Replacing the input shaft on a Citroën Evasion (also known as the Citroën Synergie in some markets) can be a complex task and requires a good understanding of the vehicle’s drivetrain and suspension systems. click here for more details on the download manual…..
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Here’s a detailed guide on how to perform this procedure, along with descriptions of every component involved. Please note that you should follow local laws and regulations regarding vehicle repairs, and if you’re not confident in performing this work, seek professional assistance.
### Tools and Materials Needed:
1. **Tools:**
– Socket set (metric)
– Wrench set (metric)
– Torque wrench
– Screwdrivers (flat and Phillips)
– Pliers
– Hammer
– Pry bar
– Gear puller (if necessary)
– Jack and jack stands (or a hydraulic lift)
– Wheel chocks
– Brake cleaner
– Oil pan or drain pan
– Torque specifications chart
2. **Materials:**
– New input shaft
– New seals and gaskets (if applicable)
– Transmission fluid
– Lubricant for bearings (if needed)
– Thread locker (if applicable)
### Safety Precautions:
– Always wear protective gear, including gloves and safety glasses.
– Ensure the vehicle is parked on a flat surface.
– Engage the parking brake and use wheel chocks to prevent rolling.
– Disconnect the battery to avoid electrical shorts.
### Step-by-Step Guide:
#### 1. Preparation:
– **Disconnect the Battery:**
– Use a wrench to remove the negative terminal from the battery to prevent any electrical issues.
– **Lift the Vehicle:**
– Use a jack to lift the front of the vehicle and support it securely with jack stands.
#### 2. Drain Transmission Fluid:
– **Locate the Drain Plug:**
– Under the vehicle, locate the transmission oil drain plug, typically found on the bottom of the transmission.
– **Drain Fluid:**
– Use a socket to remove the drain plug and allow the transmission fluid to drain completely into a pan.
#### 3. Remove the Transmission:
– **Disconnect Components:**
– Remove any components obstructing access to the transmission, such as the exhaust system, driveshaft, or subframe, depending on your model.
– **Disconnect Electrical Connectors:**
– Disconnect any electrical connectors related to the transmission.
– **Unbolt the Transmission:**
– Use the socket set to remove the bolts securing the transmission to the engine. Keep track of the bolts and their locations.
#### 4. Remove the Input Shaft:
– **Access the Input Shaft:**
– Once the transmission is removed, place it on a sturdy work surface.
– **Remove the Bellhousing:**
– If necessary, unbolt the bellhousing to access the input shaft. The bellhousing is the part of the transmission that connects to the engine.
– **Extract the Input Shaft:**
– Depending on the design, you may need to remove retaining clips or bolts holding the input shaft in place. Use a gear puller if the shaft is stuck.
– **Inspect Components:**
– Check the old input shaft and surrounding components for wear or damage before installing the new one.
#### 5. Install the New Input Shaft:
– **Prepare the New Shaft:**
– Lubricate the new input shaft with transmission fluid or appropriate lubricant.
– **Insert the Input Shaft:**
– Align the new input shaft with the transmission and carefully insert it into place. Ensure it is seated properly.
– **Reattach Components:**
– If you removed any clips or bolts, reinstall them to secure the input shaft in place.
#### 6. Reassemble the Transmission:
– **Reattach the Bellhousing:**
– If you detached the bellhousing, bolt it back onto the transmission, ensuring each bolt is tightened to the manufacturer’s torque specifications.
– **Reinstall the Transmission:**
– Lift the transmission back into place under the vehicle and align it with the engine. Secure it with bolts.
#### 7. Reconnect Components:
– **Reattach Electrical Connectors:**
– Reconnect any electrical connectors that were previously disconnected.
– **Reinstall Driveshaft
and Exhaust:**
– Reattach the driveshaft and exhaust system, ensuring all bolts are properly tightened.
#### 8. Refill Transmission Fluid:
– **Replace Drain Plug:**
– Reinstall the drain plug and tighten it securely.
– **Add Transmission Fluid:**
– Use a funnel to pour the appropriate type and amount of transmission fluid into the fill hole of the transmission.
#### 9. Final Checks:
– **Reconnect the Battery:**
– Reattach the negative terminal of the battery.
– **Lower the Vehicle:**
– Carefully remove jack stands and lower the vehicle.
– **Test Drive:**
– Start the vehicle and take it for a short test drive to ensure everything is functioning correctly. Check for leaks underneath the vehicle.
#### 10. Check fluid Levels:
– **Check Transmission fluid Level:**
– After the test drive, check the transmission fluid level again and add more if necessary.
### Conclusion:
Replacing the input shaft on a Citroën Evasion requires careful attention to detail and a solid understanding of Automotive repair. Always refer to the vehicle’s service manual for specific torque specifications and component locations. If you encounter any issues or are unsure about any steps, it’s advisable to consult with a professional mechanic.
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