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I've found contradictory information about our big heavy crankshaft mounted damper.

Some say it is a wear item and contains rubber, but when I removed mine for the timing guide it certainly just felt like a solid piece of metal. It certainly doesn't look like "normal" harmonic balancers.

Has anyone dissected one?

Mine seems to have some runout, and I'm deciding between replacing it, or just buying new stretch bolts and re-torquing using a better angle gauge. I've also noticed more engine vibration at ~1500 RPM. Though, this may have coincided with my recent motor mounts... New flywheel and clutch last month didn't change the vibes either.

So, does anyone have definitive, first hand information?

Thanks.
 

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it does contain rubber but not to the extent that some other manufacturers use. i think i have one laying around with around 40k mi on it. if you want to give replacing it a shot i'll let you have it for a fair price.
 
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