[s-cars] Driveshaft alignment

[Vincent Frégeac]

While these are very valid points, I should add that I really JNRed the
propeller shaft during R&R, doing everything that was strictly forbiden by
the Bentley (i.e. not keeping the shaft straight during the R&R, pulling on
the carbon tubes so they're probably not round anymore, hammering any metal
part I can find to get that f***g front CV of the front half-shaft) and I
ended up with, after checking the alignment of the shaft which BTW was
miraculously just right, a perfect non-vibrating propeller shaft (that was
shaking the whole car from 1.8Krpm to 4.5Krpm before the supposedly R&R that
ended as a rule-making-JRN of the shaft)

In a few words, based on my experience, if you've half decently R&R the
propeller shaft, there's little chance the balance of the shaft is
questionable (other wise my shaft would already be speaking with penguins
far far up North, or with surfers in Hawaii if it has a tad bit of common
sense but I don't think so).


Vincent.

-----Message d'origine-----
De : s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] De la part de Kurt Deschler
Envoyé : 17 janvier 2007 16:10
À : 'JR'
Cc : s-car-list at audifans.com
Objet : Re: [s-cars] Driveshaft alignment

Joel,
Look for the double spot welds that hold the balance weights on. If you 
find spot weld marks and no weight there, you know where to start adding 
weight. It is amazing how a small imbalance here can make the whole car 
oscillate.
 	-Kurt

> Message: 3
> Date: Wed, 17 Jan 2007 13:35:28 -0600
> From: 'JR' <audiurs4 at mailforce.net>
> Subject: Re: [s-cars] Driveshaft alignment
> To: Vincent Fr?geac <s.sikss at gmail.com>
> Cc: s-car-list at audifans.com
> Message-ID: <45AE7A80.8050208 at mailforce.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I hope it is the alignment.  I'm going to get back to the car this
> weekend.  If it's not how would you go about balancing the shaft or
> would you just get a new one?  I've heard of trial and error balancing
> with a hose clamp and the car on blocks.  You run the car with the
> wheels off the ground to check the balance.  Then if it's off you put a
> pair of hose clamps (the kind with the screw for tightening making one
> spot heavier).  Check again and if it's still off you rotate the clamps
> a little each time you check until you find it.  ever hear of this?  It
> sounds a little cheesy, but I'd rather at least try it than be without
> the car for another couple of weeks.  Has anyone tried this before?
>
> Joel
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