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RE: Wheel Balance

To: "'Steve Laifman'" <laifman@flash.net>,
Subject: RE: Wheel Balance
From: Frank Marrone <marrone@wco.com>
Date: Fri, 1 May 1998 22:51:11 -0700
----------
Steve said,

Bill,

I haven't had my wheels balance on the car since 1956.  This is not a =
good
method.  The electronic off-car balancers are the only way to go.  Make =
sure
they use new weights.

Now, as for that vibration, your rotors just are not large enough in =
diameter,
or mass, to cause anything more than a bad judder when you use them.  =
You didn't
specify if this vibration changes with speed, has any particular =
frequency, gets
bad at, say 60 mph, and goes away at 75 ("But Officer, I HAVE to drive =
that fast
or it bounces all over the road").

This may be true for Tigers but out of balance drums or disks can be a =
problem on some cars.  this seems to be common with aftermarket parts a =
lot.  Of course us Tiger folk don't have that problem.  Balancing on the =
car is about the only way to remedy the situation.  Nothing says you =
can't first balance the wheels off the car first and then add or remove =
weight to the drum/disk to improve on car balance. =20

I've also had bent or out of round tires or rims that were "in balance" =
like Steve mentioned.

Sometimes shocks can be the culprit.  Your suspension can be resonant =
with just the right road surface conditions to appear to have a =
vibration with a speed dependency like bad balance on a Tire. =20


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