Katerina Swanson
If you're dealing with clogged fuel lines, there are a few different products you can use to clean them out. One option is to use a chemical cleaner such as brake clean, E85, carb cleaner, or acetone. These products can dissolve fuel-related varnish and contaminants in the fuel lines. Alternatively, some people have had success using compressed air to blow out the fuel lines. For more manual labour, you can use a liner from a mig welder as a snake to rod out the blockage. In some cases, a paint remover or methyl hydrate can also do the trick.
Characteristics and Values
| Characteristics | Values |
|---|---|
| Products | Brake clean, compressed air, E85, methyl hydrate, Biobor JF, spray B12, tye wire, mig welder, zip strip paint remover, acetone |
| Other methods | Force gasoline through the lines, blow out with compressed air, pressure test |
| Notes | Brake clean may not be effective against thick, green, tar-like, slimy sludge caused by diesel bacteria |
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What You'll Learn
Using compressed air to clean fuel lines
Using compressed air to clean out fuel lines is a method that some car and tractor owners use. However, it is important to exercise caution when doing so, as blowing compressed air through the lines can potentially damage the pump if debris is blown back into it.
Before using compressed air, it is recommended to disconnect the fuel lines from the engine and pump, as well as to replace the rubber lines with a fuel injection hose. It is also important to ensure that the compressed air being used is clean and free of contaminants. One way to achieve this is by using an inline filter system from a paint setup.
When blowing air through the lines, it is crucial to avoid blowing debris back into the pump or into the tank, as this can cause further issues. One way to avoid this is by disconnecting the soft lines at the chassis side and attaching a short piece of hose to direct the airflow onto the ground or into a bucket. Additionally, it is recommended to replace the fuel filter a few times after driving the vehicle to ensure that any remaining debris is removed.
While using compressed air can be effective in clearing out fuel lines, it is not always the best solution. In some cases, a bad batch of gas with water in it can be absorbed by ethanol, rendering this method unnecessary. Therefore, it is important to research the issue thoroughly and consider seeking professional advice before attempting any repairs or cleaning methods.
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Removing rubber portions of the lines
There are several products that can be used to clean out clogged fuel lines, especially if they have been sitting for a long time. For diesel engines, it is important to address the issue of bacteria or "diesel bug" that can cause a thick, green, tar-like substance to build up in the fuel system. One user recommends brake clean, E85, or a combination of both, left to soak overnight. Another user suggests methyl hydrate as a solution. Once clean, fresh diesel with a dose of 'Biobor JF' can be run through the system to kill any remaining bacteria.
For varnish removal in rubber fuel lines, acetone is recommended by several users. This can be done by reducing the fuel in the tank, removing the tank, and then rinsing it with acetone. This can be followed by running the engine with clean gas. A small amount of acetone can also be added to the gas tank, along with a product like Marvel Mystery Oil. Carb cleaner can also be used to flush the system, but it is important to first dissolve any varnish to avoid plugging the fuel lines.
Now, onto the topic of removing rubber portions of the fuel lines. While there are products to clean rubber fuel lines, it is not recommended to reuse old rubber fuel lines due to their age and potential for cracking. Instead, it is generally advised to replace them with new ones. If you do need to cut the rubber fuel lines, it is recommended to use a very sharp pair of diagonal cutters or a razor knife.
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Using acetone to clean fuel lines
There are several products that can be used to clean out clogged fuel lines, including brake clean, E85, and methyl hydrate. However, one product that has been known to be effective in cleaning fuel tanks is acetone.
Acetone is a powerful solvent that can dissolve many substances, including glue-like substances that may have built up in fuel lines over time. It has a pH of 7, which means there are no worries about toxicity from mixing acids and bases. Acetone is also a common ingredient in some carb cleaners and TB cleaners, which are designed to be used in fuel systems.
To use acetone to clean fuel lines, follow these steps:
- With the engine running, spray acetone generously into the opening of the throttle body.
- Allow the acetone to dissolve any built-up substances in the fuel lines.
- Once the fuel lines are clear, you can either leave the cap off and let the acetone evaporate or slosh it out and dispose of it to prevent fuel remnants from re-solidifying.
- If you want to speed up the evaporation process, you can try moving warm air through the tank, such as with a hairdryer and funnel.
It is important to follow the directions on the acetone product you are using and to take the necessary safety precautions. Acetone is a strong solvent, so it is essential to use it carefully and in a well-ventilated area. Additionally, as acetone can dissolve cheap plastics, it is crucial to ensure that your fuel system is made of compatible materials, such as rubber hoses, metal lines, and high-grade plastics.
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Using E85 to clean fuel lines
Ethanol itself is not corrosive, but when mixed with water, it can cause corrosion. This can be minimised by keeping the fuel tank full when the vehicle is stored. Additionally, vehicles produced before 1994 may not be compatible with ethanol-based fuel, as the stock parts were not always "immune" to ethanol. As such, it is important to check the compatibility of your vehicle before using E85.
One way to test the ethanol-gasoline ratio in E85 is by using inexpensive testers available in the market. These testers involve adding a specific amount of water to a tube and filling the rest with the E85 fuel sample. The water will separate the gasoline, and the percentage can be read on the tube. More precise tools, such as hand-held electronic devices and OE sensors, are also available for more accurate readings.
Some people choose to run 1-2 tanks of E85 through their engines to clean the fuel lines instead of using a fuel injector cleaner. This method can be effective in ensuring the engine remains clean. However, it is important to note that E85 may not be suitable for all vehicles, especially older ones with fuel systems that are not resistant to ethanol.
In conclusion, while E85 can be used to clean fuel lines, it is crucial to consider the age and compatibility of your vehicle's fuel system before doing so. For older vehicles, alternative cleaning methods or products may be more suitable.
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Using paint stripper to clean fuel lines
There are various products that can be used to clean out clogged fuel lines, such as brake clean, E85, and Biobor JF. However, one must be cautious of the bacteria that can live and propagate in low-sulphur diesel, especially biodiesel, which can gum up a fuel system.
Now, let's discuss the use of paint stripper to clean fuel lines in detail:
To clean fuel lines with paint stripper, you can follow a process similar to cleaning a fuel tank. Start by mixing the paint stripper with fresh gasoline in a safe container. The mixture ratio will depend on the specific paint stripper you are using, so refer to the manufacturer's instructions. Do not use bare hands to mix these chemicals; always wear gloves.
Next, reverse the primer ball and use it to pump the mixture backward through the fuel lines. Allow the mixture to sit in the lines for a few hours or overnight. Afterward, pump the mixture back out and dispose of it properly. Repeat this process until the fuel lines are clean. Finally, flush the fuel lines with fresh gasoline or recommended solvent to remove any residual paint stripper.
It is important to note that paint stripper can damage certain components of your fuel system, such as gaskets. Therefore, it is recommended to consult a professional or a mechanic before attempting this process. Additionally, always prioritize safety and follow local guidelines for handling and disposing of hazardous chemicals.
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Frequently asked questions
There are several methods to clean out clogged fuel lines. Some people recommend using brake clean, compressed air, and/or E85. Others suggest using a paint remover like Zip Strip, or forcing gasoline through the lines.
To clean diesel fuel lines, you can use products like methyl hydrate, Biobor JF, or acetone.
Clogged fuel lines can be caused by bacteria, especially in low-sulphur diesel or biodiesel. This can result in a thick, green, tar-like, slimy sludge that is difficult to clean.
Yes, some people suggest using a liner from a mig welder as a snake to rod out the hard stuff. Others recommend using spray B12 and a piece of tye wire to flush the lines.
