
To align the timing chain on a Roewe 350, follow these steps: 1. Locate the small hole blocked by a white plastic plug at the lower right corner of the engine transmission exhaust manifold. 2. Remove the plug and insert an L-shaped iron bar of the same size as the hole. 3. Insert the iron bar into the small hole on the flywheel. 4. Ensure the two round holes on the camshaft are vertically aligned upwards to lock the camshaft in place. Taking the 2015 Roewe 350 as an example, it is a compact car with body dimensions of 4521mm in length, 1788mm in width, 1492mm in height, a wheelbase of 2650mm, a fuel tank capacity of 55 liters, and a curb weight of 1290kg.

Last time I helped a friend with the timing chain on their Roewe 350 at the repair shop, and the key is to follow the steps carefully: First, locate the top dead center position on the crankshaft, which is the specific marking point on the engine. Then, align the marks on the camshaft sprocket, ensuring the chain's colored links or notches match the gears. Manually rotate the crankshaft to check for synchronization, avoiding excessive force. Next, install the tensioner to ensure the chain is properly tensioned—too loose and it might slip or skip. It's best to have two people working together for this process, as doing it alone can lead to missing details. If the chain isn't aligned correctly, it can cause valve interference or ignition issues, leading to expensive repairs costing thousands. So, I recommend taking the manual to a professional shop and letting them adjust it with the right tools. Regular checks for chain stretch can prevent this problem; it's advisable to inspect it around every 80,000 kilometers—safety first, after all.

Although I'm not a professional mechanic, I've tinkered with many cars, and aligning the timing chain on the Roewe 350 is quite important. Simply put: first, rotate the crankshaft to a fixed point called the TDC mark, using a wrench to turn it slowly; align the notches on the camshaft with the colored marks or links on the chain; then secure the tensioner properly, making sure it's neither too tight nor too loose. When doing it yourself, it's easy to overlook the chain's tension. If it's not aligned correctly, the car might make a rattling noise when started, and the engine could even be ruined. Remember not to disassemble parts randomly—follow the manual step by step. It's best to find someone knowledgeable to help or take it directly to a repair shop where they have all the necessary equipment to save time and effort. Pay attention to engine noises while driving daily, and if anything sounds abnormal, stop and check it out.

If the timing chain is not properly aligned, the Roewe 350 may fail to start or worse. The steps are crucial: rotate the crankshaft to the specified top dead center mark; then align the positioning points of the camshaft sprocket and the chain; adjust the tensioner pressure after installing the new chain; finally, manually rotate it a few times to check synchronization. If the chain is stretched or worn, it will slip, and a new part must be replaced. DIY operation carries high risks, so it's recommended to have a mechanic handle it. Timely maintenance can prevent damage to expensive components like valves and pistons.


