1. Preparation is Key:
* Clean the surfaces: Thoroughly clean both the bumper and the body where the seal will be installed. Remove any rust, old sealant, paint chips, or debris. Use a wire brush, sandpaper, and degreaser as needed. A clean surface ensures proper adhesion.
* Inspect the bumper and body: Check for any damage to the bumper or body that might interfere with the seal's installation. Repair any dents or imperfections before proceeding.
* Gather your materials: You'll need the new seal, appropriate adhesive (often butyl rubber or urethane adhesive specifically designed for automotive applications), a putty knife or similar tool for applying the adhesive, and possibly clamps or weights to hold the bumper in place while the adhesive cures.
2. Applying the Adhesive:
* Follow adhesive instructions: The type of adhesive you use will dictate the application method. Some adhesives require a thin, even bead, while others may require a thicker application. Read the manufacturer's instructions carefully.
* Apply adhesive to the body: Apply the adhesive to the body's mounting surface where the bumper will sit, *not* directly to the bumper. This prevents squeeze-out from marring the bumper's finish.
* Consider adhesive placement: For a good seal, spread the adhesive evenly across the entire area where the bumper will contact the body.
3. Installing the Seal:
* Position the seal: Carefully position the rear bumper seal onto the adhesive-coated body surface. Make sure it's aligned properly and sits evenly along the entire length.
* Attach the bumper: Carefully attach the bumper to the body, making sure the seal is properly compressed between the bumper and the body.
* Use clamps or weights (optional): Depending on the adhesive and the bumper's weight, you may need to use clamps or weights to hold the bumper in place while the adhesive cures. This ensures a strong and even bond.
4. Curing and Finishing:
* Allow adequate curing time: Allow the adhesive to cure completely according to the manufacturer's instructions. This is crucial for a lasting seal. Rushing this step can lead to failure.
* Clean up excess adhesive: Once the adhesive has cured, carefully remove any excess adhesive that squeezed out from between the bumper and the body. A razor blade or plastic scraper can help with this.
* Inspect the seal: After the adhesive has fully cured, inspect the seal to ensure it's properly installed and there are no gaps or leaks.
Important Considerations:
* Type of seal: Different seals require different installation methods. Some seals are designed to be glued directly, while others may have a lip that fits into a channel in the bumper or body.
* Body condition: If your body has significant rust or damage, addressing this before installing the seal is vital for a successful and long-lasting installation.
* Professional help: If you're unsure about any aspect of this process, consider seeking professional help from a body shop or experienced mechanic. A poorly installed seal can lead to leaks and rust.
This guide provides a general overview. Always consult a 1969 Nova restoration manual or specific instructions for your chosen seal for the most accurate and detailed guidance. Remember, proper preparation and attention to detail are essential for a successful installation.
