Who ever stated "Zetec motors are INTERNALLY ZERO balanced, meaning the factory pulley IS NOT a harmonic dampener of any kind. "
Is a TOTAL MORON and does not need to be advising people about parts or how engines work
Where did you get that from ?
If you look closely at the Factory balancer it has a thin piece of rubber made in between the crank hub and the outer pulley this helps to fight "Harmonics" in and through the engine. If the Ford engineers felt that one wasent needed then they would of installed a solid "Crank Assy drive Pulley" much like the Lima 2.0 , 2.3 , 2.5 (Pinto) engines were
Now saying that , If you install a "solid assy drive pulley" it wont mean your going to have engine failure right away or ever for that matter. If your NA chances are you will never see any engine failure. If you want to take that chance its your engine its your decision
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