How to Route the Generator Belt on Changan CS75?

[Maddox]

Changan CS75 belt routing method is to pass through the crankshaft, with the tensioner on the back side of the belt, loop over the camshaft, position, lock, and then tighten the tensioner. The timing belt plays a connecting role, linking the timing wheel on the engine cylinder head at the top and the crankshaft timing wheel at the bottom. Here is additional information: Timing Belt: The timing belt is a crucial component of the engine's valve system, ensuring accurate intake and exhaust timing by connecting to the crankshaft with a specific transmission ratio. The reason for using a belt instead of gears is that belts produce less noise, have minimal self-variation, and are easier to compensate. Clearly, the lifespan of a belt is shorter than that of metal gears, so it needs to be replaced regularly.

[VanBrandon]

Changing the alternator belt on my neighbor Lao Zhang's Changan CS75 was quite a challenge that day. The belt routing on this car is quite particular - the crankshaft pulley is at the bottom, the alternator at the upper left, and the AC compressor at the lower right. You have to first loosen the bolt on the tensioner pulley and remove the old belt starting from the crankshaft pulley. For installing the new belt, the sequence is: first wrap around the lower half of the crankshaft pulley, then diagonally up through the alternator pulley, down around the AC compressor pulley, and finally back to the starting point via the idler pulley and tensioner pulley. I took photos for reference when removing the old belt, but still got stuck several times during installation - the belt would slip if the tensioner wasn't adjusted properly. Later I discovered a trick: aligning with the marking grooves on the pulleys made the job much easier. You really need to be extra careful when doing it yourself - misaligned belts can damage other components.

[LeWeston]

My friend's Changan CS75 had a loose alternator belt, and we spent quite some time figuring it out. Although different engines may vary, the basic routing is similar. There are four main components involved: the crankshaft pulley is the starting point, the alternator pulley is on the upper left side of the engine, passing through the air conditioning compressor in the middle, and finally connecting back to the origin via the idler pulley and tensioner pulley on the right. Always disconnect the battery before removal or installation, and take photos to record the original routing. When installing a new belt, start from the crankshaft pulley, route it counterclockwise around the alternator pulley, diagonally across to the air conditioning compressor, then through the idler pulley to the tensioner pulley. The key is the tensioner pulley, which has an adjustment bolt—after installation, tighten it to the appropriate position and test by rotating. It's recommended to prepare a socket wrench; doing it yourself might be a bit challenging but can save you a few hundred bucks in labor costs.

[LaTimothy]

The CS75 belt routing is quite simple. First, loosen the tensioner pulley bolt and remove the old belt. The new belt installation sequence is as follows: start from the bottom of the crankshaft pulley, loop upwards around the alternator pulley, cross diagonally to the A/C compressor pulley, pass through the idler pulley, and loop back to the tensioner pulley. Remember two key points: install the belt with the inner side facing you, and finally adjust the tensioner pulley to tighten. The entire process can be completed in half an hour.

[LaMatthew]

My CS75 had its alternator belt replaced just two days ago. The installation path must be precisely memorized: the crankshaft pulley is the power source, connecting to both the alternator and the air conditioning compressor. The routing starts from the bottom of the crankshaft pulley, goes counterclockwise up to the alternator pulley, then diagonally down to the right around the air conditioning compressor, and finally connects to the tensioner pulley via the idler pulley to form a closed loop. Before replacement, be sure to mark the positions of each pulley with a marker pen, and avoid twisting the new belt during installation. When adjusting the tension, a 90-degree turn with the wrench is sufficient—too tight can damage the bearings, while too loose may cause slippage. Wear gloves when doing this job yourself, as the edges of the belt are very sharp.

[CassandraAnn]

There are tricks to routing the CS75 alternator belt. The crankshaft pulley is at the front of the engine. First wrap the belt halfway around the crankshaft pulley from below, then route it diagonally upward left to the alternator pulley. Next, loop it downward right around the AC compressor, and finally connect it to the tensioner pulley via the idler pulley. When installing, use a long-handle wrench to loosen the tensioner pulley for easiest operation. Pay attention to the belt routing - misalignment will cause wear and cracking within days. After installing a new belt, start the engine to test for noise; if abnormal sounds occur, shut down immediately and readjust. Recommended inspection every 60,000 km - replace if more than three cracks appear.