Shock Absorber Piston pushing up through Strut Upper Mounting Cover

[Grant Lenahan]

really? Its not a strut?

How do you do that?
( i never had a what, C3)

Grant
On Dec 15, 2013, at 5:04 PM, Ed Kellock <ekellock at gmail.com> wrote:

> Actually I believe you can replace the piston shoulder washer and the strut
> mount (strut bearing) without removing the strut assembly from the car. You
> should only have to remove the damper itself through the top whole in the
> engine compartment. If you mark the location of the triangular top plate and
> the three bolts that secure it, you can preserve the camber setting as well.
> 
> Ed
> 
> 
> 
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On
> Behalf Of Grant Lenahan
> Sent: Sunday, December 15, 2013 10:58 AM
> To: mboucher70 hotmail.com
> Cc: AudiFans (Qlist) S4 Qlist
> Subject: Re: Shock Absorber Piston pushing up through Strut Upper Mounting
> Cover
> 
> 
> The strut needs to come apart - so it needs to come out.
> 
> Grant
> On Dec 15, 2013, at 12:54 PM, mboucher70 hotmail.com
> <mboucher70 at hotmail.com> wrote:
> 
>> Hi guys,
>> 
>> Probably a dumb question, but assuming it's the strut mount, or even 
>> the washer, could that be simply replaced from the engine bay, or 
>> would it require removing the entire front suspension/strut assembly 
>> from under the car.  I realize that either way, the camber would need 
>> to be redone.
>> 
>> I also realize that if it's the shoulder of the piston that's worn, it 
>> means new struts.
>> 
>> Thx,
>> MC
>> -----Original Message----- From: Grant Lenahan
>> Sent: Sunday, December 15, 2013 11:44 AM
>> To: Cody Forbes
>> Cc: AudiFans (Qlist) S4 Qlist ; mboucher70 hotmail.com
>> Subject: Re: Shock Absorber Piston pushing up through Strut Upper 
>> Mounting Cover
>> 
>> X2
>> 
>> Yes, either the mount itself failed, or, often the strut piston has a 
>> shoulder and the shoulder a washer on it that fits against the strut 
>> mounting.
>> 
>> i have seen two issues:
>> 
>> 1. washer fails or shoulder fails
>> 2. someone ignores the washer at assembly time and ti works OK for 
>> years, until it pokes through
>> 
>> On Porsche 986/996 the Bilstein PSS9 instructions have for years left 
>> the washer out. Amazingly they don't fix the documents. Fortunately, i 
>> said "that can't possibly be right" Quick search not he internet 
>> confided it was wrong.
>> 
>> Grant
>> On Dec 15, 2013, at 11:06 AM, Cody Forbes <cody at 5000tq.com> wrote:
>> 
>>> Sounds like a failed upper strut mount. You'll want to get that fixed 
>>> pronto..
>>> 
>>> -Cody Forbes (mobile)
>>> 
>>> On Dec 15, 2013, at 11:01 AM, "mboucher70 hotmail.com" 
>>> <mboucher70 at hotmail.com> wrote:
>>> 
>>>> Took the car to the mechanic last week to put the snow tires on.  
>>>> Driving home, I noticed a new noise from the front driver's side.  
>>>> It seemed to be suspension related...heard it most when driving over 
>>>> slightly bumpy areas.  Not loud, almost imperceptible, but sounds as 
>>>> though something is rubbing/chirping/moving that shouldn't be.
>>>> 
>>>> With car parked, I pressed down on the driver's side front fender to 
>>>> see if I could hear the problem.  Then I noticed that the shock 
>>>> absorber piston and nut would move upwards whenever I pressed down 
>>>> on the fender. It certainly wasn't like this in the past, nor is it 
>>>> like that on the passenger side.
>>>> 
>>>> The first thought would be that the piston nut needs tightening. 
>>>> However, it's a locknut, and moreover it doesn't appear to have 
>>>> loosened from its usual position.  Before taking it back to the 
>>>> mechanic I'm going to buy the correct size Allen key so that I can 
>>>> hold the piston while attempting to tighten the nut.  I doubt it 
>>>> will tighten, but I'd be able to verify that its tight.
>>>> 
>>>> The question I had...since the problem seems to coincide with the 
>>>> car being jacked up, is it likely that something just slipped out of 
>>>> position, such as a worn dampening ring or bump stop...something 
>>>> that would give the shock piston more room to push upwards?
>>>> 
>>>> Car drives fine, even at speed...no pulling or unusual sensation in 
>>>> the steering....just the new noise.
>>>> 
>>>> Thanks
>>>> 
>>>> MC
>>>> Audi 100 1990 Non-Quattro 
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