Join Date: Aug 1998
Location: Waldorf Md. USA
The ATI dampers are designed to be honed so that they can fit some of the aftermarket cranks that were made a bit on the small side. The only way to properly install it is to have someone measure the size of your crankshaft snout, and then hone the ID of the damper to the proper interference fit. I don't think it is ten thousanths by the way, more like .0015" ( One and a half thouthanth ) I will have to look in my stuff at the shop to be sure.
By the way, the only way to properly hone the damper is on a machine like a Sunnen connecting rod hone. Do NOT try to do it with a brake hone etc, you will probably ruin the damper.
Your machine shop should be able to do this for you.
Advanced Automotive Machine
1971 Chevelle "Heavy Chevy" original owner
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