1. Remove the upper timing belt cover.
2. Locate the crankshaft pulley and the camshaft pulley. The crankshaft pulley is located at the bottom of the engine, while the camshaft pulley is located at the top.
3. On the crankshaft pulley, you will see a small notch. This notch must line up with the pointer on the timing belt cover.
4. On the camshaft pulley, you will see two small holes. These holes must line up with the two pins on the timing belt.
5. If the marks are not lined up, you will need to turn the crankshaft pulley until they do. You can do this by using a wrench to turn the bolt on the crankshaft pulley.
6. Once the marks are lined up, you can install the new timing belt. Make sure that the timing belt is properly tensioned before you install the upper timing belt cover.
Here are some additional tips for resetting the timing marks on a Peugeot 306 1.8:
* If you are not confident in your ability to perform this repair, you can take your car to a qualified mechanic.
* Make sure that you have the correct tools for the job. You will need a wrench, a screwdriver, and a timing belt tension gauge.
* Follow the instructions carefully to avoid damaging your engine.
