How often should the Nissan Teana engine belt be replaced?

[VonMargaret]

Nissan Teana timing belt should be replaced every 80,000 to 100,000 kilometers. Function of timing belt: The main function of the engine timing belt is to drive the engine's valve train, ensuring that the intake and exhaust valves open and close at the appropriate times to allow normal air intake and exhaust in the engine cylinders. Timing belt replacement steps: Remove the valve cover, detach the crankshaft pulley, and take off the timing chain housing; rotate the crankshaft to align the first cylinder to top dead center, then tighten the crankshaft fixing screw to secure it. Rotate the intake and exhaust camshafts; there are grooves at the rear of the camshafts—align these grooves evenly and insert the specialized tool; remove the old chain and install the new one. The crankshaft pulley also lacks a keyway; during installation, align the round hole on the pulley with the groove on the chain housing.