Parts for your 2017 Toyota Hiace

Understanding the Role of the Timing Belt on the 2017 Toyota Hiace

The 2017 Toyota Hiace is a reliable workhorse, designed to handle everything from trades to family duties with ease. One question that often comes up is whether this model uses a timing belt or a timing chain, and what that means for maintenance. For the 2017 Hiace, it's important to know that Toyota equipped it with a timing chain, not a timing belt.

So why isn't a timing belt used on the 2017 Toyota Hiace? Well, timing chains and belts both serve the crucial function of synchronising the crankshaft and camshaft, ensuring that the engine's valves open and close at precisely the right time during each cylinder's intake and exhaust strokes. While timing belts are made of rubber with fibres for strength and need replacing periodically, timing chains are made of metal, very much like a bicycle chain, and are designed to last the life of the engine under normal driving conditions.

In the case of the 2017 Toyota Hiace, the manufacturer opted for a timing chain due to its durability and low maintenance requirements. This choice aligns with the Hiace's role as a commercial vehicle where reliability, longevity, and reduced downtime are key priorities. Timing chains are generally less prone to sudden failure than belts, which is important for vehicles that may be in constant use and cover high mileage regularly.

Because the Hiace uses a timing chain instead of a timing belt, there's no need to schedule replacement of this component as part of the usual servicing. Many drivers appreciate this because timing belt replacements can be costly and involve significant labour, often requiring removal of several engine components. Timing chains, housed within the engine and lubricated by engine oil, benefit from a sealed environment that helps keep dirt and debris away, further extending their lifespan.

Although timing chains are more durable, that does not mean they are maintenance-free. The chain operates under constant strain and relies on proper oil circulation to stay lubricated and tensioned correctly. Toyota's design includes tensioners and guides that help maintain the correct tension on the chain, preventing it from slipping or jumping teeth on the sprockets, which could cause engine timing issues.

Regular oil changes are therefore critical for keeping the timing chain in top shape. Using the right grade of engine oil and changing it at recommended intervals helps keep the chain and its associated components well lubricated and functioning smoothly. Neglecting oil changes can lead to premature wear of the chain and the tensioners, which over time may cause noise or, in worst cases, engine timing faults.

If a Hiace driver begins to hear unusual rattling or ticking sounds coming from the engine, especially on start-up or at idle, it could be a sign that the timing chain tensioner isn't operating correctly or that the chain itself is experiencing wear. It is wise to have the vehicle inspected by a Toyota specialist in such cases to prevent potential engine damage.

When it comes to servicing the 2017 Toyota Hiace, the timing chain itself generally does not require routine replacement like a timing belt would. Instead, focus should be on maintaining good oil quality and following Toyota's recommended service schedule. This includes timely oil and filter changes, as well as regular inspection of the engine to catch any early warning signs of wear.

In some rare instances, if the vehicle has been very high mileage or subjected to poor maintenance practices, the timing chain and tensioner components might eventually need repair or replacement. However, these cases are uncommon and usually happen after many years or hundreds of thousands of kilometres. Toyota's robust engineering makes the Hiace well-suited to handle heavy work with minimal fuss in this area.

In short, the choice of timing chain over timing belt in the 2017 Toyota Hiace means that owners can enjoy a durable, low-maintenance setup that helps keep their van on the road with less hassle. While it's true that timing chains aren't totally neglect-proof, sticking to regular servicing and oil changes will go a long way toward ensuring the engine's timing system remains reliable for years to come.

If you own a 2017 Hiace or are considering one for your work or family needs, it's helpful to keep this information in mind so you know what parts to expect and what maintenance items to prioritise. The timing chain is one less thing to worry about compared to cars that use timing belts, giving peace of mind and helping to keep running costs down over the lifetime of the vehicle.