Sounds like you need new engine mounts.
At 02:48 PM 3/15/2010, Daniel Heinze wrote:
>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.
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