I've had clutch chatter for about 50K miles and 5 years.
Happened about 10K after I had a new clutch put in.
My problem, I believe is because of a leaking transmission seal.

It is probably not very good on the motor mounts over time.
It does keep people from wanting to drive your van though. :-)

Todd
'88 Westy

Art McGinn wrote:

>   my '82 vanagon had a new clutch installed about 12k back but, later, some
>"chatter" began surfacing when the van is on an upgrade and starting-up from
>a dead stop. the chatter, which feels like internal bucking from the rear
>end, stops when the clutch pedal is disengaged. i am told the chatter is due
>to an ill-matched surface, like clutch and pressure plate or something.  the
>question is, is this a fatal condition or one that just sounds bad? is such
>a clutch going to go bad sooner rather than later? otherwise, gears shift
>easily and clutch is normal. thanks for any thoughts. art
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