Plan for cleaning & lining tank…what do U think?

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Clubless
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1948 Farmall Cub
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Plan for cleaning & lining tank…what do U think?

Postby Clubless » Fri Jul 22, 2016 1:12 am

Below is my plan of attack:

Fill tank with mixture of water and Dawn dishwasher and let soak (any thoughts on how much Dawn per gallon of water?)

Pressure wash inside

Plug bottom of tank. Seal gas cap with layers of alumina foil after pouring in acid and water solution

Fill tank with mixture muriatic acid and water and soak for 24 hours. (1 cup per gallon of tank capacity of 7 ½ gallons) I did read one post on this subject that used 1:1 ratio of acid to water, but concerned that might be too strong (Thoughts on this much appreciated)

Pressure wash again

Neutralize muriatic acid with baking soda & water (not sure how much baking soda to water) Question, let dry or add acetone immediately after draining out baking soda solution?

Pour in some acetone and slosh around to dry tank and prevent flash rust. Let dry (not sure how much acetone to use)

Pour in quart of Red-Kote and rotate tank around to coat entire inside of tank

Drain out excess Red-Kote

Let sun dry for several days or until smell of Red-Kote is no longer present

I do not want to use bolts, screws or chains as I have no way to agitate or tumble the tank and do not want to fish everything out of tank.

A couple of questions:

When I drain out the Red-Kote out of tank, do you drain out of the bottom of tank or from the filler neck?

Do I need to remove the remaining sediment bowl assembly piece shown in picture or place thread cap on it?

I would appreciate any advice or comments on my plan, especially any safety precautions. I do plan to wear automotive paint mask, neoprene gloves, eye protection and long sleeve shirt and jeans.

I have the tank sitting on a couple of sawhorses out in the edge of my yard.

Thanks,
Gary
Pilot Mtn. NC
Attachments
Tank plug.jpg
sawhorse.jpg

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Re: Plan for cleaning & lining tank…what do U think?

Postby staninlowerAL » Fri Jul 22, 2016 5:15 am

Not sure about the outlet fittings in your picture but the acid solution will attack the metal of the OEM shutoff valve. I suggest a brass plug screwed directly into the tank, which I believe is 3/8 pipe thread.

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tmays
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Re: Plan for cleaning & lining tank…what do U think?

Postby tmays » Fri Jul 22, 2016 6:22 am

how much crud and rust do you have in tank? If a lot, then you'll need to remove it physically. Acid you have will most likely not remove it. Then ditto to what Ed suggests
Last edited by tmays on Sun Jul 24, 2016 7:56 am, edited 3 times in total.
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Re: Plan for cleaning & lining tank…what do U think?

Postby ScottyD'sdad » Fri Jul 22, 2016 7:09 am

Follow the instructions on the RedKote can. You don't want the coating to fail, creating a worse mess.
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Re: Plan for cleaning & lining tank…what do U think?

Postby Cub driver » Fri Jul 22, 2016 9:27 am

I bought the kit made by Northern. It came with a degreaser, a drying agent (a quart of acetone) and the liner. The instructions said pour in the degreaser, roll it around in the tank, pour it out, rinse thoroughly with clear water. Then, let the tank dry thoroughly (at least 24 hours) I waited about 5 days. Then pour in 1/2 the acetone and roll that around, then pour it out and pour in the other 1/2 roll that around then your ready to coat. This is where I took the air blower and let it blow in the tank a few minutes. Then, poured in the quart of liner, rolled the tank all around to coat everywhere in the tank, then let it run out the filler neck, then turned the tank upright and let the liner cure for the instructions said 24 hours but I let it set 1 week before putting any fuel in. I did have an old sediment bowl I used in the outlet during the process.
So far so good.

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Re: Plan for cleaning & lining tank…what do U think?

Postby Eugene » Fri Jul 22, 2016 9:47 am

I have used a short length of small diameter chain with a length of small rope tied to the chain to clean up rust and scale. Dropped the chain in the fuel tank, kept most of the rope out. Agitated, then pulled out the chain with the rope.

In winter I used a shop vacuum on exhaust, blowing into the fuel tank to dry the water and again to dry the coating.
I have an excuse. CRS.

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Re: Plan for cleaning & lining tank…what do U think?

Postby Denny Clayton » Fri Jul 22, 2016 10:40 am

I would forget the pressure washer. With the baffles in the tank you will only cover a portion of the tank. The acid solution will take care of it.
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Clubless
Posts: 45
Joined: Wed Nov 04, 2015 5:43 pm
Zip Code: 27041
Tractors Owned: 1950 Farmall Cub
1948 Farmall Cub
Location: NC, Pilot Mountain

Re: Plan for cleaning & lining tank…what do U think?

Postby Clubless » Mon Jul 25, 2016 10:36 pm

I decided to punt the idea of cleaning and Red-Koting my tank. I am too concerned that I would create a bigger mess in the tank if I screwed up doing it myself. I found another radiator shop to clean and reline for $125, so I took the tank to them today.

Thanks to everyone who provided me great feedback on my plan.

Gary
Pilot Mtn. NC

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Re: Plan for cleaning & lining tank…what do U think?

Postby Ken (48 Cub) » Tue Jul 26, 2016 10:40 am

FYI - I bought the complete kit from POR-15 and was very pleased with the outcome. A little under $100.
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Re: Plan for cleaning & lining tank…what do U think?

Postby Eugene » Tue Jul 26, 2016 10:51 am

To late now. The task of cleaning and lining the fuel tank is not complicated or labor intensive. And will save you some or quite a bit of money if you did it yourself.

You will have enough liner remaining to also line small gas tanks such as on a garden tractor.

Doing it yourself will take a couple hours of your time and depending on weather or method of drying the tank and liner, several days.

I have used RedKote on 3 large gas tanks and when finished, saved and used the left over for several small engine gas tanks.
I have an excuse. CRS.


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