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272 Harmonic balancer removal / bolt/thread size

Posted By Unibody1962 9 Years Ago
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charliemccraney
Posted 9 Years Ago
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Supercharged

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The bolt for fixing the damper to the crank and threads used for installing the damper is 9/16-18.

The threads for removing the damper (the subject of this thread) and holding accessory pulleys are 3/8-16



Lawrenceville, GA
Genuinerod
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I believe the bolt size for all Y-Blocks (272-312) is 9/16-18 x 1 3/4".
charliemccraney
Posted 9 Years Ago
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For pulling, 3/8" coarse thread.  The threads often  get filled with grime, which make it difficult to thread the bolt.



Lawrenceville, GA
Rono
Posted 9 Years Ago
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Try a 9/16"-24

Rono

http://forums.y-blocksforever.com/uploads/images/4a19e870-e870-4f63-a0a4-db5b.jpg  Ron Lane,  Meridian, ID



Unibody1962
Question Posted 9 Years Ago
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Hitting on all eight cylinders

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Hi All, 

Can someone tell me the bolt and thread size on the harmonic balancer. Trying to remove one of a 272.
Both my pullers don't have the right sized bolt.

Any help appreciated.

Thanks


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