[s-cars] Re: [V6-12v] Weird steering problem

[Paul Gailus]

First of all, since the problem is so assymetrical when turning
right vs. left,  it seems very likely that the problem is inside the
steering
rack itself and not in the Servotronic control or external hydraulics.

Possibly there could be a sticky check valve feeding one of the two
reaction chambers that applies "feedback" forces to the steering wheel
(the one for right turns). Perhaps this check valve doesn't open until you
get a high enough pressure buildup in the main servo chamber as you
turn the wheel, but then the sudden valve opening causes the feedback to
appear just as suddenly at the steering wheel.
If this scenario is causing the problem, then it's possible (but still a
long shot)
that flushing the rack and hydraulics could clear out a dirty/sticking
check valve.
If this doesn't work, it sounds like you'll need to look into a rebuilt
steering rack.

Paul
93 S4
95 S6

----- Original Message -----
From: CyberPoet <thecyberpoet at cyberpoet.net>
To: Rokas Reipa <rokas at wam.umd.edu>
Cc: <quattro at audifans.com>; <v6-12v at audifans.com>; <s-car-list at audifans.com>
Sent: Tuesday, March 18, 2003 10:07 PM
Subject: [s-cars] Re: [V6-12v] Weird steering problem


> Q: Is it perhaps that your right arm is significantly stronger than
> your left? And the 'jerk point' happens at the limit of you left arm's
> ability to push around the steering wheel (say about 7 o'clock on the
> dial)?
>
> I know this isn't the answer you were looking for, but it a possibility
> that came to mind.
>
> Is the problem detectable with the Servotronic on?
>
> =-= Marc Glasgow
>
> On Tuesday, March 18, 2003, at 10:50 PM, Rokas Reipa wrote:
>
> > Hello everyone. Been having a weird steering problem with my car
> > recently
> > and was hoping somebody could point me to a possible solution. Car is
> > a 93
> > 100s 5sp with servotronic disabled. When driving, it is noticeably
> > easier to
> > turn the wheel to the right than the left(i.e. the level of assist when
> > turning to the right is noticeably higher). This lasts for about a
> > quarter
> > turn and then the assist drops noticeably(almost to the point of
> > 'jerking'
> > the wheel back) and it feels normal when turning it further. What can
> > be
> > done to prevent this from happening? It is quite unnerving to have
> > varying
> > degrees of assist when maneuvering the car at a moderate speed. I
> > thought
> > this problem would go away when I disabled the servotronic but it still
> > remains. Please help! Thanks,
> >
> > Rokas
> > 93 100s 5sp
>
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