alternator whine puzzle (X post) long

[Brandon Rogers]

tried that - no help
 
from orig post:
"Just to experiment, in case there was some sort of harmonic resonance
occuring or something??? I then installed a rubber sheet gasket between
the contact areas of the 2Bennett alternator bracket (it is a plate with
tabs hanging down) and the stock a/c compressor bracket.  This made
virtually no difference."
 
But thanks!
 
Brandon

-----Original Message-----
From: SuffolkD at aol.com [mailto:SuffolkD at aol.com] 
Sent: Saturday, October 28, 2006 9:03 AM
To: 200q20v at audifans.com; brogers at terrix.com
Subject: Re: alternator whine puzzle (X post) long



I'm going to take a WILD guess here: 
What if the whine is the two cases transmitting vibrations through each
other? 
Would the mounting of the two compressors with rubber vibration
(dampening / isolating) bushings between them help? 

Otherwise, I'd suspect the alignment of the pulleys and the belt
twisting; leading to  the whine or premature bearing failure. 

HTH - Scott by BOSTON 

In a message dated 10/26/2006 12:01:54 PM Eastern Daylight Time,
200q20v-request at audifans.com writes: 



2Bennett makes a bracket (steel I think) that mounts the 
alternator to the underside of the urquattro a/c compressor, allowing 
for extra room on the passenger side for a big intercooler.