Quote:
Originally Posted by BlueR32
i am just curious to know if the stock crank pulley has a harmonic damper. if it doesn't, there's not a reason in the world to avoid an underdrive pulley. if it does, people should make their decision mindful that someone thought it was a good idea.
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Quote:
Originally Posted by JTso
Is the stock crank internally balanced? If so, there's no harmonic damper. If you see a rubber band like ring as part of the pulley, that's the elastomer for absorbing operation noises such belt rotation sound. A harmonic dampering pulley is easy to spot such as those on domestic engines. Someone should take a picture of the pulley.
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The stock pulley is not a harmonic damper, and the engine is internally balanced. There is a rubber piece for NVH reduction. This information is correct.