Even then, the rattle in early-stage timing chain wear can be difficult to hear over the sound of other engine components. This is more prominent in certain types of engines, and in the early stages, it is almost undetectable from inside the cabin – you’re unlikely to hear it unless you’re outside the car, preferably with the hood open.
The most infamous sign that your timing chain is about to fail is a rattling sound coming from the engine.
Below, we’ll explore some of the most common signs of a worn-out timing chain. Understanding the signs and symptoms that might indicate your timing chain is ready to be changed is the key to preventing outright failure. In addition, chains can stretch over time and this can lead to them jumping teeth on the gears, which alters the timing of the engine and leads to a wide range of problems. These chains look very similar to bicycle chains and are made with similar links.Īll it takes is for a single link to break and the timing chain is useless. Timing chains are made of metal, but over time and through exposure to high heat and physical stress, they can suffer from wear and tear. Signs and Symptoms of a Worn-Out Timing Chain
#Signs of bad timing chain manual
Always refer to your owner’s manual or a trusted mechanic to ensure that you change the belt on time. High-performance engines put greater stress on their timing chains than lower-performance engines and will need more frequent replacements. In most instances, they are not designed to be replaced until your vehicle reaches 100,000 or 120,000 miles, although this varies dramatically from manufacturer to manufacturer and vehicle type to vehicle type. Timing chains will last for a very long time. How Often Should Timing Chains Be Changed?
Without a functional timing chain, there is not enough compression for the engine to operate. If the chain breaks as the engine is turning off, damage is less likely, but you will not be able to crank the engine again until the timing chain is replaced. Significant valve/piston damage will require costly repairs. It’s also likely that some valves will be bent as they contact the pistons (the timing chain prevents this from happening by keeping everything moving in time). 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.
#Signs of bad timing chain how to
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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