<VV> Harmonic Damper(Not balancer)

[BobHelt at aol.com]

In a message dated 6/13/2011 8:55:39 A.M. US Mountain Standard Time,  
vairologist at cox.net writes:

I don't  know if is magic or not, but the 6th harmonic 
torsional  vibration of  an Early crank is shown in the SAE papers as 
4,300-4,400  rpm.
 
Yes, but please note that the author, Bob Benzinger, cited that fact as  
evidence that a harmonic damper was NOT NEEDED.
Regards,
Bob Helt