If your timing chain breaks while the engine is running, it will immediately grind to a halt. As the camshaft spins, its lobes open and close the cylinder valves that allow fuel and air to mix for combustion. The timing chain is located at the end of the camshaft. In many cases, the water pump is also located under the timing chain cover and, for that reason, water pump replacement is often part of OEM scheduled timing chain services). It is protected by a plastic cover that must be removed to access the chain. The timing chain is affixed to the front of the engine in most cases (the right side in front-wheel drive vehicles), although this can vary. The timing chain (or timing belt on some smaller engines) coordinates this dance to ensure that valves open and close at the right time. Doing so requires a complex dance of valves and cylinders. To operate and provide motive power to the transmission and then the wheels, your car’s engine must combust fuel and air. However, did you know that your timing chain will also need to be replaced and if it fails before you do, it could seriously damage the engine? In this guide, we’ll take a closer look at timing chains, the wear and tear they undergo, and how to prevent them from failing. Chances are good you know that your engine oil, transmission fluid, and even brake fluid need to be changed periodically. ![]() ![]() Engine timing is one of the most critical yet poorly understood elements of maintaining a vehicle.
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