This sound can either be a steady tapping noise or even a slapping sound. When your timing belt gets loose between gears that it connects to on the camshaft to the crankshaft it can begin to knock between the parts as well as hit the timing belt cover that keeps it secure in place. If you experience one of these it could be potentially something else but if you're experiencing two or more of these symptoms and it's a good sign that your timing belt tensioner is the source of the problem and you should have a mechanic take a look at it as soon as possible. There are a handful of symptoms you can be on the lookout for to let you know that your timing belt tensioner is failing as opposed to something else in your engine. What Are the Symptoms of a Bad Belt Tensioner? That said, a timing belt tensioner can fail and wear out in time just like anything else does so replacing it as part of a timing belt kit along with the belt itself and the water pump in your vehicle Theoretically the timing belt tensioner should last the life of your engine. They are replaced when they wear out, but there is no suggested scheduled maintenance for a tensioner and it's not the sort of thing that has a specific lifespan. It's always best to check your owner's manual to find out exactly how long your particular timing belt's last but it's worth noting that in general they are expected to last between 60,000 miles and 100,000 miles.Ī timing belt tensioner doesn't specifically have a lifespan that you can look up in your owner's manual or online. Timing belts have life spans that can vary greatly from one model of vehicle to another. Generally, a timing belt tensioner is replaced alongside the timing belt itself. How Long Does a Timing Belt Tensioner Last? Of course, if that's the case you need to be mindful of the signs and symptoms that you're experiencing to let you know that it's not necessarily the timing belt that's failing but the timing belt tensioner. Usually we hear of the timing belt itself going bad and needing to be replaced, it's possible that the timing belt tensioner is the problem when your engine and it can be replaced separately from the timing belt if it's not doing his job properly. Without the tensioner arm you wouldn't be able to pull the bell tree to replace it with a new one. The pulley allows the belts to move as necessary in the system and the tensioner arm is a counterbalance to the spring allowing the timing belts to move and adjust as necessary. Everything is mounted on the base in the spring is what is used to keep things pulled tightly in place. A timing belt tensioner is made of four parts and includes the base, a spring, a pulley, and the tensioner arm.
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