How to Align the Balance Shaft on a Highlander?

[Felix]

Highlander balance shaft alignment method is introduced as follows: 1. Align the timing mark on the shaft sprocket with the copper-plated chain link. 2. Place the timing chain on the water pump drive sprocket. 3. Adjust the last chrome-plated chain link to align with the timing mark on the exhaust side balance shaft drive sprocket. 4. Balance shaft vibration principle: (1) During the engine's working cycle, the piston moves very quickly with highly uneven speed. (2) At the top and bottom dead center positions, the piston speed is zero, while reaching maximum speed at the midpoint between dead centers.