[s-cars] FW: Additional input to the conversation on BBK'sandbrackets....

[Sean Douglas]

Steve:

Bentley is confusing on this because it shows either the standard single
piston calipers for the 100/A6 or the fancier 4 piston calipers found on the
euro-spec S6. Oddly, it does not show the Girling 2 piston calipers that are
stock on US-spec cars.

For the A6/100, Bentley says 92 ft lbs for the carrier to the strut bolts.
I'm assuming the bolt is the same on the US-spec S4/S6. These are M12x1.5
grade 10.9 IIRC. My handy dandy torque chart shows a recommended torque
value of 125 Nm (92 ft-lbs). Torquing these to 148 ft-lbs is way too high
and 60 is too low. Even 12.9 grade is 145 Nm for a M12 bolt.

I'd re-torque those to 92.

Sean Douglas

> -----Original Message-----
> From: s-car-list-bounces at audifans.com [mailto:s-car-list-
> bounces at audifans.com] On Behalf Of Young, Steve
> Sent: July 23, 2007 4:46 PM
> To: s-car-list at audifans.com
> Subject: [s-cars] FW: Additional input to the conversation on
> BBK'sandbrackets....
> 
> 
> I have just installed my StopTech kit.  Engineering seemed quite well
> done, and everything installed as specified.  The caliper brackets are
> aluminum, with steel pins that the caliper slides over.  Attached are
> links to a couple pics in my AW picposter.  StopTech says to torque the
> caliper bracket mounting bolts to 148 ftlbs, but IIRC Bentley says ~60
> ftlbs.  Unfortunately, StopTech doesn't produce an installation manual
> specific to the C4 S-car, so they send you the manual for the B5 S4/C5
> A6 kit.  I torqued mine to the factory spec, but haven't bled out the
> system or driven on the kit yet.  Getting a torque wrench in there that
> will do 150 ftlbs will be near impossible.  Will I be okay with the
> factory setting?  Input is appreciated.  TIA
> 
> http://pictureposter.audiworld.com/87069/dscn0028.1.jpg
> 
> http://pictureposter.audiworld.com/87069/dscn0027.jpg
> 
> http://pictureposter.audiworld.com/87069/dscn0025.1.jpg
> 
> Regards,
> 
> 				TRANE
> Steven Young
> Local Operations Manager
> Albany Office
> *  Tel. (518) 724-1453
> * Fax (518) 785-4359
> * sryoung at trane.com
> 
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