![]() On the other hand, the timing belt is susceptible of being damaged by oil and coolant leaks, despite being in a different enclosure and isolated from the engine crankcase. The timing chain, being encased inside the engine, is practically invulnerable to any external agent. The only substance that could seriously affect a timing chain in a short time would be a poor quality engine oil. Wind, humidity, dust or sand can affect a vehicles performance with the passage of time.Īlthough it is true that all these variables can erode a timing chain, the timing belt is specially vulnerable to external factors. Which one is more resistant to external agents?Īpart from sheer mileage, there are many factors that can degrade an automobile and its components. Thanks to technological advances, they are now made with new materials that can last 100,000 or even 150,000 kilometers (60,000 or even 90,000 miles). Regarding timing belts: their durability is also outstanding. However, the car needs a correct general maintenance throughout the years for this promise to actually happen. With a few exceptions, almost all manufacturers state in their maintenance books that their cars’ timing chains are ‘lifetime’ : that means, this engine piece will outlast the vehicle itself. However, that does not mean it cannot degrade, or that replacing it is not advisable in some cases. Points for the timing chain! A car’s chain is designed to last forever. Eso sí, eso no significa que no se degrade o que no sea recomendable hacer un reemplazo en algunos casos. La cadena de distribución está pensada para que no tenga que ser sustituida nunca. Punto para la cadena, como no podía ser de otra forma. If you are ever in the position of needing to change a timing chain, the mechanic will need to disassemble more engines pieces, which translates into more man-hours and a substancial bill from the repair shop. Timing belt repairs are very affordable, even their entire replacement is less costly. However, the timing belt wins this round. In fact, the great majority of cars with this timing system will be sent to the scrapyard with the original timing chain they had the day they left the manufacturing plant. Therefore, we need to replace this piece at a certain mileage, which will be indicated by the manufacturer.Ī timing chain, on the other hand, does not need to be replaced as frequently. The rubber this engine component is made of will eventually degrade with use. Here’s the dilemma: a timing belt does need some maintenance. Now that we know how many timing systems there are, it is time to compare them: Which system is cheaper to replace? ![]() We are talking about electric cars, automobiles that run on an hydrogen cell and even Wankel-type combustion engines. ![]() Lastly, there are vehicles that have no timing system. Some modern allroad vehicles also make use of this timing system, since timing chains would have their lifetime greatly reduced due to dust and erosion exposure. We can find this timing system in older engines and motors for large-displacement vehicles.
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