How to Rebuild Your McLeod Rear Shock at Home

Rebuilding a McLeod [paid link] rear shock from Manitou is a task that requires precision and technical know-how, but with the right tools and a clear step-by-step guide, it’s possible to do it yourself at home. In this guide, we will walk you through the entire process of rebuilding your McLeod [paid link] rear shock, including disassembly, cleaning, inspection, reassembly, and testing. Follow these instructions carefully to ensure that your shock works like new.

Tools Required

  • Shock pump
  • Torque wrench [paid link]
  • 8mm and 10mm wrenches
  • T10, T25, and T30 Torx drivers
  • Oil seal driver
  • Clean rags
  • Manitou McLeod rebuild kit (oil seals, wipers, and new oil)
  • Fork oil (specific to the McLeod model)
  • Needle nose pliers
  • Cleaning solution (mild degreaser)
  • Grease (suitable for suspension components)
  • Safety gloves
  • Small plastic container (for storing removed parts)
  • Magnetic tray (optional but recommended)

Disassembly of the McLeod Rear Shock

Before starting the rebuild, it is important to ensure the shock is removed from the bike and fully depressurized. Be careful while handling the shock to avoid damaging its internal components.

  1. Remove the Shock from the Bike
    Use the appropriate wrenches to remove the shock from the frame. It’s essential to support the shock securely while disconnecting it. Make sure to note the orientation of the shock and the mounting hardware for easy reinstallation.
  2. Deflate the Shock
    Attach your shock pump and release any remaining air from the shock. Be sure to release the air slowly to avoid sudden pressure changes that could damage the shock.
  3. Remove the Air Can
    With the shock deflated, begin removing the air can by unscrewing the retaining bolts. The air can may require some force to separate, so gently tap it with a plastic mallet to loosen it if necessary. Once removed, store the bolts in a safe place.
  4. Take Off the Damper and Main Shaft
    Next, carefully remove the damper from the body of the shock. This step can be tricky, as the damper is often held in place with internal clips. Use a set of needle-nose pliers to remove the clips, taking care not to damage the components.

Cleaning and Inspection

Once you’ve disassembled the shock, it’s time to clean all components and inspect them for wear or damage.

  1. Clean the Shock Components
    Use a mild degreaser and clean rags to wipe down all parts of the shock. Ensure that all old oil is removed from the damper, main shaft, and air can. Be thorough, as any residual oil or dirt can affect the performance of your rebuild.
  2. Inspect for Damage
    Look for any signs of wear or damage, such as scoring, deep scratches, or dents in the metal components. Pay special attention to the air can and main shaft for any damage that could compromise the shock’s performance. If you notice any serious damage, you may need to replace the affected components with new ones from the rebuild kit.
  3. Check the Seals and Wipers
    Inspect the oil seals and wipers carefully. If they are damaged, cracked, or worn, replace them with the new seals and wipers provided in the McLeod rebuild kit. These seals are critical to the shock’s ability to maintain pressure and prevent leakage, so ensure they are in excellent condition before reassembly.

Reassembly of the McLeod Rear Shock

Once you’ve cleaned and inspected all components, it’s time to reassemble the shock.

  1. Install New Seals and Wipers
    Begin by installing the new oil seals and wipers onto the damper and main shaft. Use the oil seal driver to carefully press the seals into place, ensuring that they are seated correctly. Applying a light coating of suspension oil to the seals before installation can help them slide in more easily.
  2. Lubricate the Components
    Apply a thin layer of grease to all moving parts, including the damper and air can, to ensure smooth operation. Grease should be used sparingly, as too much can cause issues with performance. Avoid getting grease on the seals, as this can compromise their effectiveness.
  3. Reassemble the Shock Components
    Reinsert the damper and main shaft into the shock body, ensuring everything is aligned properly. Be sure to reinstall the internal clips that secure the damper, using your needle-nose pliers to attach them carefully.
  4. Install the Air Can
    Once the internal components are reassembled, reinstall the air can by aligning it with the shock body and tightening the retaining bolts. Tighten these bolts to the manufacturer’s recommended torque specifications using a torque wrench [paid link]. This ensures that the air can is secured correctly without over-tightening, which could damage the shock.

Oil Filling and Air Pressure

The next step involves refilling the shock with oil and adjusting the air pressure to ensure optimal performance.

  1. Fill the Shock with Oil
    Following the manufacturer’s guidelines for oil type and amount, refill the shock with the appropriate fork oil. Be precise in the amount you use, as too much or too little oil can affect shock performance. Ensure that the oil fills all the necessary chambers and covers the internal components thoroughly.
  2. Install the Air Valve and Set Pressure
    Once the oil is in place, reattach the air valve and set the correct pressure according to the specifications provided by Manitou for the McLeod rear shock. Use your shock pump to carefully adjust the air pressure. Start by setting it at the recommended baseline pressure and fine-tune it after testing the shock’s feel.

Reinstalling the Shock

After the shock is reassembled and the oil pressure is set, you can reinstall it onto your bike.

  1. Reinstall the Shock on the Frame
    Position the shock back into the frame’s mounting points, ensuring it is oriented correctly according to the manufacturer’s instructions. Use the appropriate wrenches to securely tighten the mounting bolts. Be sure not to overtighten the bolts, as this could cause damage to the shock or frame.
  2. Test the Shock
    Once the shock is reinstalled, conduct a series of tests to ensure it is functioning correctly. Gently compress the shock and check for any unusual resistance or noises that might indicate a problem. You can adjust the air pressure and rebound damping as necessary to dial in the shock for your riding style.

Troubleshooting Common Set-Up Issues

If your McLeod rear shock isn’t performing as expected after the rebuild, there are several common issues to consider.

  1. Poor Rebound Performance
    If you notice that the rebound is too fast or too slow, the issue may be related to oil levels or the internal damping components. Double-check the oil levels and inspect the damper to ensure the rebound circuit is functioning correctly.
  2. Air Pressure Leaks
    Air pressure leaks are a common issue after a shock rebuild. If you’re losing air quickly, check the seals to ensure they were installed correctly. Additionally, inspect the air valve for damage or leaks. Tighten the valve if necessary and ensure that it is seated properly.
  3. Unusual Noises
    If you hear creaking or popping noises during shock compression, this could indicate that the seals are not seated correctly or that there is debris in the shock. Perform a thorough inspection and clean all components again if needed.

Conclusion

Rebuilding your McLeod rear shock is a rewarding task that can greatly improve the performance of your bike. By following these detailed steps, you can ensure that your shock operates at peak [paid link] performance, providing a smoother ride and better control on your trail adventures. Regular maintenance and careful inspection of your shock components are key to extending the life of your suspension system and improving your overall riding experience.