Changing The Filter On A Webster M34dj-3 Fuel Oil Pump

The Webster M34DJ-3 is a single-stage fuel oil pump with a capacity of 3 gallons per hour and a rotational speed of 3450 RPM. It is known for being noisy and producing a pulsating sound. To change the filter on the Webster M34DJ-3 fuel oil pump, you will need to locate the bleeder valve on the pump. This valve is usually on the top left of the pump, and you can use an opposing wrench to loosen it if necessary. Once you have located the bleeder valve, you can proceed to change the oil filter. It is important to ensure that you have all the necessary tools and safety equipment before attempting to change the filter.

Locating the bleeder valve on the Webster M34DJ-3 oil pump

The bleeder valve on the M34DJ-3 pump may not look like a conventional zerk fitting. Instead, it could be a part of a piercing valve, as someone might have replaced the original bleeder valve with a more accessible option. This setup is functional but might be considered a "ghetto" repair by some.

When bleeding the system, it is recommended to use a piece of vinyl tubing slipped over the valve, with the other end of the tubing placed in a bottle to catch the oil. This process will help minimise any mess created during the bleeding process.

Using an opposing wrench to avoid breaking the bleeder valve

When changing the filter on a Webster M34DJ-3 fuel oil pump, you may need to use a wrench on the bleeder valve. This valve is used to remove air pockets from the brake lines, which can lead to brake failure if left unattended. Using the wrong size wrench can cause damage to the valve or other parts of the brake system, so it is important to use the correct size.

The size of the wrench you will need depends on the type of valve on your vehicle and can vary between 7mm and 15mm. Traditional bleeder valves are opened manually with a wrench and can be frustrating and time-consuming. They are also cheaper and easier to find than speed bleeder valves, which have a one-way check valve that makes the process easier and less risky.

There are three types of wrenches commonly used to bleed a brake system: flare nut wrench, line wrench, and box-end wrench. Each has its advantages and disadvantages. For example, a flare nut wrench is great for tight spaces but may not provide enough torque. On the other hand, a box-end wrench can provide more leverage in confined spaces but may not work well on rounded nuts. It is important to have all three types on hand to ensure you are prepared for any situation.

When selecting the right wrench size for your brake bleeder valve, consider the make and model of your vehicle, as well as the location and space availability. Additionally, the type of fitting in your brake system will determine if you need a metric or standard wrench. Always refer to your vehicle's specifications to prevent any damage to the valve or brake system.

Using a Suntec A2VA-7116 pump as a replacement

If you are looking to replace your Webster M34DJ-3 fuel oil pump with a Suntec A2VA-7116 pump, here is a step-by-step guide to help you with the process:

Step 1: Purchase the Suntec A2VA-7116 Pump and Gather Necessary Tools

Before beginning the replacement process, ensure that you have purchased the correct pump, the Suntec A2VA-7116, and that you have all the necessary tools and materials required for the job. This may include items such as a new strainer and gasket, as well as the appropriate sized fittings and adapters for your fuel line.

Step 2: Remove the Old Webster M34DJ-3 Pump

Turn off the furnace and disconnect the power source to ensure safety. Proceed to remove the old Webster M34DJ-3 pump by taking out the fittings and adapters connecting it to the fuel line. Be sure to also remove the nozzle and electrode assembly for cleaning or replacement.

Step 3: Install the New Suntec A2VA-7116 Pump

Take the new Suntec A2VA-7116 pump and install it in the place of the old pump. Use the fittings and adapters you removed earlier to secure the new pump in place. Ensure that all connections are tight and secure to prevent any fuel leaks.

Step 4: Install the Strainer and Gasket

The Suntec A2VA-7116 pump comes with an internal strainer, so you won't need to worry about purchasing a separate one. However, it is recommended to install a new gasket to ensure a proper seal. Follow the manufacturer's instructions for properly installing the gasket.

Step 5: Reattach the Nozzle and Electrode Assembly

Clean or replace the nozzle and electrode assembly as needed, and then reattach it to the Suntec A2VA-7116 pump. Ensure that all connections are secure.

Step 6: Test the New Pump

Once you have completed the installation, turn on the power to the furnace and test the new pump. Check for any signs of fuel leaks and ensure that the pump is operating correctly. Adjust the settings as needed to achieve optimal performance.

By following these steps, you should be able to successfully replace your Webster M34DJ-3 fuel oil pump with the Suntec A2VA-7116 pump. Remember to always exercise caution when working with fuel systems and ensure that you have the necessary knowledge and skills to perform the replacement safely and effectively.

Using a 200 or 300# gauge from a plumbing supply or home centre

If you want to use a 200 or 300# gauge from a plumbing supply or home centre, you will need to purchase a few additional parts to make it work. You will need a 1/4 x 1/8 reducing coupling (also called a bell reducer) or a 1/4" coupling and a 1/4 x 1/8 bushing. You will also need a 1/8 male pipe x 3/16" flare adaptor. You can use either a straight or 90º fitting. If your gauge is 1/8" male pipe thread, you will need a 1/8" coupling and flare adaptor.

Using a felt or polyester can-type filter

When using a felt or polyester can-type filter, you should be aware that the pump does not have a screen and therefore has no user-serviceable parts. However, you can still perform maintenance on the pump by following these steps:

Firstly, before beginning any work on the pump, ensure that you have the correct equipment. For this task, you will need a 200 or 300-pound gauge from a plumbing supply or home centre, as well as a couple of adapters. If you wish to use a fancier gauge, you can also opt for the Westwood T-10 pressure gauge kit or the T-15 vacuum gauge kit.

Next, you will need to address the vacuum gauge. This should be installed on a 10-micron, spin-on fuel filter, which should be preceded by the felt or polyester can-type filter.

Finally, when it comes to the fuel filter itself, you should ensure that you are using the correct type of filter for your pump. As previously mentioned, a felt or polyester can-type filter is ideal for the Webster M34DJ-3 fuel oil pump. Additionally, you should ensure that the filter is properly bled after changing it. This can be done using the bleed screw on the filter canister, which is located on the top left of the pump. When bleeding the filter, be sure to use an opposing wrench to avoid breaking it loose from the pump.

Frequently asked questions