actually jeep made the on the car brake lathe a essential tool when the wj's
came out with the rotor problem they had and it didn't help

Jerry Bransford wrote:

> You possibly misunderstood that they need to be turned while still
> mounted on the axle, I just don't see how rotors can be turned (which
> requires a lathe) like that.
>
> And rotors can not only warp from lug nuts not being tightened equally
> (which is getting rare now due to heavier-duty rotors being used now on
> Jeeps) but from overheating the rotors from hard braking as well. NO
> automotive manufacturer will warranty the brake assembly for wear or
> warped rotors beyond a "courtesy" period which is often around 12,000
> miles. The reason is that brake wear and rotor warping is not generally
> under control of the manufacturer since one customer might get 60,000
> miles out of a set of brakes where someone else may only get 10-12,000
> miles out of them.
>
> Fred wrote:
> > I had the tires rotated at 12,000 miles by the dealer, nothing else has
> > been done to the vehicle. I feel that the rotors should not wear or
> > warp at 18,000 miles, and is it necessary to have them turned on the
> > vehicle, or are they just trying to get me to have the dealer do the job?
> >
> > Fred
> >
> >
> > "Earle Horton" > wrote in message
> > om...
> >> I have 80,000 miles on the brakes on my 1995 Wrangler, with no work
> >> performed on them except for an occasional fluid flush and inspection
> >> of the
> >> front pads and the rear shoes. Your theory makes some sense. In 18,231
> >> miles the OP maybe had the tires rotated once, enough to get the rotors
> >> warped if they used an impact wrench.
> >>
> >> Fred, what work have you had done on the vehicle previously?
> >> Specifically,
> >> have you had the wheels taken off before, and why?
> >>
> >> Earle
> >>
> >> "Mike Romain" > wrote in message
> >> ...
> >>> It would appear it is a really common scam the $tealerships are pulling
> >>> these days.
> >>>
> >>> They use an impact gun to install the tires and the rotors warp. They
> >>> then sucker you for a turn and use the impact gun again on the tires so
> >>> the turn doesn't last at all. They are 'supposed' to finish tightening
> >>> the wheels by hand with a torque wrench so the lugs push evenly on the
> >>> rotors.
> >>>
> >>> If you go into their shop, I will bet you will see the so called 'techs'
> >>> just hammering wheels on with no torque wrench to be seen.
> >>>
> >>> Even if they claim they use 'torque sticks' on their gun, these are not
> >>> accurate enough to prevent warpage. New out of the box, those sticks
> >>> are still +/- something like 15% which can make a 30 ft lb up or down
> >>> difference at 100 ft lb of torque.
> >>>
> >>> Half the time, rather than replace, the rotors get turned under
> >>> warranty, then they hammer the wheels back on and the next one is a
> >>> replacement just after the warranty is up.
> >>>
> >>> Mike
> >>> 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
> >>> 88 Cherokee 235 BFG AT's
> >>> Canadian Off Road Trips Photos: Non members can still view!
> >>> Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
> >>> (More Off Road album links at bottom of the view page)
> >>>
> >>> Fred wrote:
> >>> >
> >>> > I have a 2004 Jeep Liberty that I purchased brand new in November of
> >> 2003.
> >>> > I have 18,231 miles on it and the brake rotors are bad. The dealer
> >>> > told
> >> me
> >>> > that they need to be turned. I was not happy with the fact that it
> >>> was
> >> not
> >>> > covered under their 3 year or 36,000 mile warranty. I told them I
> >>> > would
> >>> > take it somewhere else to have the rotors turned because their
> >>> price > was
> >>> > ridiculous. The Service Manager told me that I should make sure that
> >> the
> >>> > rotors were turned on the vehicle because that is the only way they
> >>> are
> >>> > supposed to be done on the Jeep Liberty. Has anyone else had this
> >> problem
> >>> > with only 18,000 miles on their Jeep and is it true that the rotors
> >>> > have
> >> to
> >>> > be turned on the vehicle? Thanks for any comments on this problem.
> >>
> >>
> >
>
> --
> Jerry Bransford
> PP-ASEL N6TAY
> See the Geezer Jeep at
> http://members.cox.net/jerrypb/