Replace Timing belt engine 1HZ Toyota

Here's a general outline of the steps involved in replacing a timing belt on a Toyota 1HZ engine. Keep in mind that this is a simplified overview, and it's important to consult the appropriate service manual or repair guide for your specific vehicle model for detailed instructions.
1. Prepare the vehicle: Park the vehicle on a level surface and engage the parking brake. If necessary, raise the front of the vehicle using a jack and support it securely with jack stands.
2. Remove the necessary components: Depending on your vehicle model, you may need to remove the fan shroud, radiator, and any other components obstructing access to the timing belt cover. Follow the instructions in the service manual to remove these components safely.
3. Align the timing marks: Rotate the crankshaft clockwise using a socket wrench until the timing marks on the crankshaft pulley align with the marks on the engine block. Similarly, align the timing marks on the camshaft(s) with the marks on the camshaft gear(s).
4. Remove the old timing belt: Loosen the tensioner and remove the old timing belt from the pulleys. Take note of the belt routing and any alignment marks for reference during installation.
5. Install the new timing belt: Install the new timing belt onto the pulleys, following the proper routing and alignment marks. Make sure the belt is properly tensioned, as per the specifications in the service manual. If necessary, use a timing belt tensioner tool to achieve the correct tension.
6. Double-check the timing marks: Rotate the crankshaft two complete revolutions clockwise and recheck the alignment of the timing marks. Ensure that all the marks are still aligned correctly.
7. Reassemble the components: Reinstall any components that were removed to access the timing belt. Make sure all bolts and fasteners are tightened to the specified torque settings.
8. Refill and bleed the coolant system (if necessary): If you had to drain the coolant, refill the system with the appropriate coolant and follow the bleeding procedure outlined in the service manual.
9. Test the engine: Start the engine and listen for any unusual noises. Verify that the engine runs smoothly and that the timing is correct.
It's important to note that the above steps are a general guide, and the specific procedure may vary depending on your Toyota vehicle model. Therefore, always refer to the service manual or repair guide for detailed and accurate instructions tailored to your particular vehicle.