I have a TSV (Triumph Support Vehicle) that eats rotors for lunch. I'm
on my 3rd set in 5 years (no, it's not my driving style).
I have several times replaced one or the other disk on this and other
caeds, but not both. When I do that I make a point of taking both the
new and the old down to my local machinist & having them trued up. It
costs $10-15 ea. in overpriced Silicon Valley and is done while I wait.
The manuals tell you this is okay, as the pads adjust themselves to
equalize for differing thicknesses of the rotors. In fact, with disks
it's ok to use a disk with some minor scoring in it (unlike drum
brakes), as the pads will wear to conform with the disk , so long as the
disk is not out of true.
On the subject of pad replacement, IMHO they shoul only be replaced in
full sets, as they wear much more quickly than rotors. I've had one
disintegrate completely when exiting the freeway (the TSV mentioned
above), although more than double the tolerable thickness.
Alan Myers
Joe Curry wrote:
> Gernot (and all who feel the same way).
> The original question dealt with an extreme situation where the rotor
> on
> one side was metal-to-metal with the pad and the other side was fine.
> Not having the luxury of being able to measure the good rotor to see
> if
> it was within spec., I must assume it is. Therefore, I will argue
> with
> anybody who feels that replacing only one rotor is irresponsible.
>
> I have purchased individual rotors on several occasions from reputable
>
> sources (VB for the Spit) and have not had any brake pull or wear
> problems associated with doing so.
>
> While, I don't recommend replacing the pads individually, I can so no
> valid reason to replace a perfectly good rotor if the one on the
> opposite side has failed because of a caliper problem.
>
> But as I have stated above, one must verify that the rotor is still
> with
> in spec. and hasn't been turned below the useable range.
>
> Joe Curry
>
> Gernot Vonhoegen wrote:
> >
> > If you folks are talking about brake discs, it is extremely bad
> practise
> > to replace single brake discs at a time. I guess probably you
> recommend
> > replacing the pads on the side you replace the disc as well? Apart
> from
> > that it will be difficult to get only one disc and any place with a
> good
> > reputation should not sell you a single disc.
> >
> > If I confused matters, my humble appologies.
> >
> > Gernot
> >
>
> --
> "If you can't excel with talent, triumph with effort."
>
> -- Dave Weinbaum in National Enquirer
--
MZ
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