11-03-2011, 09:12 pm
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 Join Date: Nov 2006 Location: SoCal Posts: 1,473
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|  Damper balancing
My mechanic did the front cover & upper oil pan & main seal today. The damper had a big gouge in it under the seal area & replaced the damper with a new stock one. He reused the bolt & said it would be fine. I know it's TTY and he knew also. Question is the balance. He drilled out balance holes to match the original & reinstalled it (as indexed with witness marks) The engine seems smooth/fine with no difference that I can tell thru the rpm range. This seem ok? No guesses please, only if you have actually done this work. How else would you restore the original balance? I can't think of a way. | ||||||||||||||||||||
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2004 Z06/Z16 1996 LT4 Coupe (SOLD) 2006, 2009, 2010, 2011 SCCA Solo Regional Champion Check out my DIY videos http://www.youtube.com/user/1947froggy?feature=mhee Last edited by froggy47; 11-04-2011 at 01:33 pm.. | |||||||||||||||||||||
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11-05-2011, 06:38 am
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| GM World Class Certified Technician  Join Date: Nov 2006 Location: New Haven Ct Posts: 5,141
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HI there, Truthfully, the damper should NEVER be drilled by a technician. They are all neutral balanced and do not require modification. The holes for balancing pins are for finite assembly irregularities that are addressed due to tolerances. The other holes are for actual balancer irregularities. Personally, I would get another and put it in, along with the balancing pins if there were any pins in the original. Allthebest, c4c5 | ||||||||||||||||||||
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| The Following User Says Thank You to c4c5specialist For This Useful Post: | froggy47  (11-05-2011) |
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