How do you change timing belt on 1985 MAZDA 626?

To change the timing belt on a 1985 Mazda 626, first, disconnect the negative battery cable and remove any components obstructing access to the timing cover. Align the timing marks on the crankshaft and camshaft, then remove the timing belt tensioner and the old belt. Install the new timing belt, ensuring proper alignment with the timing marks, then reattach the tensioner and any removed components before reconnecting the battery. Always consult a repair manual for specific torque specifications and procedures.