Why Timing Belts Have Teeth and How They Work

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Timing belts are used in any number of mechanical devices, but you most often think of this type of toothed belt in connection with your car or truck, where it serves to drive the camshaft.

The original timing belts were made of rubber over various sorts of natural textiles. Today, though, they’re more likely to be created from flexible polymer laid over a reinforcing fabric. The newer belts are more durable, but they can still fail.

What happens when a belt fails?

A timing belt problem can happen in a couple of ways – it can develop gradually, or it can occur suddenly and with potentially catastrophic results. As time goes on, the chances of either type of failure will increase exponentially.

You should never ignore timing belt wear, and one of the most common types of wear is a destruction of the teeth. The teeth ensure that the belt doesn’t slip. Timing belt teeth can take a bit of damage, but eventually if they deteriorate too much, there will be slippage. The belt will continue to work, but the timing will be off. When this happens, you should replace the timing belt. It’s not likely that the belt will break, but constant slippage could damage other components in the engine compartment.

If your belt is showing significant wear, or has several teeth missing in succession, don’t delay. Have it replaced.


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Recent Timing Belt Replacement reviews

Excellent Rating


YourMechanic Timing Belt Replacement Service

Average Rating

4.9/5

Number of Reviews

1,152

Rating Summary
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1,077
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24

Chris

21 years of experience
1719 reviews
Chris
21 years of experience
Honda Civic - Timing Belt - Perris, California
Chris did an excellent job for replacing my car's water pump and timing belt. He explained everything and turns out great now i know that i won't have a leaky water pump no more.
Lexus ES330 - Timing Belt - Murrieta, California
Chris does a great job, checks his work and keeps me informed as to status. I request him when I use Your Mechanic. I feel like I can trust him.

Fred

16 years of experience
364 reviews
Fred
16 years of experience
Honda Odyssey - Timing Belt - Humble, Texas
Fred arrived on time and got to work immediately. He wouldn’t even take me up on my offer of coffee.....or lunch. He was very competent and efficient., and personable. We talked about a common interest, Air Force jets (I made sure not to distract him). Fred completed the work in less time than expected to my complete satisfaction. I will talk Fred and Yourmechanic up to friends and family and will definitely use Yourmechanic again.
Lexus SC430 - Timing Belt - Spring, Texas
On time. Polite. Competent. Willing to answer questions. Did great work. What else can you ask for?

Diego

20 years of experience
501 reviews
Diego
20 years of experience
Dodge Neon - Timing Belt - Tempe, Arizona
Our experience with Diego was excellent! Diego was here to replace the timing belt and water pump on one of our vehicles. Diego is a true professional and carries himself as such. His demeanor was pleasant and cordial; he was respectful and polite; and, he was communicative and took the time to explain his work and keep us apprised of his progress. Once the work was complete, Diego thoroughly explained all the work he did and the results of his inspection. I would use Diego again in a heartbeat and would also recommend him as he is truly a professional who know his stuff and his cars.
Mitsubishi Endeavor - Timing Belt - Phoenix, Arizona
Diego is an excellent mechanic. He was skilled, informative, and a pleasure to work with. I will definitely be using him again. Kudos, Diego!

Scott

21 years of experience
49 reviews
Scott
21 years of experience
Toyota Avalon - Timing Belt - Glendale, Arizona
Scott worked in the timeframe given plus, he was very professional in doing the job! Satisfied Consumer
Dodge Grand Caravan - Timing Belt Replacement - Phoenix, Arizona
Scott did a great job even in the 113 ' heat. He was courteous, conscientious, and knowledgeable. He went above and beyond to make sure my car was back to good running order.

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