Parts for your 2017 Lexus Is-Timing belt kit

Timing Belt Kit and the 2017 Lexus IS: What You Need to Know

When it comes to the 2017 Lexus IS, the timing belt kit is actually not a relevant or used part. This might sound surprising if you're familiar with older vehicles or certain engines that rely heavily on timing belts, but the 2017 Lexus IS does things a little differently. Instead of a timing belt, this model uses a timing chain. The difference is important to understand, especially for anyone maintaining or servicing this luxury sedan.

So why doesn't the 2017 Lexus IS have a timing belt or a timing belt kit? Simply put, this model's engine is designed with a timing chain system. Timing chains serve the same basic purpose as a timing belt, which is to synchronise the crankshaft and camshaft(s) so the engine's valves open and close at the right times during each cylinder's intake and exhaust strokes. However, timing chains are made from metal and are located inside the engine with oil lubrication, making them significantly more durable than timing belts, which are typically made from rubber or synthetic materials.

Because the Lexus IS uses a timing chain, you won't find a timing belt kit stocked for this vehicle. A timing belt kit usually consists of the timing belt itself, tensioners, idler pulleys, and sometimes a water pump, all of which are replacement parts required to maintain the belt's performance and prevent engine damage. Timing belt replacement is typically a critical scheduled maintenance task in vehicles that use belts, often recommended every 90,000 to 120,000 kilometres or so, depending on the car and manufacturer guidelines.

With the 2017 Lexus IS's timing chain, maintenance requirements are quite different. Timing chains are designed to last for the life of the engine in most cases, often over 200,000 kilometres, and usually do not need routine replacement. This makes the vehicle's engine maintenance a bit easier since timing chain replacement is a much more involved and expensive job than changing a timing belt.

That said, timing chains are not completely maintenance-free. While they don't need replacing as frequently as timing belts, timing chains do need proper engine oil and regular servicing to make sure they remain in good condition. Since the chain relies on good lubrication to reduce friction and prevent wear, regular oil changes using the right grade of lubricant are crucial. Neglecting oil changes or using substandard oil can lead to premature chain stretching or failure.

If the timing chain or its components such as tensioners or guides wear out or become loose, the engine may produce noticeable symptoms. Common signs include rattling noises from the front of the engine, poor engine performance, misfires, or the check engine light coming on. Early diagnosis and repair are important to prevent costly engine damage.

Here's why the use of a timing chain matters for Lexus IS owners in Australia. Because the timing chain is more durable and generally outlasts the vehicle's lifespan, owners get the peace of mind of fewer major engine maintenance tasks. But it also means sticking to a good oil change schedule and listening out for any warning signs when driving. While you won't be looking for a timing belt kit during servicing, the basic principles of preventative maintenance remain.

In summary, the 2017 Lexus IS does not use a timing belt kit simply because it relies on a timing chain system. This design choice supports longer engine life with less invasive scheduled maintenance. If you're servicing a 2017 Lexus IS, focus on regular oil changes, using recommended fluids, and keeping an ear out for any mechanical noises. It's a smart way to keep the timing system in top shape without the hassle of timing belt replacements.