Honda Civic Clutch Replacement!! (Si)

Introduction

In this tutorial, you will learn how to replace the clutch in an 8th Generation Honda Civic Si (2006-2011 models). This step-by-step guide will walk you through the process of removing the old clutch and installing a new one, specifically a Competition Clutch Stage 4 six-puck ceramic clutch. Whether you're upgrading for performance or need to replace a worn-out clutch, this guide is designed to help you navigate the process with confidence.

Step 1: Prepare for the Clutch Replacement

• Gather necessary tools and equipment:
  • Jack and jack stands
  • Socket set (10mm, 12mm, 14mm, 17mm, and 36mm sockets)
  • Wrenches
  • Impact gun (optional)
  • Torque wrench
  • Transmission jack or cart
  • Brake cleaner
  • Grease
  • Clutch alignment tool
• Ensure you have a clean workspace and all necessary parts, including the new clutch kit.

Step 2: Remove the Air Intake Components

• Disconnect the mass airflow sensor.
• Remove the intake tube by:
  • Using a 10mm socket to remove hose clamps at both ends.
  • Unclipping any body clips holding the airbox.
  • Removing the 10mm bolts securing the airbox to the vehicle.
• Finally, remove the battery by:
  • Disconnecting the negative terminal first, then the positive terminal.
  • Unscrewing the battery mount.

Step 3: Disconnect the Transmission Components

• Remove the lower intake tube, disconnecting any electrical connectors.
• Unbolt and remove the transmission fluid temperature sensor.
• Access and remove the slave cylinder by:
  • Disconnecting two 12mm bolts.
  • Loosening the line mount to avoid draining brake fluid.
• Detach grounding straps and any other wiring connected to the transmission.

Step 4: Remove the Subframe and Axles

• Raise the car and support it with jack stands.
• Start with the driver's side axle:
  • De-stake the axle nut using a punch and hammer.
  • Remove the axle nut using a 36mm socket.
  • Disconnect the lower control arm and outer tie rod from the steering knuckle.
• Repeat the process for the passenger side axle.
• Unbolt and lower the subframe while ensuring that the steering rack is disconnected.

Step 5: Remove the Transmission

• Support the engine using a block of wood and a jack.
• Remove the transmission mount by unbolting all relevant 17mm nuts and bolts.
• Carefully lower the transmission, ensuring it is supported and aligned with the engine.

Step 6: Replace the Clutch

• Remove the old clutch assembly by unbolting the pressure plate and flywheel.
• Inspect the flywheel for damage; if necessary, take it to be machined.
• Install the new pilot bushing and ensure it is flush.
• Position the new flywheel and torque down the bolts to 90 ft-lbs using a crank pulley to prevent rotation.
• Clean the new pressure plate and clutch disc surfaces with brake cleaner to remove any protective oil.
• Align the clutch disc using the alignment tool and attach the pressure plate. Torque the pressure plate bolts to 19 ft-lbs in a star pattern.

Step 7: Reinstall the Transmission

• Reattach the clutch fork and throw-out bearing.
• Align the transmission with the engine and carefully slide it back in place.
• Secure the transmission mount and ensure everything is properly aligned.

Step 8: Reassemble the Subframe and Axles

• Reattach the subframe, making sure all bolts are secured and the steering rack is properly positioned.
• Reinsert both axles into the transmission and secure with axle nuts, torquing to 181 ft-lbs for Si models.
• Restake the axle nuts.

Step 9: Final Assembly and Clutch Adjustment

• Reconnect the battery and any remaining components in reverse order of removal.
• Adjust the clutch pedal free play to about half an inch by loosening the lock nut and adjusting the push rod.
• Reinstall any interior panels and ensure all electrical connections are secure.

Conclusion

You've successfully replaced the clutch in your Honda Civic Si. It's essential to double-check all connections and ensure that everything is securely fastened before taking your car for a test drive. Remember to adjust your clutch pedal for optimal performance. If you encounter any issues, refer back to this guide for troubleshooting tips. Happy driving!