UFO screw

Bernie Benz b.benz at charter.net
Sun Nov 4 20:11:25 PST 2007

I agree, Brett.

Why did Audi decide that braking torque should not be distributed  
from the hub to the rotor via the lug bolts, and apparently to my  
knowledge, only on the V8 and 200Q-20V UFOs? Apparently, all past and  
current conventual rotor applications use the lug bolts exclusively.  
Maybe your point that the subject screw and plug rotor alignment
is only to ease UFO wheel installation, is its only justification?


On Nov 4, 2007, at 7:02 PM, Brett Dikeman wrote:

> On Nov 4, 2007, at 12:44 PM, Kneale Brownson wrote:

> I stopped using the set screws a few years ago.  I never found it to
> be a significant burden to align the rotor, hub, and wheel, IMHO.  I
> wouldn't sweat it, unless there's some purpose to the screw besides
> making wheel installation easier.  I just put a wheel on, align it to
> the rotor (easy to do, the rotor spins pretty freely), and then spin
> the two together until a lug bolt I'm pressing pops into the hub a  
> bit.
> But, most of the time it was with the luxury of time, some light, and
> a driveway :-)
> Brett
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