buffing was a step in preperation of the inside of the tire for repairs of
punctures in preperation for both hot or cold patches. i have not seen
anyone do hot patches since i was working in gas stations back in the early
seventies. buffing the rubber was done either by a drill mounted bit or
sanding with sand paper or using a funny cheese grater kind of thing in
order to rough up the rubber to get the cement for the patch to get proper
adhesion to the tire. this was the only way to repair a puncture back in
the old days prior to todays plug guns or internal "radial" pull through
with a stem attached type of patches.
shaving was used to true comercial tires back in the good old days before
radial tires. shaving was a way to save tires with damaged (cupped or
choppy) tread when it had significant useable tread left. shaving is also
a way to true a tire mounted on a specific rim . in racing it was found
that(when a treaded tire was required by rules in certain classes or needed
such as a rain tire) shaving a tire tread down to around 1 to 3 thirty
seconds of remaining tread depth that the tread had less tendancy to "squirm
or roll" on hard cornering . this allowed more tire to contact the road in
corners an gave a more positive feel in handling thus allowing faster speeds
in corners with improved traction through a larger contact patch with the
track. it took racers no time at all to figure out how this shaving machine
worked in making tires difrent diameters andstill having a matched set
acording to the labels. using tires of difrent diameter is commonly refered
to as tire stagger. this allows a mechanic to adjust the wedge of the car
for cornering ( more popular in cars that travel 1 way around a circle or
oval type of track). although it has been sucessfully used on road course
cars too.
i run shaved BFG comp TA R1's on my bugeye since a treaded tire isrequired
in my vintage class in hillclimbing. they work real slick! almost like a
slick!
chuck.
no personal blah-blah-blah!
and now for something completly diffrent.
|