Parts for your 2013 Subaru Outback

The Role of the Timing Belt on the 2013 Subaru Outback

When it comes to the 2013 Subaru Outback, many owners often ask about the timing belt because it's such an important component in many engines. However, the 2013 Subaru Outback does not actually use a timing belt. Instead, this particular model is fitted with a timing chain. Here's why that matters and what it means for maintenance.

The 2013 Subaru Outback is typically equipped with a 2.5-litre flat-four (also known as a "boxer") engine, or sometimes the 3.6-litre flat-six engine, depending on the variant. Both these engine options use timing chains rather than timing belts. This means no rubber belt has to be regularly replaced, which is often a concern and a maintenance cost in vehicles with timing belts.

So why does Subaru use timing chains in the 2013 Outback instead of timing belts? Timing belts are common in many smaller petrol engines, primarily because they're quieter and cheaper to manufacture. However, timing belts require regular replacement, usually between 90,000 and 160,000 kilometres, to avoid potentially catastrophic engine damage if the belt snaps.

On the other hand, timing chains are made from metal and are more durable. They are located inside the engine and lubricated with engine oil, which helps them last a lot longer than belts. In the case of the 2013 Subaru Outback, the timing chains are designed to last the lifetime of the engine under normal conditions. This makes timing chains an attractive choice for drivers who prefer less frequent servicing requirements and a more rugged engine setup.

While timing chains are generally more reliable, they are not completely maintenance-free. Over time, timing chains can stretch or suffer from wear in the guides and tensioners, which can lead to noisy operation and, if left unchecked, engine timing issues. However, these problems usually only appear beyond typical service intervals and high kilometre readings well above those expected for many owners.

For drivers of a 2013 Subaru Outback, it's good practice as part of routine service to have the timing chain inspected when the engine is opened up for other maintenance or if any unusual noises are heard from the front of the engine. Signs of timing chain wear can include rattling noises at start-up or rough running conditions. While chain failure is rare, attention to these early warning signs can prevent expensive repairs down the line.

Routine oil changes and using the correct quality engine oil are also crucial to maintaining the timing chain's condition. Because the chain relies on engine oil for lubrication, dirty or degraded oil can accelerate wear on the chain and its components such as guides and tensioners. Subaru recommends regular oil changes at intervals specified in the owner's manual, typically every 6,000 to 7,500 kilometres for Australian conditions, depending on driving habits and oil grade used.

Another maintenance item related to the timing chain is the tensioner. The tensioner keeps the chain tight and prevents it from slapping around or skipping teeth on the sprockets. If the tensioner or chain guides wear out, the chain can become loose. Even though replacements of tensioners and guides are uncommon in the 2013 Outback, if an owner hears knocks or rattles from the engine front, a mechanic should check the timing chain system components for wear or damage.

To keep things hassle-free, many Subaru Outback drivers simply stick to the recommended oil change schedule and periodic check-ups at their local service centre. Because timing chains typically last so long, unless a serious problem arises or the engine is subjected to extreme conditions such as severe neglect or extended overheating, there is rarely a need to replace the chain itself throughout the life of the vehicle.

In short, while the term "timing belt" might be on many people's minds when they think about engine maintenance, the 2013 Subaru Outback's use of a timing chain means that the typical timing belt replacement headache and expense does not apply. Keeping up with routine oil changes, listening for unusual engine sounds, and having the timing chain inspected if anything seems out of the ordinary will keep the engine running smoothly for years to come.

So for anyone owning or considering a 2013 Subaru Outback, it pays off to understand that the timing chain is a bit of a "fit and forget" part compared to traditional timing belts. That said, staying in tune with your servicing schedule and any sign of engine noise can save you from down-the-track repair costs and keep your Outback happily exploring whatever roads or trails you take it on.