Tools and Materials Needed:
- Replacement alternator for 1986 Nissan truck
- Socket wrench set
- Wrench set
- Screwdriver
- Electrical tape
- Safety glasses and gloves
Steps to Replace the Alternator:
1. Disconnect the Battery:
- Start by disconnecting the negative battery terminal using a wrench. This will help prevent any electrical accidents during the repair.
2. Locate the Alternator:
- The alternator is typically located on the front side of the engine, near the serpentine belt.
3. Remove the Serpentine Belt:
- Loosen the belt tensioner pulley using a wrench, then remove the serpentine belt.
4. Disconnect Alternator Wiring:
- Loosen the nuts or bolts holding the alternator's electrical connectors. Disconnect the wiring by removing the connectors. Make sure to take note of the wiring configuration for proper reattachment later.
5. Unbolt the Alternator:
- Use a socket wrench to loosen and remove the bolts holding the alternator in place. Ensure all mounting bolts are removed.
6. Remove the Alternator:
- Once the bolts are removed, gently lift the alternator out of its position. Be careful not to drop it.
7. Install the New Alternator:
- Position the new alternator in place and secure it with the mounting bolts you removed earlier. Tighten the bolts securely.
8. Reconnect Alternator Wiring:
- Reconnect the alternator's electrical connectors. Make sure the wiring is connected as it was before removal.
9. Reinstall the Serpentine Belt:
- Place the serpentine belt back onto the pulleys and adjust the belt tensioner pulley using a wrench. Ensure the belt is properly seated.
10. Reconnect the Battery:
- Tighten the negative battery terminal back onto the battery. Confirm that the battery is properly connected.
11. Test the Alternator:
- Start the engine and use a multimeter to check that the alternator is producing the correct voltage (usually around 14 volts).
Note: The provided steps are a general overview of the alternator replacement process. The exact steps may vary slightly depending on the specific model and trim of your 1986 Nissan truck. It's recommended to consult your vehicle's repair manual or seek professional guidance if you're unsure about any part of the process.
