How to Align the Timing Mark on the New Santana?
2 Answers
To align the timing belt on the Volkswagen New Santana, rotate the intake and exhaust camshafts to a relatively horizontal position, and fix the crankshaft pulley to the front cover to complete the timing belt installation. Below are the functions of the timing belt in a car: 1. The timing belt plays a connecting role: the upper part connects to the timing wheel on the engine cylinder head, and the lower part connects to the crankshaft timing wheel; the timing wheel is connected to the camshaft, which has cams that contact the small rocker arms. The rocker arms generate pressure through the power transmitted by the timing belt, creating a lifting effect. 2. The lifting of the intake valve allows atomized gasoline to enter the cylinder, while the lifting of the exhaust valve allows exhaust gases to exit the cylinder. When the recessed parts of the camshaft (note: not the raised parts) simultaneously contact the small rocker arms, both the intake and exhaust valves close, compression ratio is generated, the distributor fires, and internal combustion begins to produce power.
Last time I worked on my colleague's new Santana's timing system, I felt the chain alignment was a bit more complicated than the older models. First, I had to remove the air filter box and the engine cover to locate the timing notch mark on the crankshaft pulley and align it with the engraved line on the oil pump housing. Then came the crucial part: using two wrenches to secure both camshafts, ensuring the groove marks on the camshaft gears were parallel and facing upward. At this point, the two triangular marks on the chain should fit perfectly into the gear notches. Remember, the tensioner must be locked with a positioning pin first, and the chain can only be installed after removing the pin. Finally, manually turn the engine two full rotations to check if the marks align—even a slight deviation means failure. It's best to remove the ignition coil fuse during the process to prevent accidental startup and hand injuries.
