Easy Guide: Installing Fox Body Oil Pan Gasket

Installing an oil pan gasket can be a challenging task, especially when performed in-chassis. This process involves lifting the engine, dropping the oil pan, and carefully removing and replacing the oil pump and gasket. While it is possible to complete this repair without removing the engine, it can be a tight and tricky process, and there is a higher chance of leaks. To ensure a successful installation, it is recommended to pull the engine and perform the gasket replacement with the engine out of the vehicle. This allows for better access, making it easier to align the gasket and oil pan and secure the bolts without the constraints of limited space.

Removing the engine or dropping the K-member

If you're attempting to replace the oil pan gasket on a Fox Body Mustang, you may be wondering if it's possible to do so without removing the engine or dropping the K-member. Unfortunately, this is a challenging task, and you'll likely need to lift the engine and drop the K-member to access the oil pan and gasket properly. Here's a step-by-step guide on how to approach this process:

• Disconnect the battery at the battery ground terminal. This is an essential safety precaution to prevent any electrical issues during the process.
• Remove the fan and fan shroud. This will give you better access to the engine and its components.
• Loosen or remove the transmission mount. This will provide some flexibility when lifting the engine.
• Remove both motor mounts. The large nuts that secure the motor mounts to the frame will need to be removed to allow for engine movement.
• Consider removing the driveshaft. This step is not mandatory but can provide additional clearance when lifting the engine.
• Disconnect the catalytic converter pipes at the headers. This will give you more room to work and help you raise the engine higher if needed.
• Prepare to drop the steering rack and disconnect the steering shaft. Depending on your Mustang's configuration, you may need to lower the steering rack and disconnect the steering shaft for better access.
• Jack up the engine with a wooden block under the oil pan. Use a jack to carefully lift the engine, being mindful of any potential binding issues or hoses/electrical wiring that may need to be disconnected.
• Support the engine with wooden blocks. Place wooden blocks between the headers and the frame to securely support the engine while it's lifted.
• Lift the rear of the transmission if necessary. You may need to jack up the rear of the transmission as well to achieve the required clearance for accessing the oil pan.
• Scrape and clean the pan mating surfaces. Ensure that any residual gasket material or debris is removed from the mating surfaces to prevent leaks.
• Prepare the new gasket and oil pan. Have the new gasket and oil pan ready for installation. You may need to trim any excess rubber from the gasket's mould to ensure a proper seal.
• Install the new gasket and oil pan. Carefully position the new gasket and oil pan, following the manufacturer's instructions and ensuring that all bolts are properly tightened.
• Reassemble and lower the engine. Once the new gasket and oil pan are in place, carefully reverse the disassembly process, lowering the engine and reattaching any disconnected components.

Remember that this is a complex task, and it's always recommended to have mechanical experience or expertise when working on your Mustang. If you're unsure about any steps or procedures, don't hesitate to consult a professional or seek advice from a trusted mechanic. Safety should always be your top priority when working on your vehicle.

Lifting the engine

Before beginning, ensure you have the necessary tools and equipment for the job. You will need an engine hoist, also known as a cherry picker, which can be rented or purchased. The hoist should have weight markings and adjustable settings to accommodate different engine weights. Additionally, you will need a 3/8-inch ratchet and socket set, and two 4-foot sections of heavy chain.

Start by opening the hood of your vehicle and locating the engine. Find the approximate middle point of the engine. This is where you will attach the chains and hoist. Drape the chains across the middle point in an "X" shape, ensuring they are securely positioned.

Next, look for bolts on the engine that can be removed, such as those on the intake manifold or exhaust manifolds. These bolts should be located near the ends of the chains. Remove one bolt using an open-end wrench or the ratchet and socket. Place one chain between the bolt and the object it was bolted to, then reinstall the bolt securely. Repeat this process for the other chain, so that each length is bolted across the engine at two points.

Now, adjust the hoist arm to the appropriate weight setting for your engine. If you are unsure of the exact weight, always approximate low to err on the side of caution. Attach the hook on the arm of the engine hoist to the middle of the engine, sliding the chains into the hook until the hoist is securely connected.

With the hoist connected, you can now safely lift the engine. Be cautious and ensure the engine is securely attached before applying any upward force. Once the engine is lifted, you will have the necessary clearance to access and replace the oil pan gasket. Remember to support the engine securely to prevent accidental lowering or instability.

Always exercise extreme caution when working with automotive equipment and follow all safety guidelines. If you are unsure about any steps or procedures, consult a professional mechanic or seek advice from experienced individuals.

Removing the oil pump

Before removing the oil pump, it is important to prepare the car and the engine for the task. This includes disconnecting the battery at the ground terminal, removing the fan and fan shroud, and loosening or removing the motor mounts and transmission mount. You may also need to disconnect the drive shaft and the exhaust from the collector.

Once the engine is prepared, you can begin to jack it up, using wood blocks to support it and achieve the required height. Be mindful of any hoses or electrical wiring that may need to be disconnected during this process. With the engine raised, you can now access the oil pump.

The next step is to unbolt the oil pump and carefully remove it, being cautious of any surrounding components. This process can be tricky, as you may need to blindly unbolt and remove the pump. Take your time and be gentle to avoid any damage.

With the oil pump removed, you can now access and replace the oil pan gasket. This is a challenging task, so ensure you have the necessary tools and patience before beginning.

When reinstalling the new oil pump, remember to include the funny-looking washer thingy, which is essential for keeping the pump shaft in place.

Using an adhesive on the gasket

When installing a fox body oil pan gasket, using an adhesive on the gasket can help ensure a tight seal and prevent leaks. However, it is important to use the correct type of adhesive and apply it properly.

Firstly, it is important to note that not all gaskets require adhesive. Some gaskets, such as the Fel-Pro® oil pan gaskets, are designed to be installed dry. Therefore, always refer to the manufacturer's instructions before applying any adhesive. If you are using a "paper type" or cork/rubber type gasket, an adhesive may be necessary.

If you decide to use an adhesive, choose a suitable product such as weather strip adhesive or gasket sealant. Apply the adhesive to the gasket itself rather than the engine block. This will help hold the gasket in place during installation and make it easier to remove in the future if needed. Be careful not to use too much adhesive, as excess material can get into the crankcase and oil galleys and cause engine damage.

Additionally, avoid using silicone adhesive on the gasket. Silicone will not adhere properly to the gasket and may cause issues. Instead, opt for a black sealer like Permatex #2, which does not harden and is specifically designed for oil pans. You can also use a combination of weather strip adhesive and a small amount of sealer for added security.

When applying the adhesive, follow the manufacturer's instructions for drying or curing time. Ensure that the gasket and engine surfaces are clean and free of debris before installation. Once the adhesive is in place, carefully position the gasket and then attach the oil pan, following the proper torque sequence for the bolts.

Reinstalling the oil pump

Next, carefully finagle the pan back into position. It is important to be cautious and not rush this step, as it can be a tight fit. Once the pan is in place, you can bolt it up. It is recommended to use the one-piece pan gasket, as this will make the process easier.

The oil pump driveshaft should also be reinstalled. It is suggested to use some gasket tacky stuff to keep the new oil pump seal in place. This will help keep everything secure while you work.

Finally, you can move on to reinstalling the oil pump driveshaft. It is important to ensure that the retainer cage on the pump shaft is in the correct position.

Frequently asked questions