Parts for your 2016 Subaru Exiga

The Role and Maintenance of the Timing Belt on the 2016 Subaru Exiga

The 2016 Subaru Exiga is an interesting vehicle in terms of its engine design and component choices, especially when it comes to its timing system. Unlike many other Subaru models that commonly use timing belts, the 2016 Exiga is equipped with a timing chain rather than a timing belt. This distinction is important for owners who want to understand their vehicle's maintenance needs and why certain parts are or are not relevant.

So, why is a timing belt not fitted on the 2016 Subaru Exiga? The main reason comes down to the engine design. The Exiga uses Subaru's EJ-series flat-four engine, which Subaru has engineered with a timing chain system instead of a timing belt. Timing chains are made of heavy-duty metal links and run inside the engine, whereas timing belts are rubber belts that require periodic replacement. Timing chains typically last much longer than timing belts and often do not need routine changing under normal driving conditions.

Because of this design, a timing belt is not relevant or used at all on the 2016 Subaru Exiga. This means no timing belt replacement intervals or inspections apply. The advantage here is a reduction in maintenance tasks and costs, as timing chains are more durable and usually considered 'lifetime' parts. However, this does not mean timing chains are maintenance-free, but their servicing requirements differ significantly from timing belts.

Let's have a closer look at the timing chain, its purpose, and what Subaru Exiga owners should know about maintaining this critical component.

The timing chain plays a vital role in synchronising the crankshaft and camshaft rotations, ensuring that the engine's valves open and close at the correct times during each cylinder's combustion cycle. This precise timing is essential for the engine to run efficiently and smoothly. Even a slight mismatch can cause poor engine performance or serious damage.

On the 2016 Subaru Exiga, the timing chain is housed inside the engine and lubricated by engine oil, helping to reduce wear and extend its service life. This internal positioning also protects the chain from external damage and environmental factors that commonly affect timing belts, such as heat and debris.

Although timing chains outlast belts in many cases, they do experience some wear over time. Chain tensioners and guides can degrade, causing slack or noise. A loose or noisy timing chain might produce a rattling sound from the front of the engine, especially during cold starts. If left unchecked, a worn timing chain system can lead to engine mis-timing, reduced performance, or in worst cases, catastrophic engine failure.

Routine servicing of the 2016 Subaru Exiga includes monitoring these symptoms, even if the chain does not have a scheduled replacement interval like a timing belt would. Mechanics will inspect the timing chain tension and the condition of tensioner components during major services or if any unusual noises or performance issues are detected.

So how should owners approach timing chain maintenance on their Exiga? Here are some tips:

• Listen out for any rattling or unusual noises from the engine, particularly on cold mornings.
• Maintain regular oil changes using Subaru's recommended engine oil to ensure proper lubrication of the timing chain and its components.
• Have a qualified mechanic inspect the timing chain tensioner and guides during typical service intervals or if symptoms appear.
• Address engine warning lights promptly, as misfires or timing errors related to the chain can trigger faults.

One common misconception is that because timing chains do not have a fixed replacement schedule, they never need attention. While this may be true under ideal conditions, high-mileage vehicles or those subjected to hard driving can experience accelerated wear. Therefore, paying attention to the signals your Exiga provides and adhering to routine engine servicing will help avoid costly repairs down the track.

If a timing chain replacement or repair is ever required on the 2016 Subaru Exiga, it is a more involved job than swapping out a timing belt. The engine cover and multiple components must be removed, making it labor-intensive and more expensive. However, this is a relatively rare occurrence compared to the frequent replacement schedules associated with timing belts on other vehicles.

Overall, the timing chain system in the Subaru Exiga is a robust and reliable design choice by Subaru that reduces regular maintenance hassle. But careful attention to oil quality, regular service visits, and monitoring engine sounds are key to keeping this essential part performing well through the vehicle's life.

For owners, this means peace of mind knowing they are not faced with the usual timing belt replacement intervals, but still emphasising the importance of engine care to ensure the timing chain's longevity. A well-maintained 2016 Exiga timing chain will quietly keep the engine's rhythm in perfect sync for hundreds of thousands of kilometres, making it a dependable choice for families and commuters alike.