Here's a general outline of the process:
1. Preparation:
* Gather Tools: You'll need a small flat-head screwdriver, possibly a small pick or similar tool, a socket set (likely 7/16" or 1/2" depending on the retaining nut size), possibly pliers, and potentially a ignition cylinder removal tool (available at auto parts stores). Having a shop manual specific to your 1970 Nova is highly recommended.
* Steering Wheel Position: Position the steering wheel so the ignition switch is in the "off" position.
2. Removing the Steering Column Shroud:
* This is usually held on by screws. Locate and remove these screws. The shroud is the plastic or metal cover around the steering column. You might need to remove the bezel around the ignition switch first.
3. Accessing the Ignition Cylinder:
* Once the shroud is off, you'll have a clear view of the ignition cylinder. You'll likely see a retaining nut or clip holding the cylinder in place.
4. Removing the Retaining Nut or Clip:
* This is where things get tricky. The nut or clip might be difficult to access and turn. You may need to use your socket and ratchet to carefully remove the nut (if there is one). Sometimes, there's a small retaining clip that needs to be carefully pried or released.
5. Removing the Ignition Cylinder:
* With the retaining mechanism removed, you should be able to pull the ignition cylinder out of the steering column. It may require a gentle but firm pull. Be careful not to damage the wiring or the ignition switch itself. Some ignition cylinders have a small tab or release that needs to be depressed while pulling. A specialized ignition cylinder removal tool can help with this step.
6. Replacing the Ignition Cylinder (If Applicable):
* If you're replacing the cylinder, make sure you get the correct replacement for your 1970 Nova. Installation is the reverse of removal. Be sure to securely tighten the retaining nut or clip.
Important Considerations:
* Wiring: Be extremely cautious of any wiring connected to the ignition switch. Do not disconnect any wiring unless absolutely necessary and only after carefully noting its position.
* Steering Column Lock: Be mindful of the steering column lock mechanism. Make sure it’s not engaged during the removal process to avoid any potential damage.
* Damaged Parts: If you encounter any resistance or damage during removal, stop and consult a repair manual or a qualified mechanic. Forcing parts can lead to further damage.
* Key: It's important to have your key readily available. You'll need it to ensure the ignition is in the "off" position during removal.
This is a general guide. The exact steps may differ slightly depending on the specific model of your 1970 Nova. Referencing a repair manual specific to your vehicle year and model is strongly recommended to ensure you have the most accurate and detailed instructions. If you're not comfortable performing this task, it's best to take your car to a qualified mechanic.
