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Home » Public Forums » GMCnet » [GMCnet] Reviving the Cad 500  () 1 Vote
Re: [GMCnet] Reviving the Cad 500 [message #165463 is a reply to message #165431] Thu, 05 April 2012 12:51 Go to previous messageGo to previous message
Bob de Kruyff   United States
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma:
Senior Member
""I'll bet that was an externally balanced engine. My engine guy was
balancing one of those last week and having a heck of a time because of
just that feature.

The Cadillac's internally balanced. While that certainly doesn't exempt it
from becoming imbalanced by external components, I don't think a
machined-round part like a hub and a matching machined-round rigid pulley
are likely to do it. I'll bet the QC rejection rate on those components is
nearly zero.

Ken H.
""

I don't know about the Cadillac engines, but the Chevy's were no longer dynamically balanced after around 1977 since the variation of the piece parts was considered to be acceptable. Wasn't the mass damper more a consideration for the accessory drive than the crank? If you can buy the damper off the shelf and slap it on your engine, I wouldn't think they are matched to a specific engine??


Bob de Kruyff
78 Eleganza
Chandler, AZ
 
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