Katerina Swanson
Draining a Porsche 914 fuel tank is a simple process. There are several methods to drain the tank, including using a siphon hose, a manual pump, or a hose suction or hand pump from the top. Disconnecting the fuel line from the fuel pump and placing the end in a receptacle is another way to drain the tank. Once the tank is drained, the inlet and outlet lines can be screwed back in, and the tank is ready for treatment.
How to Drain a 914 Fuel Tank
| Characteristics | Values |
|---|---|
| Tools | Hose, locking pliers, clamp, hand pump, siphon, fuel can |
| Steps | Disconnect the fuel pump, remove the end of the fuel line from the fuel pump, place the end in a receptacle, release the pliers, remove the tank, pour the fuel into a container |
| Tips | It is easier to drain from the bottom if you have a lift, be sure to lube the o-ring before putting it back in, do not use lines that are too long or too short |
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What You'll Learn
Disconnecting the fuel pump
Firstly, locate the service hatch at the bottom of the car. This is where you will access the fuel pump and begin the disconnection process. It is important to work safely and ensure there are no nearby flames or ignition sources when working with fuel.
Next, get a pair of locking pliers. These will be used for clamping and pinching hoses. Clamp the line from the fuel tank to the fuel pump using the locking pliers. This will help you control the flow of fuel and prevent any spills or leaks during the disconnection process.
Once the line is clamped, you can proceed to disconnect the fuel pump. Simply remove the end of the fuel line from the fuel pump by releasing the locking pliers. Place the end of the fuel line into a suitable receptacle, such as an approved gas storage container or fuel can, to catch the draining fuel.
It is worth noting that disconnecting the fuel pump may not completely drain the tank. This is because the fuel filter, which is the pickup point for the fuel, is usually not located at the very bottom of the tank. Therefore, some fuel may remain in the tank after disconnecting the pump.
To address this, you can use a siphon hose or a manual pump to remove the remaining fuel from the tank. Alternatively, you can try disconnecting the line from the fuel filter to the injection rail, cobbling a hose to it, and using the running fuel pump to empty the tank further. However, this may still leave some fuel in the tank, and you might need to remove the tank completely to access and drain the remaining fuel.
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Using a siphon hose
Firstly, you will need to disconnect the line from the fuel filter to the injection rail. This will allow you to attach a hose to the fuel pump and begin the siphoning process. It is important to ensure that the hose is securely attached to prevent any leaks. A clamp can be used to secure the hose, and it may be beneficial to use locking pliers to clamp the line from the fuel tank to the fuel pump.
Once the hose is securely attached, you can begin to siphon the fuel. Place the end of the hose in a suitable container, such as an approved gas storage container or fuel can, and release the clamp. The fuel will then begin to drain from the tank into the container. It is important to monitor the process closely to ensure that the container does not overflow and that the hose does not become disconnected.
It is worth noting that this method may not completely drain the tank, as the filter is typically not located at the bottom of the tank. Therefore, some fuel may remain, and you may need to remove the last bits manually. Additionally, be cautious when working with fuel, and ensure there are no nearby flames or sparks, especially if using an electric pump.
Overall, using a siphon hose is a relatively simple and effective way to drain a 914 fuel tank, but it requires careful execution and monitoring to ensure a safe and successful outcome.
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Sealing the tank
Firstly, it is important to prepare the tank for sealing. This involves flushing out the tank with water and cleaning it thoroughly. Mix one quart of a heavy-duty cleaner, such as the POR-15 Cleaner Degreaser, with one quart of hot water. Use this solution to remove any residue, gum, varnish, or sludge from the inside of the tank. It is crucial to ensure that the tank is free from any contaminants and structurally sound before proceeding to the next step.
Next, you will need to tape all the openings of the tank except for the top. This step is important to ensure that the sealer is only applied where needed and does not leak out. Once the tank is taped, mix and pour in the entire bottle of a metal prep solution, such as POR-15 Metal Prep. This solution will dissolve any remaining rust and etch the metal, creating a better surface for the sealer to adhere to. Allow the solution to sit for the recommended time, then drain and rinse the tank thoroughly with water.
After the tank is clean and prepared, it's time to apply the sealer. Retape the tank opening and pour in the sealer. Rotate the tank around to ensure that the sealer coats all areas. The sealer should be left to drain for at least 24 hours before reassembling the tank. The recommended sealer for the Porsche 914 fuel tank is the POR-15 Fuel Tank Sealer, which is formulated for metal surfaces and is impervious to various types of fuel. It acts as a liner and helps prevent rust, corrosion, and small fuel leaks.
Once the sealer has drained and dried, you can reassemble the tank. Screw in the inlet and outlet lines, along with the sender unit. It is recommended to replace the fuel lines with new ones that are about 2 feet long. Longer lines make it easier to lift the tank and access the hose clamps for future maintenance. However, be careful not to use lines that are too long, as they may get crimped and block fuel flow. Additionally, if your tank has any rubber components, remember to lubricate them before reassembly to prevent tearing or pinching.
Finally, it is important to note that some fuel tank treatments may require additional steps or have specific instructions. Always refer to the manufacturer's instructions for the fuel tank sealer you are using to ensure proper application and safety. Additionally, always exercise caution when working with chemicals and fuels, and ensure proper ventilation and personal protective equipment.
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Removing the fuel level sender
Firstly, locate the fuel level sender. This is usually found on top of the fuel tank. It is important to note that the fuel level sender provides the fuel gauge with information about the fuel level in the tank. Therefore, removing it will allow you to access and drain the fuel from the tank.
Next, gather the necessary tools for the removal process. You will need tools like wrenches or sockets to unbolt the fuel level sender. Ensure that you have the correct size tools to fit the bolts on your fuel level sender. Additionally, it is recommended to have a container or receptacle ready to catch any fuel that may spill during the removal process.
Once you have the required tools, follow these steps:
- Disconnect the negative battery terminal: Before starting any work on the fuel system, it is essential to disconnect the negative battery terminal to prevent any accidental sparks or electrical issues.
- Clamp the fuel line: Use locking pliers to clamp the fuel line from the fuel tank to the fuel pump. This will prevent fuel from flowing during the removal process and reduce the risk of spills.
- Place a container underneath: Position an approved fuel storage container or a suitable receptacle underneath the fuel level sender to catch any fuel that may drain during the removal.
- Unbolt the fuel level sender: Using the appropriate wrench or socket, carefully unbolt the fuel level sender. Turn the bolts counterclockwise to loosen them. Depending on your vehicle's configuration, there may be two short metal lines or a single bolt holding the sender in place.
- Remove the fuel level sender: After unbolting, carefully lift and remove the fuel level sender from the fuel tank. Be cautious as there may still be some fuel in the sender or the lines.
By following these steps, you will successfully remove the fuel level sender from your 914 fuel tank, allowing you to proceed with draining the fuel and performing any necessary maintenance or repairs. Remember always to put safety first when working with fuel systems.
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Draining from the bottom
Draining a 914 fuel tank from the bottom is a straightforward process, especially if you have a lift. Here is a step-by-step guide to help you drain your 914 fuel tank safely and effectively:
First, ensure you have the necessary tools and safety equipment. You will need locking pliers for clamping and pinching hoses, a container or can to catch the drained fuel, and some rags or absorbent material to handle any spills. It is also important to work in a well-ventilated area and avoid any sources of ignition, such as flames or sparks.
Next, locate the service hatch at the bottom of your car and open it. This will provide access to the fuel pump and surrounding components. Before you begin, it is recommended to clamp the line from the fuel tank to the fuel pump using the locking pliers. This will help you control the flow of fuel during the draining process.
Once you have accessed the fuel pump, simply disconnect it. You can do this by removing the end of the fuel line from the fuel pump. Place the end of the fuel line into your chosen container or can to catch the drained fuel. Be careful to avoid any spills or leaks during this step.
At this point, you can release the locking pliers and allow the fuel to drain into the container. It is important to note that some fuel may remain in the tank after draining. You can remove the last bits of fuel by tilting the tank or using a siphon hose after it has been removed.
Finally, once the tank is drained, you can proceed with any further maintenance or repairs. Remember to dispose of the drained fuel responsibly and according to local regulations. Always refer to your vehicle's manual or seek professional advice if you are unsure about any steps or procedures.
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Frequently asked questions
Draining a 914 fuel tank is a simple process. First, open the service hatch at the bottom of the car and disconnect the fuel pump. Then, use a siphon hose or a manual pump to drain the fuel into a container.
You will need a siphon hose or a manual pump, and a container to collect the fuel. It is also recommended to have locking pliers for clamping and pinching hoses.
The time it takes to drain a 914 fuel tank can vary depending on the method used. However, it should not take longer than a few hours.
It is important to work in a well-ventilated area and to avoid any sources of ignition such as flames or sparks. It is also recommended to wear protective gear such as gloves and eye protection.
After draining the fuel tank, it is important to properly dispose of the fuel in an approved gas storage container. Additionally, you may want to clean the tank using a treatment such as POR-15 or oxalic acid.
