on 4/6/06 12:25 AM, John Goubeaux at john@UCSB.EDU wrote:

> Yes makes sense, though it seems like, if you look at the design of the
> rotor as well as how the rim bolts to it, that this wouldn't warp the
> rotor? Though what else could it be?  I also noticed that after
> tightening the lugs with an impact tool, they then, by hand used a large
> bar torque wrench on the wheels, so i was told to achieve 125lbs.

At Costco, I have watched several times, where the supervisor comes over
after the wheels are installed, & personally torques the lug nuts in the
correct pattern.  They don't let the tire jockey do it, although these guys
were not young kids but experienced looking volks.  I can't say that for
other places I have gone.

Your mileage may vary.

Tom-what size tires were they & did they have the proper load/sidewall
ratings?
>
> It's amazing how obsessed they are about liability and putting anything
> on that is not stock etc. but then they hire clueless kids who
> apparently don't pay much attention to properly installing things? You'd
> think we were a third world country... i saw a lot of this when living
> in Latin America.
>
> -john
>
> Mike Collum wrote:
>> My first thought is that the guy at costco torqued the lugs in a circle
>> rather than in a star pattern ... and by fully torquing the first one
>> before starting on the next rather than doing it evenly.
>>
>> Mike
>>
>>
>> John Goubeaux wrote:
>>> So, I just had a new set of 15 inch rims installed with new tires. The
>>> rims are the Rhein alloy models.
>>>
>>> After they were installed (by costco) I noticed that when braking I am
>>> now getting a pulsing action on the brake pedal. I recognize this as
>>> being from the rotors being warped. I was not getting this before the
>>> rims/tires were installed.
>>>
>>> So the question is: Could this been as a result of over tightening the
>>> lug nuts ? Or would they have had to slam the rotors with the rim to do
>>> this?
>>> or is it just coincidental?  and what might the remedy? Replace them?
>>> the rotors have never been turned.
>>>
>>> -john
>>>