[net.auto] Tire question

swc@cbscc.UUCP (Scott W. Collins) (07/06/84)

A general question about tires....

If a wheel has been balanced and it still shimmies at most speeds (and
wobbles slightly up and down at a crawl and seems out-of-round when spun
up on a jack), does this mean that the tire is out-of-round?  Let us
assume that the wheel bearing and shaft is ok.

I was under the impression that a wheel balancing would solve the woes
of an out of round tire.  Could a belt possibly have snapped? (Rayon/nylon
belted radials, Uniroyal).

I tire of this problem (pun definitely intended).
Scott W. Collins
ihnp4!cbscc!swc

seifert@ihuxl.UUCP (D.A. Seifert) (07/07/84)

> If a wheel has been balanced and it still shimmies at most speeds (and
> wobbles slightly up and down at a crawl and seems out-of-round when spun
> up on a jack), does this mean that the tire is out-of-round?  Let us
> assume that the wheel bearing and shaft is ok.
> 
> I was under the impression that a wheel balancing would solve the woes
> of an out of round tire.  Could a belt possibly have snapped? (Rayon/nylon
> belted radials, Uniroyal).

You can balance a square tire, but you won't get a smooth
ride from it.

Balancing does not correct out-of-round, it corrects uneven weight
distribution.  To get a tire round, the high spots can be shaved off.
Obviously there is a limit to how much you can shave off.
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