Yeah! What Chuck said. When I was a young man working in a service station
(when you could have your car repaired at a gas station) I used the hot
patch method of repairing tires. We never called it buffing though. We
called it preparing for the patch. We used the automotive equivilent of the
cheese grater to prepare the surface for the hot goo and rubber.
----- Original Message -----
From Charles Christ <cfchrist at earthlink.net>
To: <spridgets@autox.team.net>
Sent: Friday, January 14, 2000 6:06 PM
Subject: shaving vs. buffing
> 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.
>
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