[V8] Bumptey, Bumpety, Bump, Bump, Bump

[Ingo Rautenberg]

Oh, right.  Al makes good points.  Eventually you find yourself replacing
everything ;-)

On Sat, Dec 26, 2009 at 2:53 PM, 32VQUATTRO <ALLANVEGA at comcast.net> wrote:

> In order for a bad bump stop to be the culprit, the shock would have to
> fully compress first. If your driving over known bumpy roads, I doubt you
> driving fast enough to compress the shock fully (that is unless you beat on
> your car ) What's more likely the problem, in my opinion, is a bad lower
> control arm bushing, or camber link (in that order) The bushing I would look
> at first, would be the most forward bushing on the lower control arm.
> Depending on the year of your car, this will either have two or three bolts
> going to the chassis and one bolt going through the bushing into the lower
> control arm. Good luck. Al
> ----- Original Message ----- From: "Ingo Rautenberg" <
> ingo.rautenberg at gmail.com>
> To: "Mark Kalbskopf" <gbmarc at cox.net>
> Cc: <v8-bounces at audifans.com>; "V8List Fans" <v8 at audifans.com>
> Sent: Saturday, December 26, 2009 1:42 PM
> Subject: Re: [V8] Bumptey, Bumpety, Bump, Bump, Bump
>
>
>
>  Mark,
>>
>> This will get stripped on the list, but I've attached a PDF I made of the
>> pertinent Family Album section: Main Group 5, Sub Group 5, illustration
>> 48-10.  Bump stop is number 9, and that includes a (iirc) black cover and
>> orange hard rubber bump stop, PN# 441 512 129
>>
>> Regards,
>>
>> Ingo
>>
>> On Sat, Dec 26, 2009 at 1:30 PM, Mark Kalbskopf <gbmarc at cox.net> wrote:
>>
>>  Ingo,
>>>
>>> I don't see a rubber bump stop. At least nothing that looks like the one
>>> in
>>> the manual diagram 42-70-1. There's nothing visible around the shiny
>>> piston
>>> part either. If I remove what the manual calls the  'protective boot' and
>>> 'protective cap' then I could possibly imagine the top 1/4" of something.
>>> Should it be clearly visible?
>>>
>>> Mark.
>>>
>>>
>>>
>>> On Dec 26, 2009, at 12:53 PM, Ingo Rautenberg wrote:
>>>
>>>  Mark,
>>>
>>>>
>>>> Couple things. Yes, could well be a blown shock. Or/and the rubber bump
>>>> stop may well have disintegrated. Have you had any suspension work done
>>>> on
>>>> that side? If so it could also be something improperly-tightened/ loose.
>>>> Another source for a noise like you are describing is either missing or
>>>> failed rear differential mount (hard to see because it's above the diff
>>>> iirc). That's all I can with of for now. Good luck.
>>>>
>>>> Ingo Rautenberg
>>>>
>>>> -----Original Message-----
>>>> From: Mark Kalbskopf <gbmarc at cox.net>
>>>> Date: Sat, 26 Dec 2009 12:46:07
>>>> To: <v8 at audifans.com>
>>>> Subject: [V8] Bumptey, Bumpety,  Bump, Bump, Bump
>>>>
>>>> While dashing thru the snow on my 254 horse old sleigh,
>>>> I have this sporadic thump,  thump, thump from behind the rear LHS
>>>> passenger as we go over the deeper holes..
>>>> My road is like a rutted farm track with 'pot holes' in the snow down
>>>> to the asphalt every so often.
>>>> It sounds like something is hitting the body or almost like the Left
>>>> rear suspension is bottoming out (hard to beleive)
>>>> Everything is quiet once we're on smooth surface again.
>>>>
>>>> I have the car up in the air right now but can't see anything loose.
>>>> The exhaust is very firmly attached.
>>>> I have never changed the rear shocks in the 10 years I've had the
>>>> car.  Could this simply be worn out shocks?
>>>>
>>>> Mark.
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>>>>
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>