Parts for your 2014 Subaru Exiga

The Role of the Timing Belt in the 2014 Subaru Exiga

The 2014 Subaru Exiga is a versatile and practical vehicle known for its spacious interior and reliable performance. When it comes to engine maintenance, one component that often comes up is the timing belt. However, in the case of the 2014 Subaru Exiga, a timing belt is not used. Instead, this vehicle is equipped with a timing chain. Understanding why this is the case and what it means for the vehicle's maintenance can help owners keep their Exiga running smoothly for years.

So, why does the 2014 Subaru Exiga use a timing chain rather than a timing belt? The timing belt is traditionally a rubber belt that synchronises the rotation of the crankshaft and camshaft. This ensures the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes. Timing belts require regular replacement because over time, the rubber material can wear out, crack or even break. If a timing belt fails, it can cause serious damage to the engine, especially in interference engines where valve and piston paths can intersect.

Subaru switched to timing chains on many of their engines, including the ones found in the Exiga, because timing chains are made from metal and tend to be more durable and long-lasting. A timing chain generally lasts the entire life of the engine, which means Subaru Exiga owners typically do not have to worry about replacing this part as a routine maintenance item. This provides peace of mind and reduces the overall cost of ownership.

While timing belts are popular in many vehicles, Subaru's choice of timing chains means the 2014 Exiga benefits from a more robust and maintenance-friendly design. The timing chain is housed inside the engine, lubricated by engine oil, which helps to keep it running smoothly and prevents deterioration. This internal placement also protects the chain from external debris and environmental factors that can affect timing belts.

That being said, it does not mean the timing chain should be completely ignored. Over time, like any mechanical part, the timing chain can stretch or the tensioners and guides could wear out. This can lead to noise from the engine, such as a rattling sound, or affect engine performance. However, such issues usually arise only after very high mileage or if the engine oil is not changed regularly, causing poor lubrication of the chain mechanism.

Good maintenance habits are crucial to keeping the timing chain performing well. Regular oil changes using the right grade of engine oil recommended by Subaru are essential because clean, fresh oil reduces wear and tear on the timing chain and its components. Skipping oil services or using poor quality oil can speed up the degradation process and result in expensive repairs down the track.

When servicing the 2014 Subaru Exiga, technicians typically inspect the timing chain system if the vehicle has high mileage or if there are specific symptoms like unusual engine noise or misfiring. Unlike timing belts that require replacement every 100,000 kilometres or so, timing chains are more of a 'fit and forget' component but still need regular checks to ensure the tensioners and guides are in good shape.

If there is an issue with the timing chain or its associated parts, it is important to address it promptly. A worn timing chain or faulty tensioner can lead to timing problems that affect engine performance and fuel efficiency. In more severe scenarios, a failed timing chain can cause major engine damage which is a costly repair. Fortunately, such failures are relatively rare in the Subaru Exiga, provided the vehicle is properly maintained.

Another advantage of the timing chain over the timing belt is environmental resistance. Timing belts are prone to damage from oil leaks, heat, and other environmental factors, while timing chains are more resilient. This is especially beneficial in Australia's diverse climate where vehicles can be exposed to a range of conditions.

For Exiga owners who enjoy DIY servicing, it's worth noting that checking the timing chain condition is not as straightforward as inspecting a timing belt. The chain is buried inside the engine, which means it requires a professional mechanic with the right tools and expertise to look for wear or tension issues. This can mean higher labour costs if replacement or repair becomes necessary, so prevention through regular servicing is a smart move.

Overall, the use of a timing chain in the 2014 Subaru Exiga reflects Subaru's focus on durability and reducing maintenance costs for their customers. While you won't find a timing belt replacement schedule in the owner's manual, sticking to regular oil changes and attentive servicing will keep the timing chain performing well across many kilometres. This means fewer worries and more enjoyment behind the wheel of this spacious and reliable family vehicle.