How do you set timing belt for a 1998 mercury mystique?

To set the timing belt on a 1998 Mercury Mystique, first, ensure the engine is at top dead center (TDC) on the first cylinder by aligning the timing marks on the crankshaft and camshaft pulleys. Remove the old timing belt and check the condition of the tensioner and pulleys, replacing them if necessary. Install the new timing belt, ensuring it is properly aligned with the timing marks and has the correct tension. Finally, rotate the engine by hand to verify that there are no obstructions and the timing is correctly set before reassembling the engine.