Re: Mystery Knock (partially solved! update)

[Andrei Kogan <abk@phy.duke.edu>]

>MOST of the knock is now gone!  However, I still have a rattling type of
>knock with the exhaust.

Is the exaust system still original? Check all exaust hangers, and if they
are all in place and stiff, look carefully at the exaust system. On my car,
the muffler in the middle was welded in at a little bit of an angle,
doesn't catch any attention if you don't know how it should be positioned.
The tilt was big enough to  cause the resonator to  kick against the car
bottom *occasionally*. 

Andrei