I can't get as technical as some. A balancer simply absorbs rotational torque and dampens its vibration threw the the rubber compound that connects the crankshaft flange to the outer weight. The weight part of it is used to externally balance the crank shaft. Hope that helps. ron
rodney fama OCA #033098 1969 cutlass s 1969 442 north carolinia car 1969 442 cali car. assembly required stay away from www.calicars.cc what a hassle. 1972 cutlass convertable 1976 phx y-76 arizona regional car. assy. required 1977 cutlass supreme (3) 1986 honda shadow vt 1100c cruiser 1987 cutlass supreme 1989 chevy k-2500 4*4 pick up 1991 yamaha warrior atv 1994 chevy caprice 9c-1 police pkg 732-986-6388 cell 732-254-9500 wk 2 pm best time to call week days web site. shows disc brake conversion using 79 trans am rear disc on my 77 cutlass,and my 77 restoration project, along with other toys http://home.comcast.net/~77w30442/wsb/html/view.cgi-contact.html-.html http://home.comcast.net/~77w30442/wsb/html/view.cgi-photos.html-MerchantID-2 21197-Publish-t-makestatic-true-skip-45.html -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Scott White Sent: Thursday, June 01, 2006 10:40 PM To: [email protected] Subject: Harmonic Balancers Hello all- I was reading a post on realoldspower.com and, in light of my own goof ups and confusion, decided to post. What does a harmonic balancer do? I'm guessing it's there to help dampen vibration from minute differences in weight in the reciprocating assembly. Am I wrong? For my 350 project, I erroniously believed that a 350 balancer was the same as a 307 balancer and got a 307 balancer. The 307 balancer is all steel. My '70 350 balancer has a thin strip of rubber between a loop of metal and the base. On the 307, how does a solid steel balancer dampen anything? Will I kill my 350 by using a 307 balancer? I also have a '55 324 whose balancer's rubber ring is shot. They made two different balancers that year and mine, according to Fusick's, is un-rebuildable. One person on this list who used to race Gen-1 V-8's (who I aproached for advice) has informed me that he ran engines without the balancer ring without troubles. A '70 W-31 350, supposedly a nearly perfectly built, blueprinted, and balanced engine, has a *larger* balancer than a stock 350. Eh? I understand that they were built to spin higher, but what does the size of the balancer have to do with anything? What am I missing? Scott "I'm off balance" White _________________________________________________________________ Is your PC infected? Get a FREE online computer virus scan from McAfeeR Security. http://clinic.mcafee.com/clinic/ibuy/campaign.asp?cid=3963

