How to Align the Timing Belt on a Toyota Vios?

[DiLawson]

Toyota Vios timing belt alignment method: 1. Rotate the engine crankshaft to position the No. 1 cylinder piston at top dead center and secure it; 2. Align the timing mark on the camshaft gear with the timing mark on the chain and fix it; 3. Install the crankshaft drive sprocket, ensuring the timing marks on the chain and sprocket are in the same position; 4. Finally, verify that the three timing marks on the timing chain correspond precisely with two marks on the camshaft sprocket and one mark on the crankshaft sprocket. A broken engine timing belt will prevent normal engine rotation and severely affect engine operation, potentially damaging valves and pistons.