try to clean it and de-rust it, (keep in mind your contaminated chemicals become hazardous waste after you're done sloshing them around in your tank, how will you dispose of them properly?) but in most cases the efforts are futile. If you're constantly having to clean filters or rebuild carbs because they have junk in them, it's frustrating at the very least, and can be down right inconvenient or worse if your truck leaves you stranded. New tanks are available and not overly expensive in the big picture, especially compared to the hassle with chasing fuel delivery issues or a tow bill. Don't forget the fuel line from the tank to the carb will likely look just like the tank and should be changed, too.
Gas Tank - In Cab - 19.5 Gal w/o EEC - 61-72 F100 F250 Gas Tanks | AMD 890-4561
Gas Tank - In Cab - 19.5 Gal w/o EEC - 61-72 F100 F250 Gas Tanks | AMD 890-4561
And if you look into a tank to the floor of the tank and it looks good it still could be rusty on the top.
I will not tell you how I know this
Go with new tank(s)
Dave ----
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