Hi Dan:
If you have any concern about the harmonic balancer, I suggest contacting
http://www.dalemfg.com
to have yours rebuilt. There is a difference I have found with a rebuild. The
harmonic balancer is two metal pieces sandwiched together with rubber in the
center to absorb engine vibration. The rubber gets harder with age and heat.
It is less expensive to have one rebuilt and will be better than a new one off
the shelf.
It almost sounds as if your engine is sitting to low in front for some
reason. Your problem may not be the harmonic balancer or at least not only the
harmonic balancer.
Fred
> From: dth104@psu.edu
> To: datsun-roadsters@autox.team.net
> Date: Mon, 15 Mar 2010 15:48:13 -0700
> Subject: [Roadsters] U20 Crank Pulley (Harmonic Balancer)
>
> At idle with the tranny in neutral and the clutch released, the crank pulley
> on my U20 hits the cross member below it just enough to make a horrible
> clatter. Depressing the clutch or driving the car seems to lift the engine
> just enough to stop the clatter.
>
> What's the likelyhood that the crank pulley is out of round and needs
> replacing? The engine and tranny mounts are new and in good condition.
>
> Any thoughts, suggestions or solutions will be appreciated.
>
> Thanks
>
> Dan Heinze
>
> 68 Solex 2000
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