Timing Chain vs. Timing Belt (What’s the Difference?)
Many people are confused about the difference between a timing chain and a timing belt. This is understandable, since they both have essentially the same function. Both parts are found in a vehicle’s internal combustion engine. Their job is to keep the rotation of the camshaft and crankshaft synchronized.
The crankshaft drives the timing chain or belt, which drives the camshaft. From there, the camshaft controls the opening and closing of the engine’s valves. These valves allow air in so the combustion process can take place. That’s why the word “timing” comes before belt or chain.
Your car is equipped with a timing chain or a timing belt. What’s better? Which is worse? Below are the pros and cons of each component.
Timing belt
It was a replacement for the timing chain that existed at the time. The advantage of the timing belt is that it runs quietly and is very strong. Another advantage is its price. Due to its materials and simple construction, a timing belt is much cheaper to replace than a timing chain.
While parts cost less, labor costs to replace a timing belt are also less. Replacing a timing belt is not a DIY job, so you can expect to pay between $300 and $1,000 for labor, which typically includes replacing the water pump.
Like a timing chain, a broken timing belt can cause catastrophic damage to your engine. Therefore, it is important to adhere to the manufacturer’s recommended timing belt replacement interval. In most cases, this is between 60,000 and 100,000 miles; its lifespan is about half that of a timing chain.
Timing Chain
In fact, most timing chains last as long as the car itself. This means that with a timing chain, you can easily get 240,000 to 320,000 kilometers. At best, you will need to replace the plastic guides used to move the chain; these tend to wear out after 150,000 miles.
Timing chains are good and durable, but there are some things that bother you: The biggest nuisance is the noise that a timing chain makes. However, technology in newer vehicles is making timing chains just as quiet as engines with timing belts.
What’s more, it’s possible for a timing chain to break completely. If this happens, it will cause a lot of damage to your engine. If the timing chain breaks and becomes damaged, you may need to replace the entire engine. In this situation, it will be cheaper to replace the engine than to repair it.
What’s better?
If you want a specific vehicle, you should stick to the components (belt or chain) that the manufacturer uses in that engine. However, if you are more concerned about whether the vehicle uses a timing belt or chain, you should think carefully. If you’re someone who believes in and practices proper preventative maintenance, a timing belt is the best choice for you. This allows you to monitor the condition of the belt and replace it when necessary.
