This subject has been almost done to death on the list, try searching
archives!

And I have some info on my website.

Alistair

--
'82 Westy -> diesel converted to gas in '94
albell@uvic.ca
http://members.shaw.ca/albell

on 23/2/03 12:55 pm, Nock wrote:

> On trying to rid the "last vestige" of drown between 3-4K rpm.
>
> Could it be that it is not the exhaust, but simply that the rear engine
> mounts are inadequate for the engine at 3-4K?   I have heard that this
> engine, vibrates a lot AND has a natural resonance at 3-4K. Maybe the rear
> mounts (which are primitive and small by modern standards) are letting this
> vibration reach the frame, which in turn creates, in large open space of the
> vanagon body type, the "drone" type sound we hear?
>
> How can we test if it is engine mount related our exhaust related?
>
> Can any user help with this?
>
> Andrew Nock