Grinding from center? Rear end?

[R Mangas]

   My '86 4kq had a similar issue; it was a bad CV joint at the outside of
the drivers rear.  Easy enough to figure out for me; it made classic bad CV
joint sounds periodically.  Loading goes up with the diff locked, so it gets
worse.

  $0.01,
Robert




>From: Mholme3 at aol.com
>To: quattro at audifans.com
>Subject: Grinding from center? Rear end?
>Date: Tue, 18 Feb 2003 22:08:23 EST
>
>--
>[ Picked text/plain from multipart/alternative ]
>Listers,
>
>After some heavy snow in MD over the weekend, I finally got a chance to
>"play" for the first time all year.  I was only beaten by one road.  When I
>attempted to lock my center diff..nothing, rear diff.... nothing.  So I
>back
>out with my pride handed to me and go home in search of the leak.  After
>changing all the little hoses, I finally was able to lock  both diffs from
>the switch.  So I go back to teach that road a lesson..After making it
>through with little incident, I'm on my way home and  unlocked the rear
>diff(the center has a broken nipple so I have to unlock from under car) and
>get ready to make the u- turn into my drive.  Now I'm fully prepared for
>the
>lurching and dragging  caused by such a maneuver with a diff locked, but
>the
>sound I heard was anything but normal.  It was a horrible metallic
>cracking/pop sound that was either from the rear or center area, couldn't
>quite tell.  I should say that this was sort of a pre existing condition
>that
>only presents itself when taking off from a stop and turning at the same
>time.  The sound was amplified by having the center diff locked.  Just
>wondering if anyone has any thoughts on the matter.  I have an idea but
>would
>still like opinions.
>
>Thanks for any help
>
>Marques
>87 4kq


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