Tools and Supplies Needed:
1. Basic Hand Tools: Sockets, Wrenches, Pliers, Screwdrivers, etc.
2. Timing Belt Changing Kit: Includes new timing belt, idlers, and tensioners.
3. Torque Wrench
4. Engine Hoist or Jack
5. Fluid Drain Pan
6. Coolant
7. Rags and Cleaners
Step-by-Step Guide:
1. Preparation:
- Park the vehicle on a level surface and engage the parking brake.
- Allow the engine to cool down completely.
- Disconnect the negative terminal of the battery to prevent any electrical accidents.
2. Remove Accessories:
- Remove the air cleaner assembly and any other components that may obstruct access to the timing belt area.
- Drain the coolant by opening the drain plug on the radiator.
3. Remove Timing Belt Cover:
- Locate the timing belt cover on the front of the engine. It is usually held in place by several bolts.
- Remove the bolts and carefully pry open the cover to expose the timing belt and related components.
4. Release Tensioner:
- Locate the timing belt tensioner. It is a spring-loaded mechanism that maintains tension on the timing belt.
- Use a wrench to loosen or remove the tensioner bolt, allowing the tensioner to relax and release the tension on the timing belt.
5. Remove Timing Belt:
- Once the tension is released, you can remove the old timing belt by slipping it off the sprockets.
- Set the removed belt aside for reference when installing the new one.
6. Inspect Components:
- Check the condition of the sprockets, idlers, and tensioner. Replace any worn or damaged components as needed.
7. Install New Timing Belt:
- Position the new timing belt around the sprockets, aligning it correctly with the timing marks on the sprockets.
- Make sure the belt is seated properly on all the pulleys.
8. Tension the Belt:
- Rotate the tensioner to apply the correct tension to the timing belt. Follow the recommended specifications provided in the vehicle's service manual.
- Tighten the tensioner bolt to secure the tension in place.
9. Reinstall Covers and Components:
- Reinstall the timing belt cover, air cleaner assembly, and any other components that were removed.
10. Fill the Coolant:
- Refill the coolant reservoir to the proper level.
11. Reconnect Battery:
- Reconnect the negative terminal of the battery.
12. Start the Engine:
- Start the engine and let it run for a few minutes.
- Check for any unusual sounds or irregularities.
- If everything seems fine, turn off the engine and ensure that there are no leaks around the timing belt area.
13. Test Drive:
- Take the Land Cruiser for a short test drive to ensure that the timing belt replacement was successful.
Please note that this is just a general overview, and the actual procedure may vary depending on the specific model and year of your Land Cruiser. Refer to the vehicle's service manual for detailed instructions and specifications before attempting this task.
