What are the Symptoms of a Bad or Failing Harmonic Balancer?

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Symptoms of a Bad or Failing Harmonic Balancer:

The crankshaft harmonic balancer is a device connected to the front of an engine’s crankshaft, usually built into the crankshaft pulley. Its purpose is to soak up and reduce harmonic vibrations from the engine because the crankshaft rotates, as harmonic vibrations at high engine speeds can cause accelerated wear and damage to the components. they’re usually made from rubber and metal, which easily absorbs any harmonic vibrations that would harm the engine otherwise. Usually, an issue with the harmonic balancer will produce some symptoms that may alert the motive force of a possible problem that ought to be serviced.

 

Engine vibration:

One of the primary symptoms of a possible problem with the harmonic balancer is engine vibration. The harmonic balancer is specifically designed to soak up harmonic engine vibrations as engine speeds rise. If the harmonic balancer gets too old or fails and may now not properly absorb the harmonic vibrations, the engine will shake excessively. The shaking will become even more pronounced, and so dangerous to the engine at high speeds.

 

Misaligned timing marks:

Another symptom of a possible problem with the harmonic balancer is misaligned timing marks. The harmonic balancers found on many vehicles are constructed as two pieces of metal with a rubber layer in between to dampen the vibrations. If the layers separate or slip, the timing marks, which are usually stamped into the front of the pulley, can shift and thus throw off the position of the timing marks. This can make it difficult, if not impossible to properly time the engine with a timing light.

 

Separated harmonic balancer:

Another more serious symptom of a controversy with the harmonic balancer could be a separated harmonic balancer. If the rubber layer within the harmonic balancer dries or wears out, it can cause the whole harmonic balancer to completely fail by separating. If the harmonic balancer separates, the engine belts will usually come off and therefore the vehicle is going to be left without engine accessories.

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