Regan Brown
Removing a fuel tank from a car can be a tricky and time-consuming process. While there are no clear instructions for removing a fuel tank from a Nissan car, forum users have shared their experiences and advice. One user recommends checking the internal condition of the tank and the amount of fuel left before attempting to remove it. Another user suggests draining the tank first, either by using a pump or siphon setup or by removing the tank and draining it. If the tank is full of crud, it must be removed and cleaned to avoid destroying the fuel pump.
How to remove fuel tank: Nissan Dealers
| Characteristics | Values |
|---|---|
| Option 1 | Use a pump or a siphon setup to remove fuel from the tank |
| Option 2 | Remove the tank and drain it out |
| Option 3 | Put some water remover in the tank and drive in 3rd gear to burn up old fuel |
| Option 4 | Add some octane booster to help with car pinging |
| Option 5 | Clean the tank, sand any chipping paint and rust, and spray with paint or undercoating to prevent rust |
| Option 6 | Jump the pump on 12 volts and let the pump remove the fuel |
| Option 7 | Attach a longer hose to the fuel return line and idle the bad gas away |
| Option 8 | Attach a 3/8" fuel line and run it to a gas can, then put fresh fuel in to mix with old gas |
| Option 9 | Stick a hose down the gas filler and hold the end higher than the tank while sucking the fuel up the tube |
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What You'll Learn
Draining the tank with a pump or siphon
Draining a fuel tank with a pump or siphon is a common practice. A siphon is a device that uses a tube to move liquid upwards from a reservoir and then down to a lower level. The liquid is forced into the tube, typically by suction or immersion, and the flow continues unaided. This method can be used to drain the fuel tank of a car.
- Obtain a siphon tube: Any length of vinyl tubing or hose will work.
- Submerge one end of the tube into the fuel tank and the other end into a bucket or container.
- Create suction: This can be done by mouth or by using a hand pump or rubber bulb. Suck on one end of the tube until the fuel is drawn into the tube and reaches your mouth or the pump.
- Close the tube: Use your thumb or finger to close the end of the tube that is in your mouth or the pump.
- Place the closed end of the tube into a bucket or container: Ensure that the bucket is placed lower than the fuel tank.
- Release your thumb: Fuel will begin to siphon out of the tank and into the bucket.
- Monitor the fuel level: Keep an eye on the fuel level in the tank and stop the siphon when the desired level is reached.
- End the siphon: To break the siphon, simply pull the higher end of the tube out of the fuel.
It is important to note that when creating suction by mouth, one must be careful not to suck in fuel. Additionally, always ensure that the area is well-ventilated and all necessary safety precautions are taken when working with fuel.
A pump can also be used to drain the fuel tank. A pump system provides upward flow by injecting energy into the liquid, allowing it to move against gravity. The pressure level and flow rate must be considered when using a pump.
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Removing the tank to drain it
Removing the fuel tank to drain it is a challenging task and should be done with caution. Before removing the tank, it is important to assess the internal condition of the tank, the amount of fuel left, and the difficulty of removing the fuel.
If the tank is relatively clean and does not contain a significant amount of fuel, it may be easier to simply remove the gas using a pump or siphon setup. A simple hand siphon can be purchased cheaply from a hardware store, or a vacuum pump can be used to create a siphoning effect. By inserting a long, clear plastic tube through the fuel filler, you can reach the bottom of the tank and begin the siphoning process. It is important to keep the tube from curling up at the bottom of the tank so that the fuel can flow smoothly.
However, if the tank is full of crud or has a significant amount of fuel remaining, removing and draining the tank may be necessary. This is a more complex process and may require mechanical expertise. It is important to follow safety protocols and have the necessary tools and equipment to avoid any potential hazards.
Once the tank is removed, it can be cleaned and inspected for any issues. It is recommended to sand off any chipping paint and rust, and then spray it with paint or undercoating to prevent further rusting. This process ensures that the fuel tank is restored to a functional and safe condition.
Additionally, when dealing with fuel, it is important to prioritize safety and take the necessary precautions. Working in a well-ventilated area and wearing appropriate protective gear, such as gloves and eye protection, are crucial steps to ensure your well-being during the process.
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Cleaning the tank
Cleaning a fuel tank can be a challenging task, but with the right tools and precautions, it can be done effectively and safely. Here is a step-by-step guide to help you through the process:
Prepare the Work Area:
Ensure your work area is well-ventilated by opening doors and windows and setting up a fan if needed. This step is crucial as fuel fumes can be hazardous to your health. Have a fire extinguisher nearby as a safety precaution. Make sure there are no sources of flame or sparks in the area to avoid any accidents. Put on safety gear, including a face mask to protect yourself from fumes and eye protection to shield your eyes from any debris or chemicals.
Disconnect and Remove the Fuel Tank:
Before cleaning, you must disconnect and remove the fuel tank from the vehicle. Unstrap the tank and unscrew any screws or bolts securing it in place. If you're working on a lawnmower or similar equipment, you'll also need to remove the fuel line and spark plugs. When disconnecting the fuel line, be sure to seal it afterward to prevent any residual gasoline from leaking out and causing issues. Place a smooth-faced clamp near the carburetor, then separate the line and carburetor, draining the remaining fuel into a bucket.
Drain the Fuel Tank:
Completely drain the fuel tank by pouring the fuel into a gasoline-safe container. If there is any fuel left, use a suction hose or a similar device to remove it. Turn the tank upside down if necessary to ensure all the fuel, sludge, and debris are removed. Allow the tank to dry completely before proceeding to the next step.
Clean the Fuel Tank:
There are a few methods you can use to clean the fuel tank. One approach is to use high-pressure water. Set your hose and sprayer to a high-pressure setting and spray water into the tank to break down any buildup or accumulation. This method avoids the use of chemicals that could harm your engine. Alternatively, you can use a pressure washer or blaster if there is substantial rust buildup. If you're working on a motorcycle and cannot remove the tank, you can use fuel system cleaners like Berryman B-12 Chemtool Fuel System Cleaner and Carburetor, Choke & Throttle Body Cleaner. Spray these products into the tank to address the bottom and sides, ensuring a thorough clean.
Reinstall the Fuel Tank:
Once the tank is clean and dry, you can reinstall it by securing it with the screws and straps you previously removed. Be sure to refer to your vehicle's specific instructions for reinstallation. Remember to use fresh fuel with the new fuel pump to prevent contaminations from entering the clean tank.
Always refer to your vehicle's service manual for additional instructions and safety precautions specific to your make and model.
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Using tank putty to fix leaks
Tank putty can be used to fix leaks in fuel tanks. A fuel tank patch kit is available that contains two types of putty and other repair items. Plumber's putty, for example, is a common sealant used in plumbing to create watertight seals for faucets and sink drains. It is a pliable, clay-like substance that needs to be kneaded and rolled for installation. It is easily removable and can be used for temporary fixes.
To use tank putty to fix leaks, the first step is to clean the surface of the tank. This is to ensure that there is no debris or previously applied putty that could interfere with the new putty's adhesion. Warm your hands by rubbing them together, then take a chunk of putty and roll it between your palms to soften it. Push the putty into the cavity with the palm of your hand so that it "mushrooms" and adheres better.
Tank putties are available in different types, so it is important to select the correct one for your specific application. For example, EVO-STIK 50g Plumbers Mait Quick Leak Repair Putty is a strong, waterproof, fast-setting copper-coloured epoxy putty that can be used for instant repairs to pipes, tanks, and cylinders. It is simple to use and easy to mix, and it dries quickly.
While tank putty can be a quick and effective solution for repairing leaks, it may not work for all types of leaks or in all areas. For example, it should not be used on exposed areas that require a watertight seal, as it does not "stick" two surfaces together but rather creates a tight seal between them. In some cases, the putty may not adhere properly and may need to be reapplied or supplemented with other repair methods, such as leak-fixing tape.
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Buying a new tank
If you are considering buying a new fuel tank for your Nissan, there are a few things to keep in mind. Firstly, it is important to replace a damaged fuel tank promptly to maintain your engine's integrity and keep your vehicle in good condition. When buying a new fuel tank, you have several options, including purchasing from a Nissan dealer, an online retailer, or a junkyard.
Dealer Purchase:
Buying a new fuel tank directly from an authorised Nissan dealer is a convenient option. While dealer prices may vary, you can expect to pay around $357 for a new fuel tank, according to a forum post. Keep in mind that dealer prices may not include installation costs, taxes, or other associated fees.
Online Retailers:
You can also find a wide range of Nissan fuel tanks online from retailers like CarParts.com and eBay. These platforms offer various options, including new, used, and remanufactured fuel tanks. Prices can vary significantly, ranging from under $75 to over $150 on eBay, and starting at $111 on CarParts.com. When buying online, pay close attention to the compatibility of the fuel tank with your specific Nissan model.
Junkyard:
If you're looking for a more affordable option, consider checking junkyards or salvage yards. You may be able to find used fuel tanks in decent condition for a fraction of the cost of a new one. For example, a forum user mentioned finding a used fuel tank for $50 at a junkyard, although shipping costs can add up for larger items like fuel tanks.
Regardless of where you purchase your new fuel tank, it is essential to ensure that it is compatible with your Nissan model and that you are aware of any additional costs, such as installation or shipping.
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Frequently asked questions
There are two options for draining your Nissan's fuel tank. The first option is to use a pump or a siphon setup to remove as much fuel as possible. The second option is to remove the tank and drain it out. However, this can be challenging if the tank is still full due to the weight.
Before removing the fuel tank, open up the top of the tank to inspect the internal condition, the amount of fuel left, and how difficult it will be to remove the fuel. If there is fuel remaining in the tank, you can use a hand siphon to remove it. Alternatively, you can insert a long, clear plastic tube through the fuel filler and use a vacuum pump to siphon the fuel.
If your fuel tank is full of crud, you must remove and clean it. The crud can destroy fuel pumps, so it is important to take care of this issue promptly. It is also a good opportunity to change the fuel pump since you have to remove the tank anyway.
You can purchase a new fuel tank for your Nissan from an authorized Nissan dealer or through online retailers. New tanks may be expensive and back-ordered, so consider looking for used tanks at junkyards or on websites like car-parts.com.
