Replacing Tempo Fuel Tank Withdrawal Assembly: Step-By-Step Guide

Tempo fuel tanks are plastic tanks used for storing fuel. Over time, the tanks and their components may degrade and need to be replaced. This is a guide on how to replace the fuel withdrawal assembly on a Tempo fuel tank. The fuel withdrawal assembly is the part of the tank that allows fuel to be extracted. It is usually made of metal and is attached to the plastic tank. While it may seem impossible to remove the assembly from the tank without cutting into it, this guide will provide a simple solution.

Warming and twisting the metal fitting

Firstly, ensure you have the right tools for the job. In this case, you'll need a hairdryer and a pair of large Vise-Grip pliers. It's important to use the correct tools to avoid damaging the tank or injuring yourself.

Now, let's begin the process:

• Secure the Vise-Grips: Clamp the large Vise-Grip pliers onto the metal fitting of the Tempo fuel tank. Ensure that the pliers have a firm grip on the fitting, as you'll be applying some force during the twisting and pulling process.
• Warm the Area: Using the hairdryer on its highest setting, direct the warm air to the area where the metal fitting attaches to the plastic tank. Warm this area for approximately 30 seconds. The heat will help soften the plastic, making it easier to remove the metal fitting. Keep the dryer running in the next step.
• Twist and Pull: With the hair dryer still running, gently begin to twist and pull the metal fitting out of the plastic. It's important to pull straight out to avoid deforming the opening in the plastic. Apply gentle but firm force, and you should feel the metal fitting starting to come loose.
• Complete the Removal: Continue twisting and pulling, and the metal fitting should come out completely. Be cautious and patient during this process to prevent any damage to the plastic tank or the threads on the metal fitting.

By following these steps, you'll be able to successfully warm and twist the metal fitting, allowing you to remove the fuel tank withdrawal assembly of the Tempo tank. Remember, this method is suitable for diesel tanks, but for gasoline or explosive tanks, seek alternative methods or professional assistance.

Using a hair dryer to remove the fuel pickup

To start, you will need a hair dryer and a pair of large Visegrips. First, clamp the Visegrips onto the metal fitting of the fuel pickup. Then, use the hair dryer on a high setting to warm the area where the metal fitting attaches to the plastic for about 30 seconds. Keep the dryer running and gently begin to twist and pull the metal fitting out, ensuring that you pull straight out to avoid deforming the plastic opening. With this method, the metal fitting should come out easily and can be pushed back into the plastic neck if needed.

If you are working with a gasoline tank, the only safe method for removal is to fill the tank with freshwater until it overflows after removing any fuel. This method is messy and requires a thorough cleaning and drying of the tank afterward.

Replacing the fuel pickup tube

The fuel pickup tube can be removed from a Tempo fuel tank without cutting into the tank. This method, however, only applies to diesel tanks, which are not explosive. For gasoline tanks, the only safe method is to fill the tank with freshwater after removing any fuel left in the tank.

To remove the fuel pickup tube from a diesel tank, first clamp large vise grips onto the metal fitting. Then, use a hairdryer to warm the area where the metal fitting attaches to the plastic for about 30 seconds, on high heat. With the dryer still running, gently twist and pull the metal fitting out, ensuring that you pull straight out so as not to deform the opening in the plastic.

Once the metal fitting has been removed, you can inspect the pickup tube for any cracks, clogs, or collapses. If the pickup tube is damaged, it can be replaced. If it is intact, simply push the metal fitting back into the plastic neck.

It is important to note that Tempo has been out of business for several years, so finding replacement parts for the fuel tank may be difficult. Additionally, the pickup assembly sits in a sunken area, which can cause water to pool and leak into the tank, so it is important to regularly check the gasket and replace it if necessary.

Avoiding cutting into the tank

When replacing the fuel tank withdrawal assembly of a Tempo tank, it is important to avoid cutting into the tank. Here are some tips and suggestions to help you achieve this:

Firstly, it is important to note that cutting into the tank is not the only option. In some cases, it may be possible to simply twist or pull out the metal fitting. This can be done by clamping large vise grips onto the metal fitting and then warming the area where the metal attaches to the plastic. This can help to loosen the connection, making it easier to remove the metal fitting without cutting into the tank.

Additionally, it is recommended to clean the outside of the tank before beginning any work. This will help to prevent dirt or debris from entering the tank during the replacement process. It is also a good idea to clean the inside of the tank and allow it to air dry before installing a new pump. These steps will help to ensure that the tank is free of contaminants that could potentially cause issues down the line.

If you must cut into the tank, it is important to take the necessary safety precautions. This includes ensuring that the tank is used for diesel fuel, which is not explosive. Do not attempt this method if the tank is used for gasoline or any other explosive substance. When cutting into the tank, be extremely careful not to cut any wires or tubes that may be connected to the tank, as this could create a hazardous situation.

Finally, consider seeking advice or assistance from experienced mechanics or professionals. Online forums and communities dedicated to boating or automotive repairs can be a valuable resource for guidance and suggestions on how to replace the fuel tank withdrawal assembly without cutting into the tank. These communities often provide insights and alternative methods that can help you avoid cutting into the tank.

Using a gasket to prevent water in the tank

Gaskets are essential components in machinery, providing a seal between two surfaces to prevent leaks. When it comes to fuel tanks, such as the Tempo fuel tank, using a gasket can be an effective way to prevent water ingress, which could otherwise lead to serious issues. Here's how you can use a gasket to prevent water from entering your Tempo fuel tank:

Choosing the Right Gasket Material

The gasket material you choose will depend on the specific application and the type of fuel you're dealing with. For example, cork gaskets should not be used with fuel applications. Instead, opt for gasket materials such as rubber or paper, which are commonly used in automotive settings and can withstand exposure to fuels and related chemicals.

Sealing the Fuel Tank Withdrawal Assembly

The fuel tank withdrawal assembly is a critical area to focus on when aiming to prevent water ingress. This is where the fuel is drawn out of the tank, and any leaks or weak seals can allow water to enter. Apply a gasket material compatible with fuel applications, such as Highside Chemicals' Leak Lock, around the assembly. This will create a barrier that prevents water from seeping into the tank through any small openings or weak seals.

Maintaining a Tight Seal

Over time, gaskets can degrade, lose their shape, or become brittle, compromising the seal they provide. To maintain a tight seal, consider using a gasket dressing or adhesive, such as High Tack, to keep the gasket securely in place. This will help prevent the gasket from shifting or falling out of place, ensuring a continuous watertight seal.

Replacing Old Gaskets

If you're dealing with an old or damaged gasket, it's crucial to replace it promptly. Old gaskets can become brittle, crack, or degrade, providing a pathway for water to enter the fuel tank. Remove the old gasket carefully, ensuring you clean the surface thoroughly to eliminate any residue. Then, install a new gasket, ensuring it is securely seated and sealed to prevent water ingress.

Preventative Measures

In addition to using gaskets, there are some preventative measures you can take to avoid water contamination in your Tempo fuel tank. Always tighten the gas cap securely after refuelling, especially if you're refuelling in rainy or humid conditions. Consider using fuel additives that are designed to remove water from fuel, such as ISO-HEET or STP Water Remover. These additives can provide an extra layer of protection by helping to eliminate any water that may find its way into the tank.

By following these steps and paying close attention to the condition of your gaskets and seals, you can effectively prevent water from entering your Tempo fuel tank, thus avoiding the costly and dangerous consequences of water contamination.

Frequently asked questions