Re: Warped Hub/Rotor Assembly

[n9ads@domain.elided (Howard R Pletcher)]

>"John A. Landry" wrote:
>
>> Of course I don't know what causes the warping of the Scout II hubs,
but
>> this sounds like a perfect application for cryogenic treatment.  If I
ever
>> buy new hubs, I'll definitely have them cryo treated before their
first
>> use... probably new rotors too.
>>
>>
We have a local auto repair radio show hosted by the service manager from
one of the big local dealerships who does seem to know his business.  His
theory on the rotor warping was that it was caused by the heat stress of
heating up the rotor and pads by braking hard and then setting at a stop
light with the pads clamped against the rotor.  His solution with his own
car was to pull up to a light, but stop a bit short and let the car very
slowly creep ahead so the contact spot keeps moving.  Alternatively with
an automatic, shift to neutral and release the brakes (or use park if
you're on a hill).  He seemed to feel it was prolonging the rotor life of
his car.  

I'm not sure if I agree and it would seem that manuals should have fewer
problems than automatics since you don't have to hold it at a stop with
the brakes if this is true.

Howard Pletcher
Howteron Products Scout Parts

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