Hi

My 91 Accord LX (209 K miles, 5 speed) kinda vibrates when the engine is
warm and the car is idle, especially if for example i start the AC or I
release the clutch, even just stopped at a red light it vibrates in an
intermittent fashion. I talked about it with a good repair shop that I
really trust and they told me it was some part that was bad (I recall it's a
round or circular thing that was worn out and would transmit the vibration
of the engine to the car, they didn'T have that part in stock but they told
me it was not critical, can't remember the name of it unfortuantely). I
think their diagnostic was right, it doesn't seem critical, the car never
stalled or anything, but I'd like to have the name of that part because next
time I go there I wanna make sure they have it in stock. So how is it
called?

Thanks!

RAT