>         Ah Yes, Abd;
>         Another one comes to mine.
>         How about bypass caps.
>         Lou
>
> > Subject:      Re: [DC] Calculating thermal dissipation of external plane
> > heat s ink              area
> >
> > At 08:02 AM 11/17/99 -0800, Scott Decker wrote:
> > >I would like to share
> > >a comment I heard a looong time ago regarding vehicle brakes. One of
> the
> > >guys that worked for my father said, "Why would you turn the drums or
> > smooth
> > >the surface of those brake drums and disks? With all those deep scores
> > and
> > >valleys, look at all the extra surface area you have for friction"...
> > With
> > >that being said, sometimes it's all from a point of view...  BTW, he
> was
> > >kidding.
> >
> > Brakes are turned when one installs new pads because the new pads do not
> > match the scores in the drum or disk. It *might,* in fact, be somewhat
> > more
> > effective if the mating surfaces were matching but not "flat," but that
> > would be difficult to create by turning....
> >
> > Back when I had plenty of kids and little money, and I did my own
> brakes,
> > I
> > did not turn the drums; I just installed new brake pads. My theory was
> > that
> > the drums would quickly wear the pads to match, and vice-versa, and the
> > brakes, in fact, did work as I would have expected. That is, there was a
> > minor loss of braking power when the pads were new, which quickly
> > returned.
> > Never had a problem.
> >
> > The reason a shop won't do this may have more to do with legal and
> > liability issues than with safety per se. If there is a slight loss of
> > braking power, and then there is an accident, the brake shop could be
> > blamed even if the loss of braking power was basically irrelevant to the
> > accident. How could the matter be proven one way or another? So if the
> > drums are turned, the shop is safe. Besides, they get paid for it.
> >
> > Obviously, there may be other issues as well, not so easy to predict
> from
> > my desk....
> >
> > [log in to unmask]
> > Abdulrahman Lomax
> > P.O. Box 690
> > El Verano, CA 95433
> >
>