>   Curious: does the sound peak at 58-60 and then decline above say 65 or get
>   worse? If the former it could be some kind of "sympathetic harmonic
>   vibration". I have noticed this in my KG and Westy but it may occur in other
>   engine types as well - DC

David, Stuart would have to find an 8-mile, 10% slope tp get his
diesel over 65 mph -- can you think of some other practical diagnostics? :-)

Cetin Seren
SyPro, Inc.
1536 Dixon Ct
Bethlehem PA 18105

cs@sypro.com