1. Preparation is Key:
* Gather your tools: You'll need a variety of tools, including but not limited to: window installation tools (a specialized tool is highly recommended for proper installation and to avoid damage), a putty knife or similar tool for removing old sealant, a clean rag, safety glasses, rubber gloves, a utility knife, a wire brush, and possibly a heat gun (to soften old sealant).
* Obtain the correct window: Ensure you have the correct replacement window for your 1970 Chevy Nova. Year and model specificity is crucial. Get the correct window from a reputable parts supplier.
* Clean the window channel: Thoroughly clean the window channel in the door where the window will be installed. Remove any old sealant, rust, dirt, or debris. Use a wire brush to clean out any stubborn material. This step is crucial for a proper seal.
* Inspect the window channel: Check for any damage to the window channel itself. If there's significant rust or damage, it might need repair before installing the new window.
2. Window Installation:
* Apply sealant (bedding): Apply a bead of automotive-grade window sealant (specifically designed for automotive glass) to the window channel. Follow the manufacturer's instructions on the sealant. The sealant creates a watertight seal and holds the window in place.
* Insert the window: Carefully insert the window into the channel, ensuring it's seated properly. This often requires patience and finesse. Specialized window installation tools help to guide the window into place and prevent damage.
* Press firmly and evenly: Once the window is in place, firmly press it into the channel, ensuring it's evenly seated and the sealant makes proper contact. Again, specialized tools are very helpful here.
* Clean up excess sealant: Carefully remove any excess sealant that may have squeezed out.
3. Final Steps:
* Allow the sealant to cure: Allow the sealant to cure completely according to the manufacturer's instructions. This usually takes several hours, or even overnight.
* Check for leaks: Once the sealant is cured, check for any leaks around the window. If you find any leaks, you may need to re-seal the area.
* Reinstall door panel and trim: After the sealant is completely cured, reinstall the interior door panel and any exterior trim pieces.
Important Considerations:
* Professional Installation: This job can be challenging for even experienced mechanics. Consider having a professional automotive glass installer do the work to ensure a proper and leak-free installation. The cost of a poorly installed window that leaks could far outweigh the cost of professional installation.
* Safety: Wear safety glasses to protect your eyes from flying debris or sealant. Use caution with the utility knife and other sharp tools.
* Special Tools: The use of proper window installation tools is highly recommended to prevent damage to the window and the door.
This is a general guide. Specific instructions may vary slightly depending on the specific window and your vehicle. Consult a detailed repair manual specific to your 1970 Chevy Nova for the most accurate and comprehensive instructions. You might find detailed videos on YouTube that demonstrate the process, but remember to always prioritize safety and use the appropriate tools.
