[V8] Center Driveshaft bearing and clunking

[Ingo Rautenberg]

Mark,

I can't answer your question, but will add that a contributor to driveshaft
slop can be bad rear  differential mount(s) also.

Something you may want to check at the same time.

-Ingo
On Sep 5, 2011 2:01 PM, "Mark Kalbskopf" <gbmarc at cox.net> wrote:
> This is only generically V8 related but . . .
> Does anyone have experience of how much play is acceptable in a center
> drive shaft support bearing?
> I'm talking about pushing the driveshaft up and down so the rubber
> compresses in the bracket.
> My daughter's A4 Quattro (manual) has a clunk or thump going on on
> every time you let off or go back on the acceleration.
> I crawled underneath and expected to see the rubber surrounding the
> drive bearing all shot but it wasn't. Now, the rubber had some small
> cracks in it when flexed but it was all solid.
> The shaft had about 3/4 to 1 inch of flex between me pulling it down
> and pushing it up.
> The U-joint had no play, neither did the CV joints and I couldn't see
> any obvious problem with the transmission mounts.
> Is 3/4" too much flex? How solid is a new one?
>
> Mark
>
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
>
> You can help keep the audifans site running by shopping at
http://audifans.com/shop/
>