How best to clean rust from your gas tank?

classic Classic list List threaded Threaded
11 messages Options
Reply | Threaded
Open this post in threaded view
|

How best to clean rust from your gas tank?

semcintyre
Okay, so I've read and watched quite a few videos on cleaning out rust from your gas tank, and there are a number of opinions..... vinegar vs muriatic acid, how to prevent flash rust (my biggest concern), coating.

What have you all done, and what products/procedures do you recommend??

For me personally, my tank isn't that bad. Scale 1-10, maybe a 3. Although it needs cleaned.
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

TOOLS1
Administrator
Go to the hardware store and get a bottle of "Krudcutter" A little of this and your tank will look like new. Just be sure to remove the petcock before using it, it will eat aluminum. After flushing it out and drying the tank (I use a heat gun in the filler hole) just coat it with some oil.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

semcintyre
Thanks!! Why do you prefer Krudcutter over muriatic acid or vinegar? Will you not get flash rust with just a heat gun? Will the oil be enough to stop future rust or will it gum the carbs up?
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

TOOLS1
Administrator
The Krudcutter is phosphoric acid, the same thing that is used for prepping bare metal before priming in body/paint shops. It is not as hard on the metal as muriatic acid. The heat gun will dry out the tank, and a coating of oil will keep it from rusting.
TOOLS  
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

semcintyre
Okay, I heard that phosphuric acid doesn't create flash rust like muriatic acid. That's my biggest concern, along with rust reforming.

Thanks again for your input. It's been a huge help. I'll give that a shot.


Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

semcintyre
In reply to this post by TOOLS1
What do you use for oil, and how much? Will that not cause any issues with the carbs?
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

semcintyre
In reply to this post by TOOLS1
How much Krudcutter would I use and what kind (there are several, the de-greaser I assume)? Is it diluted with water? How long should it sit 24hrs?

After it sits, rinse good with water, heat gun quickly after, and then the oil (curious that process). Sounds easy enough.

Sorry for all the questions, just want to get it right.

Shawn
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

TOOLS1
Administrator
Just the standard Krudcutter, not the degreaser. Just put a cup of it in the tank, swish it around, rinse with cold water (several times), put heat gun into filler hole, let run until inside is dry, pour in and motor oil, rotate tank to coat inside, drain out excess. The oil will not hurt anything in any way, unless you spill it on the ground.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

semcintyre
I Googled KrudKutter, and there are a ton of different kinds, the only one that looked like the standard, was "Krud Kutter Orginal Concentrated Cleaner/Degreaser and Stain Remover". Although, I did see a rust remover version.
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

TOOLS1
Administrator
Rust remover.
TOOLS
Life is not about the number of breaths, you take, but the moments that take your breath away.
I don't have an anger problem. I have an idiot problem. Hank Hill
Never confuse education for intelligence.
Happiness is a belt fed weapon.
I just can't imagine what could go wrong.
No fire? No explosions? So whats the point of your story?
Those who are too smart to engage in politics are punished by being governed by those who are dumber. ~Plato
It couldn't be done, but the darn fool didn't know it, and did it anyway.
We all got problems. Ksharp
I like vintage bikes because they take me away from the clutter of technology that I work with everyday and back to a simpler time of mechanical elegance and simplicity.. "ninadm"
Darkwing Duck: The worst part of public transportation is the Public.
"That is awesome shit there" Re-Run
"Fear nothing, attack everything" Eric Berry
" Oh, you read that on the internet? Clearly it IS a massive problem. Of course it CAN’t be normal operation."

1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
South of Eden (Kansas City MO)
Reply | Threaded
Open this post in threaded view
|

Re: How best to clean rust from your gas tank?

semcintyre
Awesome! Thanks!

Have a great weekend! Not sure how it is in KC this weekend, but nice here in IL.

What are you riding currently? Pic?