Sylvie Willis
The MG Midget is a fun and well-loved car, but it is not without its quirks and challenges. One common question among MG Midget owners is how to drain the fuel tank, and whether the car has a fuel tank drain. While some older models of the MG Midget do have a fuel tank drain, newer models do not. This has led to owners discussing various methods for draining the tank, such as using a fuel pump or siphoning. Some owners have also shared their experiences with fuel leaks and overflows, which can be caused by issues with the fuel line or tank venting. Overall, while the MG Midget may be a fun and zippy car to drive, it requires regular maintenance and care to keep it running smoothly.
| Characteristics | Values |
|---|---|
| Fuel tank drain | Some models have a drain plug at the bottom of the tank, but newer models do not. |
| Fuel tank overflow | Some models have a small green end at the top of the tank, which can cause fuel to overflow into the trunk. |
| Fuel pump | Some models have an in-tank fuel pump, while others have an external fuel pump. |
| Fuel line | The fuel line enters the tank from the bottom and has a tight fitting. |
| Coolant drain | The 1500 Midget does not have a coolant drain, and the overflow tank needs to be removed and turned upside down to be emptied. |
| Maintenance | MG Midgets require more maintenance compared to modern cars and Japanese cars. |
| Performance | MG Midgets are fun to drive, nimble, and zippy. They have poor electronics and terrible ignition systems. |
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What You'll Learn
Fuel tank draining methods
Using a Hose
Using a hose is a straightforward method. Insert one end of the hose into the tank and use your mouth to suck on the other end to start the flow of fuel. Then, transfer the fuel to a container. However, this method carries the risk of inhaling toxic fumes or accidentally ingesting fuel, which is dangerous.
Manual Pump
This method requires a manual pump, a fuel tank adapter, and a fuel line. Connect the fuel line to the tank adapter and the adapter to the manual pump. Once set up, start the pump to force the fuel out of the tank. Remember to keep a container nearby to collect the drained fuel.
Fuel Siphon System
A fuel siphon system is a manually operated pump that draws fuel from the tank into a container. These systems are available at most auto stores. Ensure you purchase one approved for combustible materials to avoid any safety hazards. You will need a hose and a pump to draw out the fuel.
Air Compressor
Draining a fuel tank using an air compressor is considered one of the easiest ways to remove fuel from a tank. The process is straightforward, but specific steps may vary depending on the equipment used.
Tipping the Car
This method involves tipping the car towards the passenger side to access the fuel neck connection. By removing this connection, you can see directly into the tank and better control the draining process.
Using the Fuel Pump
If your car has an electric fuel pump, you can run the fuel low and then use the pump to empty the tank. Route the fuel line to a suitable container to collect the fuel. This method is safer and simpler, especially if you don't need to drain the tank frequently.
Remember always to have a suitable container to catch the drained fuel and dispose of it properly or reuse it safely.
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Fuel tank plug removal
To remove the fuel tank plug, first locate the drain plug, which is usually found near the bottom of the fuel tank. You may need to get under the car to find it, and it will be on the same side of the car as the gas door. Once located, place a large pan or basin underneath the plug to catch the fuel. Make sure the car is turned off and that there is not too much gas in the car, as it will all be coming out.
Now, you can begin to remove the plug. The plug is usually a small bolt screwed directly into the tank, and you will need a wrench or spanner to loosen it. As you loosen the plug, fuel will start to drain out, so be careful and keep an eye on it. This process can take a long time, up to several minutes per gallon.
Alternatively, you can drain the fuel tank using a hose or a fuel siphon system's hose. Insert the hose into the tank and suck on the other end to start the flow of fuel, which you can then transfer to a container. This method does not require any specialized equipment, but it carries some risk of inhaling toxic fumes or getting fuel in your mouth, which is dangerous.
Another method is to tip the car to one side towards the passenger side to access the fuel neck connection. This will allow you to see directly into the tank and make the process easier.
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Fuel tank leak issues
If your MG Midget is exhibiting signs of a fuel tank leak, it is important to take immediate action. Driving with a leaking fuel tank is dangerous and can lead to wasting gas. Check the area directly below the tank for any wet spots or discoloured foliage if your car has been parked for an extended period.
To address the fuel tank leak in your MG Midget, consider the following suggestions:
- Check for any signs of leakage around the fuel line and tank connection. Tighten the fitting if possible, but be cautious as this may not always fix the issue, as seen in a case where a user tightened the fitting but the leak persisted.
- Drain the fuel tank and remove it to inspect for any damage or issues, such as a pipe inside the tank that may be leaking.
- Consider replacing the fuel tank if the leak is severe or if the tank is old and damaged. This may be a safer option than attempting to repair the leak, especially if the tank is made of metal.
- If you choose to repair the leak, ensure that the area is clean and free of debris or rust. You can use products like "Seals All" or auto parts store gas tank sealant, but be aware that some sealants may not be effective on metal tanks.
- As a temporary fix, you may try using a product like JB Weld, specifically the type that is fuel-safe, but this should only be used until you can get to a repair shop.
- To drain the fuel tank, you can use a spare fuel pump or the siphoning method, which is safer than opening the drain plug.
- Tipping the car towards the passenger side can make it easier to drain the tank and access the fuel neck connection.
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Fuel tank overflow
One common cause of fuel tank overflow is a faulty or blocked vented cap. The vent in the fuel cap allows air to enter the tank and equalize pressure, preventing the tank from over-pressurizing and overflowing. If the vent is blocked or malfunctioning, it can cause the tank to overflow, especially when the weather is warm, as fuel expands with increasing temperature.
Another potential cause of overflow is an issue with the fuel lines or splitter valve. Fuel lines from the splitter valve to the tanks must be of the correct length and diameter, including fittings. Using different brands of hoses and fittings can lead to slight variations in size, which can cause problems. It is recommended to use the same brand for all components. Additionally, a clogged vent valve or collapsed hose leading to or from the tank can restrict fuel flow and cause overflow.
In some cases, the fuel tank may overflow due to parking the vehicle in a certain position. It is advised to avoid parking with the front of the car higher than the rear after filling the tank, as this can lead to overflow. Parking in direct sunlight should also be avoided, as the increase in temperature can cause the fuel to expand and overflow.
To prevent fuel tank overflow, it is important to follow the guidelines in the owner's manual, which may include not filling the tank completely and taking into account the surrounding temperature and terrain when filling up. Regular maintenance and inspection of the fuel system, including the fuel lines, vented cap, and splitter valve, can also help identify and address potential issues before they lead to overflow.
Additionally, some older MG Midget models may have a drain plug at the bottom of the fuel tank, allowing for the removal of fuel. However, newer tanks may not have this feature, and alternative methods such as siphoning or using a fuel pump to empty the tank may be necessary.
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Fuel tank maintenance
Placement and Setup
When installing a new fuel tank, placement and setup are crucial. It is recommended to position the tank in an east-west orientation to minimise exposure to solar radiation, which can cause long-term weathering and tank brittleness. Above-ground storage tanks (ASTs) are generally preferred over underground storage tanks due to their ease of maintenance, relocation, and lower environmental impact. Ensure your AST is properly set up and complies with all federal, state, and local regulations. ASTs should only be used outdoors and should be placed away from safety hazards and direct sunlight exposure.
Regular Inspections
Regular inspections of your fuel tank are vital to prevent damage, leaks, and equipment downtime. Check for leaks, spills, and the general condition of your tank and equipment. Pumps, vents, valves, and pipelines should be visually inspected weekly, while a more comprehensive physical check of bolt tightness, paint deterioration, and the condition of pumps, vents, and valves should be conducted every six months. During harsh winters or extreme conditions, you may need to increase the frequency of inspections.
Cleaning and Maintenance
Keep the area around your tank clear of debris and vegetation to easily identify any leaks or spills. Regularly check for water or product accumulation in the interstitial space and remove any waste according to local regulations. Maintain the quality of your fuel to prevent damage to the tank and equipment. Filler caps should be cleaned using a wire brush if necessary, and a small amount of lithium grease can be applied to prevent rust buildup.
Safety Considerations
Fuel storage tanks should be adequately fire-guarded or vaulted to prevent fuel ignition in case of emergencies. Consider investing in a double-walled tank or secondary containment area to mitigate the risks of leaks and spills. Ensure your fuel tank is grounded (electrically earthed) if it is in a static position.
Draining the Fuel Tank
While some older MG Midget models may have a drain plug to facilitate fuel tank draining, newer models typically do not. Instead, it is recommended to run the fuel low and use a fuel pump to pump the tank dry, routing the fuel line to a suitable gas can. This method is safer and simpler than opening a drain plug, reducing the risk of exposure to harmful ingredients in the fuel.
By following these maintenance guidelines and staying proactive with inspections and cleaning, you can ensure the safe and reliable operation of your fuel tank.
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Frequently asked questions
You can drain the fuel tank of your MG Midget by tipping the car to one side towards the passenger side and removing the fuel neck connection. You can also disconnect the fill tube and siphon the fuel from the trunk.
Your MG Midget fuel tank could be leaking due to a faulty fuel line or fitting. Check the fuel line for any scratches or blockages and ensure that the fitting is tight.
If your MG Midget fuel tank is overflowing, it could be due to a disconnected tank overflow or a blocked fuel vapor recovery canister. Check the fuel vapor recovery canister and ensure that the drain line is connected.
You can improve the fuel economy of your MG Midget by replacing the ignition system with Luminition or installing a Facet electric fuel pump.
