[s-cars] Good news - bad noose

[Serge Filanovsky]

Assuming good radar protection, driving above 95 mph sounds like the easiest
solution.

Other than your own list I would also suspect

5. Balance of wheel/tire
6. Flat spot on tire
7. Bent wheel
8. Bad wheel bearing

HTH

Serge Filanovsky

95.5 S6 Avant



> 
> Hi Y'all,
> 
> Suspecting a blown RF strut cartridge I pulled mine (Bilstein HD).  I
> pulled out mu trusty BFPW and found I needed a BiggerFPW.  A four foot
> piece of pipe took care of that.
> 
> The good news - the cartridge and the strut bearing both appear to be OK.
> 
> The bad news - the problem leading me to look at the cartridge wasn't
> caused by the cartridge which could have been replaced under warranty.
> 
> The problem: a severe shimmy in the RF wheel/tire (it feels almost to be
> airborne about once each revolution) during a high speed (85-90 mph) left
> sweeper.  There is also a slight imbalance in that spot which can be felt
> slightly at highway speeds.  The frequency of the imbalance vibrations
> closely matches the shimmy frequency.  The shimmy goes away if I slow down
> to 80 or below or accelerate to 95 or above.  My thinking was that a blown
> strut might be failing to dampen out the vibration when at the natural
> resonance frequency for the setup.
> 
> Other possible problems might be:
> 
> 1.      tie rod ends
> 2.      ball joint
> 3.      subframe bushings
> 4.      lower control arm bushing
> 
> Getting in there with a pry bar and seeing if anything moves more than what
> might be appropriate gave me no clues.
> 
> The bushings are all original ~ ten years old and have traveled nearly 220K
> miles.
> 
> What have I overlooked?  Any suggestions?
> 
> 
> _____
> Bob
> Http://Chips-Ur-S.com
> 
> '95 urS6 Cashmere Grey
> RS2 turbo/EM
> Lucas/Delphi 37# injectors
> Custom MRC software
> Stromung Exhaust sans kitty
> BIRA System 3 brakes
> Custom brake lines
> Centerforce clutch
> 100/130 watt H1 Eurolights
> Ultranator alternator upgrade
> RSB
> EGT
> Samco Hoses
> 2 Watt dash light bulbs
> 
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