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Subject A ATI damper is pressed fit, Which makes it a PITA to remove
     
Posted by toykoz32 on May 18, 2012 at 8:25 PM
  This message has been viewed 672 times.
     
In Reply To ATI Dampner WTF posted by ouikikazz on May 18, 2012 at 05:19 PM
     
Message I use this remover for the ATI and Factory
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The claw type works on the aluminum pulleys.


From ATI Website:

Press fit of the hub to the crankshaft is vital to transfer harmonics to the damper assembly. Recommended press is as follows:

Crankshaft Snout Diameter

Recommended interference
1.0000" - 1.2500"

.0009" to .0012"
1.2510" - 1.3750"

.0008" to .0011"
1.3750" - 1.6000"

.0007" to .0009"

GM cranks are typically to tolerance +/- .0001". If you are using an OEM GM crank you can hone the damper hub as follows:

Big Block: hone to 1.5993" +/- .0001"
Small Block: hone to 1.2460" +/- .0001"

On all other cranks, the crank must be checked with micrometers and the hub with a dial bore gauge to verify fit. Most OEM cranks are held to +/- .0002" while most aftermarket cranks are held to +/- .0005." Hub bores are tight to accommodate aftermarket cranks and most steel hubs will require honing. Do not hone aluminum hubs.

[ http://www.atiracing.com/products/dampers/damper-instructions.htm ]


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