A6 rear differential fluid change

[Huw Powell]

It makes sense - each "impact" is, on its own, not enough to hurt 
anything, and you just sit there and "hit" it over and over and over again.

Similarly, the "master mechanic" next door's trick for freeing up brake 
bleeder screws without breakage is to put a wrench on them and tap the 
wrench repeatedly with a very small hammer - a miniature impact wrench. 
Torque is always low (probably a couple ft lbs at most) so it doesn't 
"twist" the bleeder before the threads let go.  It actually works very well.

Hayes Myers wrote:
> You actually just sit there cranking on low with the impact?  I've typically
> whacked it back and forth a bit... however snapped bolts occur (5hp 60gallon
> tank) from time to time...guess that's where the lower setting comes into
> play?  The impact motion is what does the work on breaking loose the bolt
> right?   I like the concept though that perseverance with the impact wrench
> can pay off... i think having a compressor with some grunt is key (and don't
> use a cheapo impact wrench)
> 
> Hayes
> 
> -----Original Message-----
> From: quattro-bounces at audifans.com [mailto:quattro-bounces at audifans.com] On
> Behalf Of MXHOWES at aol.com
> Sent: Thursday, April 16, 2009 9:33 AM
> To: quattro at audifans.com
> Subject: RE: A6 rear differential fluid change
> 
> If you have an 1/2" impact wrench don't be afraid to use it (on the  lowest 
> setting). Use something like PB Blaster then just sit on it for 10+  
> minutes with the impact wrench on LOW and occasionally reverse  directions.
> This 
> is a trick used by diesel mechanics on heavy equipment.  I've seen a special
> 
> jig fabricated to hold the wrench while you go have a  cup.
> Jim
> **************Access 350+ FREE radio stations anytime from anywhere on the 
> web. Get the Radio Toolbar! 
> (http://toolbar.aol.com/aolradio/download.html?ncid=emlcntusdown00000003)
> _______________________________________________
> quattro mailing list
> quattro at audifans.com
> http://www.audifans.com/mailman/listinfo/quattro
> ---
> Watch this space for ads :)
> 
> _______________________________________________
> quattro mailing list
> quattro at audifans.com
> http://www.audifans.com/mailman/listinfo/quattro
> ---
> Watch this space for ads :)
> 
> 

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/