Replacing Fuel Pump In Mgb: Step-By-Step Guide

If you're looking to replace the fuel pump in your MGB, there are a few things you should keep in mind. Firstly, it's important to determine the source of the leak, as this will help you decide whether to replace or repair the pump. You'll also need to gather the necessary tools and safety equipment, such as rubber gloves, safety glasses, and a fire extinguisher. When it comes to the process of replacing the fuel pump, it's recommended to invest in a new copper fuel line, pay attention to the angle of the pump, and have a new fuel filter ready. Additionally, make sure to disconnect the power lead and ground wire, and be prepared for some fuel spillage.

Disconnect power lead and ground wire

Disconnecting the power lead and ground wire is the first step in replacing the fuel pump in an MGB. This is a crucial step as it ensures that you can work on the fuel pump safely without the risk of electrical current.

To begin, locate the power lead and ground wire connected to the fuel pump. These should be clearly visible once you have positioned yourself under the car and found the fuel pump. It is important to note which wire is which, as you will need to reconnect them later. You should also take this opportunity to inspect the condition of the wires—if they look worn or damaged, now is a good time to replace them.

Before disconnecting the wires, ensure that you have a suitable container and a rag nearby to catch any fuel that may spill during the process. Once you are ready, carefully disconnect the power lead and ground wire from the fuel pump. It is important to work slowly and carefully to avoid any damage to the wires or the fuel pump itself.

With the wires disconnected, you can now safely remove the fuel pump from the car. The next steps will involve removing the gas line pipe fittings and then taking out the old fuel pump. However, disconnecting the power lead and ground wire is a critical first step to ensure a safe and successful fuel pump replacement.

Remove gas line pipe fitting

Removing the gas line pipe fitting from an MGB is a relatively straightforward process, but it is important to take the necessary safety precautions and have the right tools on hand. Here is a step-by-step guide to help you through the process:

Before you begin, make sure you are wearing the appropriate safety gear, including rubber gloves, safety glasses, and coveralls. It is also recommended to have a fire extinguisher nearby.

Locate the gas line pipe fitting: The gas line pipe fitting on an MGB is located near the rear of the vehicle, usually in the right rear wheel well. To access it, you will need to jack up the rear of the car and remove the right rear wheel.

Prepare the work area: Place a suitable container and a rag under the gas line pipe fitting to catch any fuel that may spill during the removal process.

Disconnect the gas line: Using the appropriate tools, carefully loosen and remove the gas line pipe fitting that leads from the gas tank. This step should be done first to avoid fuel spillage.

Remove the gas line fitting: Once the gas line has been disconnected, remove the gas line fitting from the fuel pump. Pay close attention to the angle of the pump and the orientation of the fittings, as this will be important when installing the new pump.

Inspect and replace the fuel line: Take this opportunity to inspect the fuel line for any signs of wear or damage. If the fuel line appears old or worn, it is recommended to replace it with a new copper fuel line, paying attention to the angle and flanged ends of the line.

By following these steps, you can safely and effectively remove the gas line pipe fitting from your MGB. Remember to work carefully and take the necessary precautions to avoid any fuel spills or accidents.

Remove gas line fitting into the fuel pump

To remove the gas line fitting into the fuel pump of your MGB, you'll first want to disconnect the power lead and ground wire, taking note of which is which and inspecting their condition. Then, take a look at the angle of the pump, specifically the angle of the flanged fittings from the copper fuel lines. Get a suitable container and a rag, and keep them close by.

Now, you can start to remove the gas line pipe fitting leading from the gas tank. This step is important to do first. Then, you can move on to removing the gas line fitting into the fuel pump.

• It is recommended to invest in a new copper fuel line, or at least the section from the tank to the pump. The flanged ends are crucial, and you'll want to get the angle right when positioning the new pump.
• Buy a new fuel filter beforehand and have it ready to go when you're installing the new pump. This will help eliminate troubleshooting if something goes wrong.
• Before ordering a new fuel pump, check if it needs a fitting kit.
• You may want to wear rubber gloves, safety glasses, and coveralls during this process, as you will likely get some fuel spilled on you.
• Unhook the battery ground first and have a fire extinguisher nearby as a safety precaution.
• Consider replacing the rubber fuel lines and the rubber mounting grommet while you're at it.

By following these steps and tips, you'll be well on your way to successfully removing the gas line fitting into the fuel pump of your MGB.

Remove and replace fuel line to the front of the car

To remove and replace the fuel line to the front of the car, follow these steps:

First, disconnect the power lead and ground wire, taking note of which is which and inspecting their condition. Then, take note of the angle of the pump, particularly the angle of the flanged fittings from the copper fuel lines. Get a suitable container and a rag, and keep them close by.

Next, remove the gas line pipe fitting leading from the gas tank. This step is very important and should be done first. Then, remove the gas line fitting into the fuel pump from the disconnected line from the gas tank.

Now, remove the fuel line that leads to the front of the car. Inspect it for any wear and replace it if necessary. It is recommended to invest in a new copper fuel line, or at least the section from the tank to the pump, ensuring the flanged ends are in good condition.

Before taking the old fuel pump out, note the position of the unit inside the mounting bracket. You may need to apply some lubricant to the hardware. Once the old fuel pump is removed, replace any part of the fuel line that looks worn or old.

Finally, put the new fuel pump into its bracket, ensuring that you clean and lubricate the rubber sleeve. Perform a mock fitting to make sure that you have the correct angle for each fuel line. Tighten the mounting bracket, and then connect the fuel line at the pump and tighten the connection at the gas tank.

Remember to also hook up the ground and power leads. If you have installed the pump correctly and it is functioning properly, you should hear a clicking sound when the key is turned on and then again when it fills up the float.

Clean and lubricate rubber sleeve

To clean and lubricate the rubber sleeve of your MGB's fuel pump, you'll first need to source a suitable lubricant. It is recommended to avoid petroleum-based products, as these can damage and decompose rubber. Instead, opt for a silicone-based lubricant, as the better the quality of the silicone, the more effective the product.

Once you have your lubricant, follow these steps:

• Use a toothpick to gently pry open the rubber or plastic cap of the fuel pump's oil reservoir.
• Fill the reservoir with your chosen lubricant, leaving a little room to prevent the oil from spilling out when you replace the cap.
• Clean any excess oil from the fan surface, ensuring that the label can stick firmly.
• Reattach the cap securely.
• Repeat this process every three to six months, or as needed, to ensure the longevity of your fuel pump.

It is also worth noting that some sources suggest cleaning the rubber sleeve with soap and water, or a mild degreaser, before lubricating it. This can help remove any dirt, grease, or stains and ensure that the lubricant can be properly and effectively applied.

Frequently asked questions