[s-cars] RE: RW steer

[Tim Radbourne]

I changed the tires yesterday, and the car now tracks true.  Its amazing
how big a part tires actually do play in a vehicles performance.  (I've
got a set of Firestone Firehawk SVX 225-50-16 that are going real
cheap....)

I tried to find play in bushings and links, but wasn't able to find
anything.  Thanks for the ideas that helped eliminate the chassis.

regards....

-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com] On Behalf Of Kirby Smith
Sent: Saturday, July 19, 2003 2:27 PM
To: Tim Radbourne
Cc: 'Krasusky Paul (WQQ2PXK)'; s-car-list at audifans.com
Subject: Re: [s-cars] RE: RW steer


I'm about to have all my rear bushing changed because I can feel the
effect in stability.

Inpecting them on a lift doesn't really show much; little tears in the
rubber maybe, a bit of play when pried with a BF prybar.  I would say
yours are old enough.  Expect a cost of 10 hours, directly or
indirectly.

kirby


Tim Radbourne wrote:
>
> Thanks for your response.  I see several bushings back there.  The
> ones I was most suspicious of are in line with the rear diffy and
> closest to the center of the car.  They looked bad, but jacking the
> car and tapping them with a rubber mallet didn't reveal any play???
> While jacked up, I also yanked the rear wheels as hard as I could and
> felt nothing move. (don't know if this is a scientific method
> though....)
>
> What was you test method??
>
> Tim in MI
> 93 S4 @ 140K
>
> >Paul P. steered:
> >
> >I *may* be talking out of my arse once again, but I do believe worn
> rear control link bushings (arms really) can cause exactly this.
> Well, at least did so in my MB 2.3-16.  Get back there and poke
> around, if loose time to R&R.
> >
> >-P RW steering intentionally K.
> _______________________________________________
>
> From: tr0910 at softhome.net
> To: Paul.Park at colorado.edu
> Cc: s-car-list at audifans.com
> Date: Thu, 17 Jul 2003 12:24:38 -0600
> Subject: [s-cars] Rear Wheel Steer??
>
> Every once in awhile I get a subtle surprise response from the chassis

> during a lane change, where the car feels that it is doing the
> steering for me.  Usually its related to cracks, ruts in the road etc.

> I would blame the tires, but it feels a little bit different to that.

> Are there known suspension bushings / linkages that need to be
> replaced in a 93 S4 with 140K?
>
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