Flywheel SPI Seal: Purpose, Change and Price

The flywheel SPI seal ensures that the flywheel is sealed to the rear of the crankshaft. This prevents oil from leaking into the clutch, which could damage the clutch. The SPI seal is suitable for rotating parts and can be matched to their rotation.

⚙️ What is the flywheel SPI seal used for?

Le joint SPI also called lip seal because it consists of a body, frame, spring and lip. It is specially adapted to rotating parts thanks to this edge that can match their rotation.

SPI gaskets get their name from Société de Perfectionnement Industriel, which created them. They are found on all rotating parts of your vehicle, including crankshaft.

The crankshaft is driven by the timing belt, which synchronizes its rotation with the camshaft, fuel pump and water pump. Its role is to convert linear motion into rotation.

Therefore, it is a rotating part: its tightness is ensured by the SPI seal. One of them is located at the back of the crankshaft, on the side flywheel... Therefore, we are also talking about the SPI flywheel seal.

The function of this SPI seal is to provide a seal between the crankshaft and the flywheel, which is pressed against the clutch and close to the gearbox. Thus, the flywheel SPI seal is designed to avoid leakage oil in the clutch.

🚘 Can I drive with a leaking engine flywheel SPI seal?

The role of the flywheel SPI seal is to seal it to the crankshaft. In the event of a leak, you risk damaging the clutch. You will also experience other symptoms such as:

• Un sliding sleeve and problems with shifting gears;
• from White smoke to the exhaust;
• One the smell of oil and / or oil leaks under the vehicle.

If you keep driving with this leak, the situation can quickly escalate. Too much oil leakage can lead to overheating of the engine, premature wear of its components, blocking of the crankshaft and failure of the clutch.

🔧 How to change the flywheel SPI oil seal?

If you notice an oil leak from the flywheel, it could be due to the SPI seal. To change it, it is necessary to remove the gearbox, clutch and engine flywheel. Consequently, it requires mechanical skill and considerable disassembly time.

Material:

• Tools
• Machine oil
• Joint SPI

Step 1: Remove the flywheel

You must access the flywheel by removing the gearbox and then the clutch. Then you still need to remove the flywheel itself. To do this, unscrew its fastening screws and remove. Be careful, this is a tough part!

Step 2: Replace the flywheel SPI seal

Remove the SPI seal from the flywheel, then clean the area. Lubricate the new SPI seal with a few drops of oil, then insert it into the seat. Tap the entire perimeter with a small hammer to insert it correctly.

Step 3. Assemble the flywheel.

Place the flywheel on the shaft and retract it onto the crankshaft. Tighten the mounting screws. Then reassemble the clutch and transmission in the reverse order of disassembly.

💰 What is the price of flywheel SPI seal?

The cost of the SPI flywheel oil seal itself is not very high. Count the most ten euros for the room. On the other hand, the cost of replacing the flywheel SPI seal is much more expensive as labor is required.

This takes into account the time required to remove the gearbox, clutch and flywheel. To replace the flywheel SPI seal, count minimum 300 €.

That's it, you know all about the SPI flywheel seal! As you can imagine, this is actually an oil seal, which is located at the back of the crankshaft. If a leak occurs, do not wait for it to be replaced, as you risk damaging the clutch.