Installation Banquet Autocross - Porsche Club of America | San ...
Installation Banquet Autocross - Porsche Club of America | San ...
Installation Banquet Autocross - Porsche Club of America | San ...
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W i n d b l o w n W i t n e s s<br />
38<br />
HEADS UP!<br />
TECH Talk<br />
”Look more closely at your three-piece wheels”<br />
During a recent wheel change, I noticed what appeared<br />
to be a crack on one <strong>of</strong> the webs <strong>of</strong> my Kinesis<br />
K-20 wheels. Closer inspection revealed that about<br />
half <strong>of</strong> the webs had cracks. Yikes! I was hoping that I<br />
had just one defective wheel but it turned out that both<br />
<strong>of</strong> my rear wheels displayed the same cracks on the<br />
webs. In fact, wheel number two had twice as many. I<br />
counted 14 cracks on one wheel alone. The front<br />
wheels display no cracks. The wheels are approximately<br />
8 years old and doubtless are reacting to the constant<br />
torque <strong>of</strong> events like autocrosses and time trials.<br />
Looking at the wheel head on, it looks like a perfectly<br />
sound wheel. It is only after rotating the wheel<br />
that one might be able to spot the cracks. The cracks<br />
are most prominent from the rear side <strong>of</strong> the wheels.<br />
As a former Tech Inspector with a few years <strong>of</strong><br />
experience, I’m a bit ashamed to admit that this unsafe<br />
condition progressed to the point that it did before I<br />
was able to detect it. There’s always more to learn. The<br />
important thing is that others pr<strong>of</strong>it from this and learn<br />
to look more closely at their lightweight three-piece<br />
www.pcasdr.org<br />
by Tom Comeau<br />
wheels. I shudder to think what would happen if one<br />
<strong>of</strong> these wheels shattered at speed. Hereinafter referred<br />
to as “shatter shudder”——never mind...<br />
We have a splendid safety record and we should<br />
strive to maintain it.<br />
I now have two new rear wheels and yes, they’re<br />
painted that same “splendiferous” yellow as the originals<br />
on my RS <strong>America</strong>.<br />
By the way, Kinesis in Vista, has been bought out and<br />
will now operate out <strong>of</strong> Corona.