7 Things to Know About Subaru Timing Belts in Shingle Springs

7. Not All Vehicles Have Timing Belts

Some vehicles have timing chains rather than belts. There are benefits to each: chains tend to be more durable, whereas belts are lighter and quieter. If you're Subaru came off the assembly line within the past few years, it probably comes with a timing chain.

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6. Timing Belts Synchronize the Rotation of the Camshaft and the Crankshaft

For the internal combustion engine in your Subaru to run properly, the valves need to open and close at the right time. The timing belt or chain will make sure that this happens by linking the operation of the valves with the crankshaft that determines the position of the pistons.

5. Timing Belts Have Extra Importance on Interference Engines

In an interference engine, the piston and the valves occupy the same space in the cylinder at different times. This means that proper timing is even more critical. In a non-interference engine, a broken timing belt simply means that the engine will stop. In interference engines, improper timing can lead to a piston striking a valve.

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4. The Timing Belt Often Drives the Water Pump

In addition to its important job of synchronizing the crankshaft and camshaft, the timing belt will drive the water pump in many engines. This is why technicians will often perform a water pump replacement when they replace a timing belt.

3. The Belt is Buried Deep in the Engine

Changing a timing belt is known to be a longer and more expensive service. This is because the belt is buried deep within the engine, and getting to it requires extensive disassembly.

2. A Worn Out Timing Belt Won't Usually Present Any Symptoms

Many parts of your vehicle will give you some kind of warning before they break entirely; low brake pads may squeal, dying batteries may make it harder to start your Subaru, etc. A timing belt, on the other hand, often won't give any warning before it breaks. That's why it should be changed on a strict schedule based on miles driven.

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