Removing Oil Pan On 2000 Subaru: Step-By-Step Guide

Removing the oil pan from a 2000 Subaru Outback can be a challenging task, but with the right tools and knowledge, it is certainly achievable. Before beginning, it is important to note that there are 14 bolts securing the oil pan in place, with four of them located at the back, which can be particularly difficult to access. To remove these bolts, you may need to use a combination of 1/4 extensions, a wobble, and 12 and 14mm tools. Additionally, you will need to lift the engine to gain access to these bolts. This can be done by removing the motor mounts and using a jack to lift the engine. It is also recommended to remove the intake and radiator hoses, as they may not provide enough articulation for the engine to be raised.

Once all the bolts are removed, the next step is to break the gasket seal. This can be done by using a flat paint scraper or a screwdriver to wedge between the engine block and the pan. Tapping the paint scraper with a mallet can help break the gasket seal. Alternatively, lightly striking the side of the oil pan can also help break the seal. It is important to be careful during this process to avoid damaging the pan, especially if it is being reused.

Removing the oil pan

Step 1: Prepare the Car

Jack up the car and place it on jack stands to give yourself adequate workspace under the vehicle. You will also need to drain the oil from the pan.

Step 2: Remove the Engine Mount Nuts

Locate the 14mm engine mount nuts under the car, behind the sway bar. Use a 14mm socket to remove these nuts.

Step 3: Lift the Engine

Place a jack and a plank of wood under the transmission, below the axles, to lift the engine. Alternatively, you can use the factory exhaust to lift the engine, but this gives you less workspace.

Step 4: Remove the Exhaust Manifold (Optional)

Removing the exhaust manifold is not necessary, but it will give you more room to work. If you choose to remove it, be sure to unplug the 02 sensors and remove the portion of the exhaust that is in your way.

Step 5: Remove the Dipstick Tube

Use a pair of pliers to remove the dipstick tube. Be careful not to crush the tube, as there are two o-rings inside that can be difficult to remove.

Step 6: Remove the Oil Pan Bolts

All the bolts on the oil pan are 10mm. They can be removed in any order. There are four bolts at the back of the oil pan that are particularly difficult to access. You will need a universal joint, extensions, and a wobble extension to reach these bolts.

Step 7: Break the Gasket Seal

With all the bolts removed, the oil pan is still held in place by the gasket seal. Use a flat paint scraper or a screwdriver to wedge between the engine block and the pan. Tap the scraper or screwdriver with a mallet to break the seal, being careful not to damage the mating surface. Alternatively, you can lightly strike the side of the oil pan to help break the gasket free.

Step 8: Clean the Mating Surfaces

Use a gasket remover tool, razor blade, or wire brush to clean the old gasket material from both the oil pan and the engine block. The surfaces must be very clean and smooth before you install the new pan.

Step 9: Apply Silicone to the New Pan

Apply a small bead of silicone to the new oil pan, being careful not to use too much, as it can contaminate the oil.

Step 10: Install the New Oil Pan

Quickly start a few bolts on all four sides of the pan to hold it in place, then run in the rest of the bolts with a ratchet. Be sure not to over-tighten the bolts, as they can easily strip or break.

Step 11: Reinstall the Dipstick Tube

If your motor has some miles on it, it is a good idea to install fresh seals on the dipstick tube. Line up the tube to the pan and give it a strike with a rubber mallet to pop it into place.

Step 12: Fill the Engine with Oil and Check for Leaks

Fill the engine with oil and start it for 5-15 seconds, then turn it off and check underneath the car for any leaks. If there are no leaks, start the engine for an extended period and take the car for a short drive to further check your work.

Lifting the engine

Preparation:

Before lifting the engine, gather the necessary tools, including an engine hoist or car jack, heavy chains, and a 3/8-inch ratchet and socket set. Ensure you have a clear and level surface to work on, and place the vehicle in neutral or park with the parking brake engaged.

• Open the hood and locate the middle of the engine. Drape the chains across the engine in an "X" shape, forming a secure base for lifting.
• Identify a removable bolt on the engine, such as one on the intake manifold or exhaust manifold, located near the end of one of the chains.
• Remove the bolt using a wrench or ratchet and socket. Place the chain between the bolt hole and the object it was bolted to, then reinstall the bolt, securing the chain. Repeat this process for the other chain, creating two secure attachment points.
• Adjust the engine hoist or car jack to an appropriate weight setting for your engine. Refer to the weight markings on the hoist or consult a mechanic for guidance.
• Attach the hook on the arm of the hoist or jack to the middle of the engine, ensuring the chains are securely connected.
• Slowly lift the engine, paying close attention to any attached components that may need to be detached or adjusted.
• Raise the engine approximately 2 inches or as needed to access the oil pan bolts. This may require detaching the intake and removing radiator hoses, as they may not articulate sufficiently during the lift.

Safety Precautions:

When lifting the engine, always err on the side of caution. If using an old chain, be cautious as it could break and drop the engine. Ensure the lifting equipment is securely attached and double-check all connections before proceeding. Always work on a level surface and take necessary safety measures, such as wearing protective gear and using jack stands for stability.

By following these steps, you can safely lift the engine of your 2000 Subaru Outback to access the oil pan for maintenance or repairs. Remember to consult a professional mechanic if you have any questions or concerns during the process.

Removing the radiator hoses

To remove the radiator hoses of a 2000 Subaru Outback, you will first need to lift the engine. This is because the radiator hoses are not long enough to allow for the engine to be raised without detaching them.

To lift the engine, you will need to remove the two lower 14mm engine mount nuts and one bolt for the pitch stopper. Once the engine is lifted, you can then remove the radiator hoses.

It is worth noting that, as suggested by one mechanic, this could be a good opportunity to change the coolant and add Subaru's required coolant conditioner for the engine.

When it comes to replacing the radiator hoses, you will want to source a new hose that is made specifically for your 2000 Subaru Outback. OEM Subaru radiator hoses are exact-fit hoses that are the perfect length, with the correct opening sizes, and are made from tough, heat-resistant materials.

You can find a range of OEM Subaru radiator hoses online, with various retailers stocking different options. Be sure to check the part number and compatibility before purchasing.

Removing the exhaust manifold

To remove the exhaust manifold from a 2000 Subaru, you will need to remove part of the exhaust, unplug the 02 sensors, and unbolt the motor mounts from the frame. You may also need to lift the engine a little to access the back bolts on the oil pan.

It is also important to note that motor mount bolts may be rusted, so it is recommended to soak them in PB Blast or a similar penetrant and have nut/bolt extractor sockets on hand.

• Remove the heat shield from the O2 sensor. This can be challenging, and you may need to use a wrench or tin snips to cut a slot in the heat shield to make it easier to remove.
• Disconnect the O2 sensor.
• Remove the bolts securing the exhaust manifold to the turbocharger. These bolts may be difficult to reach, and you may need to use a wrench or screwdriver to access them.
• Loosen the bolts connecting the exhaust manifold to the up-pipe or turbo. This will allow for more wiggle room when removing the manifold.
• Remove the exhaust manifold. You may need to use a pry bar or jack stand to help lift and remove the manifold.
• Inspect the studs and replace any that are rusted. Also, replace any gaskets and nuts that show signs of wear or damage.
• When reinstalling the exhaust manifold, start one side first, getting one loose nut on, then move to the other side. Tap the manifold gently with your palm to help it align and seat properly.
• Torque all bolts and nuts to the specified values.

It is important to take your time and work carefully when removing and installing the exhaust manifold to avoid damaging any components or creating leaks.

Cleaning the oil pan

To clean the oil pan of a 2000 Subaru, you will first need to remove it from the car. This will involve lifting the engine and removing the bolts attaching the oil pan.

Once the oil pan is removed, there are several methods you can use to clean it. Firstly, you can use a scraper, wire wheel, and brake cleaner to remove any built-up residue. Alternatively, you can soak the oil pan in hot water and dish soap, then scrub it with a brush. Repeat this process until the pan is clean. Another option is to use a degreaser or oven cleaner, followed by a high-pressure wash with soapy water. If you have access to it, media (sand) blasting is also an effective method for cleaning an oil pan, followed by a wash with soapy water to remove any residual grit.

It is important to note that some of these methods may not be suitable for your specific situation, depending on the condition of your oil pan and the resources available to you. Always exercise caution when working with chemicals and power tools, and be sure to dispose of any waste oil properly.

Frequently asked questions