Safety First:
* Block the wheels. Ensure the vehicle is safely secured on a level surface using wheel chocks.
* Disconnect the battery. This prevents accidental sparking.
* Wear safety glasses and gloves. Protect yourself from brake fluid and debris.
General Steps:
1. Locate the master cylinder. It's typically found on the firewall, behind the engine, and will be connected to the brake lines.
2. Bleed the brake system. Before removing the master cylinder, you need to bleed the brakes to remove any remaining fluid. This is crucial for preventing air from entering the system.
3. Remove the old master cylinder. This may involve disconnecting brake lines, removing mounting bolts, and detaching the push rod.
4. Install the new master cylinder. Ensure it is properly aligned and securely attached.
5. Re-connect the brake lines. Ensure the connections are tight and free of leaks.
6. Fill the master cylinder with brake fluid. Use the correct type of brake fluid for your vehicle, as specified in the owner's manual.
7. Bleed the brakes again. This removes any air that may have entered the system during installation.
8. Test the brakes. Drive slowly and gently to check for proper braking function.
Important Notes:
* Always consult your vehicle's owner's manual. This will provide detailed instructions and specific safety precautions for your 1986 Nissan truck.
* Use the correct type of brake fluid. Using the wrong type can damage your brake system.
* If you are not comfortable performing this task yourself, seek help from a qualified mechanic. Brakes are a critical safety system, and proper installation is essential.
Remember, these are general steps, and the process may vary depending on your specific truck model. Please refer to your vehicle's owner's manual or consult a professional for accurate and detailed instructions.
