Re: bmw-digest V9 #1535

["Gary Derian" <gderian@xxxxxxxxxxxx>]

The proper way to match mount wheels and tires is to locate the high spot of
the tire's first harmonic of the radial force variation with the low spot of
the wheel runout.  Tires are marked from the factory.  Wheels are marked but
also can be measured with simple tools.

Mounting tires to minimize the balance is incorrect from a smooth ride
standpoint.

Gary Derian <gderian@domain.elided>

> It is very difficult to get a whell truly balanced this way, You have to
add
> more weights in various other positions, and even then it may not work
well.
> If you are that worried about it, just take them off for the show, and get
> them rebalanced afterwards. A concours judge should not be marking you
down
> just because your car is properly maintained.
>
> You can also try to rotate the tyre on the rim to get it closer to
balance.
> My E30 325i has a single 10 gram weight on the inside of every wheel, and
> one required a 15 gram weight on the outside. That was the factory 15"x7"
> crosspokes and Firestone Firehawk V 205-55-15's.
>
> Allan.
>
>
> ----- Original Message -----
> From: <TEAShea@domain.elided>
> To: <bmw@domain.elided>
> Sent: Saturday, July 29, 2000 1:45 PM
> Subject: Re: bmw-digest V9 #1535
>
>
> > My new 330i has stick on wheel weights placed on the outside of the
rims.
> I
> > am preparing this car for concours show competition and would like to
> replace
> > these with weights on the inside of the rim.  Is this ok or would it
cause
> > problems.  Thanks.
> >
> > Tom Shea
> >
> > --
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>
>
>
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