Rajan Wilcox
Rust in a diesel fuel tank can cause serious damage to your vehicle's performance. It can clog filters, leading to a poorly running engine or even a breakdown. To clean a rusty diesel fuel tank, there are several methods you can use, such as the chain shake method, using muriatic acid, or simply shaking the tank with nuts, stones, or BBs inside. It is important to take safety precautions when cleaning a fuel tank to avoid accidents or injuries. Additionally, inspecting the tank for any remaining rust or leaks and ensuring it is completely dry before sealing it are crucial steps in the cleaning process.
Characteristics and Values Table for Cleaning Rusty Diesel Fuel Tank
| Characteristics | Values |
|---|---|
| Safety Gear | Cartridge-type charcoal respirator, gloves, and proper PPE |
| Cleaning Methods | Muriatic acid, chain shake, gravel/nuts/BBs, pressure washer, hammer |
| Sealing Methods | Red Kote, WD-40, soapy water, fuel stabilizers |
| Maintenance | Drain water, keep tank full, filter fuel |
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What You'll Learn
Use a 'shaker' like a tractor, ATV or pickup to shake the tank clean
One way to clean a rusty diesel fuel tank is to use a shaker like a tractor, ATV, or pickup to shake the tank clean. This method is particularly effective for small tanks, typically ranging from 5 to 10 gallons in size.
To employ this technique, start by loading the tank with a light chain, steel shot, or steel BBs, along with kerosene or diesel fuel. You can also add a quart of diesel fuel if you're using BBs. Securely fasten the tank to the back of your chosen shaker vehicle, ensuring it has a stiff suspension.
Once the tank is securely attached, take the vehicle for a drive for 2-3 days, allowing the motion of the vehicle to shake the tank vigorously. This action helps scrape away loose rust and dislodges debris. After shaking, drain the contents of the tank and repeat the process if necessary.
To enhance the cleaning process, consider using a fuel stabilizer and additive, such as Diesel Formula STA-BIL® Fuel Stabilizer & Additive, or a biocide. These additives can help prevent future rust and are especially useful when restoring an old tank.
Additionally, you can utilize a fuel storage tank cleaner and a sealant to further improve the results. The cleaner will help remove any remaining residue, while the sealant provides a protective layer to inhibit future rust formation.
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Try a pressure washer to blow out loose rust
Cleaning a diesel fuel tank of rust can be challenging, but it is important to do so as rust can cause fuel contamination, clogging filters and leading to poor engine performance or even breakdown. Before you start, ensure you have the right safety gear, including gloves and eye protection, and disconnect the battery to reduce the risk of sparks igniting fuel vapors.
One method to remove rust is to use a pressure washer to blow out loose rust. This method is suggested by some users online, who recommend flushing out the tank with a pressure washer and water hose until the water runs out clean. You can then double or triple treat with Howes and fill the tank up with diesel.
It is important to note that this method may not be suitable for all tanks, and some users suggest alternative methods such as using a "shaker" or the "chain shake" method. The "shaker" method involves loading the tank with light chain, steel shot, and kerosene/diesel, then strapping it securely to the back of a vehicle with stiff suspension and driving around for a few days. The "chain shake" method is similar but uses a chain instead of steel shot, and the tank is shaken vigorously by hand.
Another user suggests a more basic method of cleaning, which involves pumping the tank empty, rolling it around with some diesel to slosh it clean, and then turning it upside down to empty. A shop vac can then be used to vacuum out any remaining debris.
Whichever method you choose, it is important to take the necessary safety precautions and to thoroughly inspect the tank for any remaining rust or damage before sealing it up.
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Neutralise acid with baking soda and flush with warm water
Neutralising acid with baking soda and flushing with warm water is a method used to clean rusty diesel fuel tanks. This process involves first removing the fuel from the tank and disposing of it safely. If the tank has cracks or small holes, seal them using rubber or vinyl vacuum caps. Next, create a solution of baking soda and warm water, ensuring the water is not too hot as temperature is important. The recommended water-to-acid ratio varies depending on the acid used and the desired rust removal strength.
The baking soda solution is then poured into the tank, neutralising any remaining acid and preventing damage to the metal inside. The tank is then drained of the solution and rinsed with clean water. This process may need to be repeated several times to ensure all the acid has been removed. It is important to note that some acids, such as muriatic acid, can be difficult to stop from reacting with the metal, and may require an electrolytic bath to fully neutralise. Additionally, muriatic acid can cause staining, so it is important to act quickly if using this substance.
When neutralising acid with baking soda and flushing with warm water, it is important to wear appropriate protective equipment due to the stronger fumes produced by some acids. It is also crucial to follow safe acid disposal practices when disposing of the cleaning solution. This method of cleaning rusty diesel fuel tanks is effective, but it is important to choose the least aggressive method possible to avoid damage to the tank.
To speed up the process, you can use a stronger acid, such as phosphoric acid or muriatic acid, which can complete the derusting process in as little as 15 minutes. However, these stronger acids require extra caution and appropriate protective equipment. Additionally, it is important to inspect the tank for any holes or cracks before beginning the cleaning process, as some acids can create holes in the tank. Overall, neutralising acid with baking soda and flushing with warm water is a safe and effective method for cleaning rusty diesel fuel tanks when done carefully and with the appropriate precautions.
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Seal the tank with a product like Red-Kote
Sealing your tank with a product like Red-Kote is a safe and sure way to prevent and solve issues with rust. Red-Kote is an internal fuel tank liner designed to seal leaks and prevent further rusting. It is a special polymer coating that seals rust under the coating, so it cannot flake off and cause damage.
The product dries faster than many other sealers, and you can reduce the drying time even further by thinning with acetone and applying two thin coats instead of one thick coat. Red-Kote dries in approximately eight hours and is packaged in nine quarts per case.
Red-Kote is thicker than many other sealants and usually requires only one coat. It forms a tough, flexible membrane that will not crack or flake. It is resistant to methanol—even if the coating is bleached by methanol, it will remain tightly bonded to the metal. It is also resistant to a range of additives, including ethyl alcohol, methyl alcohol, toluene, methyl tertiary butyl ether, isopropyl alcohol, and tetraethyl lead.
The bright red colour of Red-Kote is easily visible, so you can be sure you haven't missed a spot. This is an advantage over some coatings, which are almost invisible.
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Use a hammer to loosen rust scale, then wash it out
Cleaning a rusty diesel fuel tank is a challenging task that requires careful preparation and the right tools. Before you begin, it's important to understand the safety hazards and take the necessary precautions. One effective method for removing rust from a diesel fuel tank is to use a hammer to loosen the rust scale, and then wash it out.
Step 1: Prepare the Tank
Before you start, make sure you have the necessary safety gear, such as gloves and eye protection. It is also recommended to work in a well-ventilated area to avoid inhaling any fumes. If possible, drain the tank of any remaining fuel and remove any attached hoses or components that might get in the way.
Step 2: Loosen the Rust with a Hammer
Using a hammer, gently tap on the steel tank to loosen the rust scale. Start with light taps and gradually increase the force if needed. Be careful not to strike the tank too hard, as this may cause further damage. Work your way around the tank, paying close attention to areas with heavy rust buildup.
Step 3: Wash Out the Tank
Once you have loosened the rust scale, it's time to wash it out. You can use a pressure washer or a garden hose with a spray nozzle to rinse away the loosened rust and debris. Insert the hose into the tank through the fuel filler opening or any other accessible openings. Make sure to wear protective gear during this step to avoid getting sprayed by rust particles and dirty water.
Step 4: Inspect and Neutralize
After washing, carefully inspect the tank for any remaining rust or damage. Use a flashlight to look inside the tank and check for pinholes or leaks. If you find any, you may need to consider patching or welding repairs. Neutralize any remaining acidic residue with a base such as baking soda, and then flush the tank with warm water to remove any residual chemicals.
Step 5: Dry and Seal the Tank
Ensure the tank is completely dry before proceeding to the sealing process. You can use compressed air or a hairdryer to speed up the drying process. Once the tank is dry, seal all openings and consider applying a tank coating or a fuel stabilizer to prevent future rust and corrosion.
Remember to always put your safety first and take your time during each step of the process.
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Frequently asked questions
There are several methods to clean a rusty diesel fuel tank. Here are some options:
- Use a pressure washer to blow out loose rust until the water is clear.
- Fill the tank with some 3/8" nuts, stones, or gravel and shake vigorously.
- Use muriatic acid to slosh around and tip the tank to remove rust. Neutralize the acid with baking soda and rinse with warm water.
- For small tanks, use BB pellets, diesel, and shake vigorously. Clean with soapy water, dry, and fix any remaining rust spots.
- Drain the tank, pump empty, roll it around with fuel, and turn it upside down to remove loose rust. Vacuum the inside with a shop vac wand.
It is important to take safety precautions when cleaning a diesel fuel tank. Wear gloves, a cartridge-type charcoal respirator, and other appropriate personal protective equipment (PPE). Additionally, ensure there is no oxygen in the tank before cutting or welding to avoid sparks or flames.
Some products that can be used to remove rust include muriatic acid, Evaporust, and Red-Kote. After using Evaporust, you can apply Red-Kote to the tank.
Rust forms in diesel fuel tanks due to accumulated moisture. This moisture can come from condensation or rain, and it leads to the formation of rust over time.
To prevent rust from forming in your diesel fuel tank, keep the tank full of fuel to control condensation. Regularly drain water from the bottom of the fuel tank to avoid rust buildup. Additionally, consider coating the tank with a spray like Linex truck bed coating to protect against rust.
