The Manitou Mara Inline Trunnion [paid link] rear shock is a highly regarded suspension component known for its performance, adjustability, and smoothness. However, like any high-performance component, it can experience issues from time to time. In this guide, we will cover common problems that riders may encounter with the Mara Inline Trunnion [paid link] rear shock and provide step-by-step troubleshooting advice to help resolve these issues.
1. Shock Not Holding Air Pressure
One of the most common issues with the Mara Inline [paid link] Trunnion rear shock is a loss of air pressure. This can result in poor suspension performance and an uncomfortable ride.
Possible Causes:
- Damaged air seals: Over time, seals can wear out, causing air to escape [paid link].
- Faulty Schrader valve: If the valve is leaking, it can prevent the shock from holding pressure.
- Incorrect air pressure: Overinflating or underinflating the shock can cause performance issues.
Troubleshooting Steps:
- Inspect the air seals: Check for visible damage or wear around the shock body. If the seals appear cracked or broken, they may need to be replaced.
- Check the Schrader valve: Use soapy water to check for leaks around the valve. If bubbles form, replace the valve or reseat it properly.
- Recheck air pressure: Refer to the manufacturer’s recommended air pressure settings based on your rider weight and riding style. Use a high-quality shock pump to ensure accurate pressure.
2. Lack of Rebound Damping
If the shock feels too fast or uncontrollable during rebound, it might indicate a problem with the rebound damping system.
Possible Causes:
- Incorrect rebound setting: If the rebound knob is set too fast, the shock will rebound too quickly.
- Damaged rebound cartridge or oil: Over time, oil within the shock can degrade, affecting performance.
Troubleshooting Steps:
- Adjust rebound damping: Begin by adjusting the rebound knob to a slower setting and test the shock. Gradually increase the speed to find the ideal setting.
- Check for oil leaks: Inspect the rebound assembly for any signs of oil leakage. If oil is leaking, the shock may need to be serviced by a professional.
- Perform a damper rebuild: If the rebound still doesn’t feel right, it may be time for a damper rebuild. Over time, the internal components can wear, requiring a full service.
3. Suspension Feel Too Soft or Too Firm
If the Mara Inline [paid link] Trunnion rear shock feels too soft or too firm despite correct air pressure, it may be due to the compression settings or internal components that need attention.
Possible Causes:
- Incorrect compression settings: The shock may have too much or too little compression damping.
- Air spring issues: The air spring, which controls the overall firmness of the shock, could be malfunctioning.
- Damaged internal components: Worn-out components can impact the shock’s performance.
Troubleshooting Steps:
- Adjust compression damping: Use the compression dial to adjust low and high-speed compression. Start with the recommended settings and adjust based on your riding preference.
- Inspect the air spring: Check if the air spring is functioning properly by listening for air leaks and feeling for unusual resistance when compressing the shock.
- Check for internal damage: If adjustments do not resolve the issue, it may be time to have the shock serviced, as internal parts such as the damper or air piston may be worn or damaged.
4. Shock Bottoming Out or Sticking
Another issue that can occur is shock bottoming out (reaching the end of its travel too easily) or sticking during compression.
Possible Causes:
- Incorrect sag setup: If the shock sag is too deep or too shallow, it can cause bottoming out or reduced sensitivity.
- Lack of lubrication: The shock’s moving parts may need more lubrication, particularly if the shock has been used extensively.
- Damaged internal parts: Worn seals or damaged bushings can cause friction or limited movement in the shock.
Troubleshooting Steps:
- Check sag setup: Measure the sag and adjust the air pressure or compression to achieve the correct sag. Ideal sag is typically 25-30% of total shock travel.
- Lubricate the shock: Use an appropriate suspension lubricant to lubricate the shock’s shaft and seals. Make sure to follow the manufacturer’s guidelines for lubrication intervals.
- Examine the internal components: Inspect the bushings and seals for damage. If they appear worn, replacement may be necessary.
5. Excessive Noise from the Shock
Unusual noises such as squeaking, clunking, or knocking sounds can often be a sign of problems with the shock.
Possible Causes:
- Improperly tightened hardware: Loose mounting bolts or hardware can lead to noise during suspension movement.
- Dirt or debris in the shock: External contaminants may enter the shock body, causing friction and noise.
- Worn bushings: The bushings inside the shock eyelets may be worn, causing knocking sounds.
Troubleshooting Steps:
- Tighten all hardware: Ensure that all mounting bolts are correctly torqued according to the manufacturer’s specifications.
- Clean the shock: Remove any dirt or debris from the shock, particularly around the eyelets and seals. Use a clean cloth and mild soap solution to wipe the shock clean.
- Check the bushings: Inspect the bushings for wear or damage. If needed, replace the bushings or the entire eyelet assembly.
6. Shock Not Responsive to Adjustments
If the shock does not respond [paid link] to adjustments made via the compression, rebound, or air pressure settings, this could indicate a deeper issue.
Possible Causes:
- Air pressure issues: Even if the shock is holding air, it may not be at the correct level for your weight and riding style.
- Damaged adjustment controls: The knobs or dials used for adjusting compression or rebound might be faulty or have become disconnected from the internal components.
- Internal failure: An internal failure within the shock’s damper or air spring could prevent it from functioning properly.
Troubleshooting Steps:
- Recheck air pressure: Ensure that the air pressure is set correctly. Use a reliable shock pump and recheck multiple times.
- Inspect the adjustment controls: Check that the adjustment knobs are turning smoothly and are connected to the correct components inside the shock.
- Consult a professional mechanic: If adjustments still do not affect the shock performance, it is likely that internal components need to be inspected and serviced by a qualified technician.
By following these troubleshooting steps, you can effectively address many common issues with the Manitou Mara Inline Trunnion rear shock. Regular maintenance, proper setup, and timely repairs are key to ensuring your shock performs at its best for every ride.