Is it just BMW that does not recommend tire rotation?

Malt_Hound wrote:
> tech27 wrote:
>
>> "Scott en Aztlán" > wrote in message
>> ...
>>
>>> On Wed, 18 May 2005 00:34:49 -0400, "tech27"
>>> > wrote:
>>>
>>>> Hmm... But new BMWs have all routine maintenance included in the price
>>>
>>>
>>> of the car (notice I didn't say "free") - so what price is there for
>>> the customer to balk at?
>>>
>>
>>
>> The cost of a dynamic balancing after the rotation, not the cost (if
>> any) to rotate the tires.
>>
>
> There is no need to dynamically balance the wheel unless the tires are
> removed and reinstalled on different wheels for some reason. Dynamic
> balancing is not done "on the car", but rather, on a dynamic balancing
> machine.
>
> -Fred W

Actually, dynamic balancing can be done either on the car (using a
machine made for that purpose) or with just the wheel/tire combo on a
balancing machine. "Dynamic" merely means that the tire is spun on the
machine and balance is measured in 2 axes, as opposed to the old static
balance using a bubble level.

Really, "on the car" balancing should never show much improvement over
off-the-car balancing unless the hub is out of balance or the wheel
doesn't index properly onto the hub- both mechanical defects that SHOULD
be repaired.

DTJ wrote:
> On Thu, 19 May 2005 08:16:42 -0400, Malt_Hound
> > wrote:
>
>
>>There is no need to dynamically balance the wheel unless the tires are
>>removed and reinstalled on different wheels for some reason. Dynamic
>>balancing is not done "on the car", but rather, on a dynamic balancing
>>machine.
>
>
> Well we sure had the ability to dynamically balance tires on the
> vehicle when I was in school. I know you don't see them very often,
> but you can do it both ways.

Yes, it is a possibility to do "on the car" balancing, but that is not
(necessarily) what is meant by dynamic balancing. Dynamic balancing
only refers to the idea that the wheel is rotated (either on or off the
car) during the balancing.

I'm of the mind that "on the car" balancing is only a band-aid approach
to some other problem with the wheel, hub or axle. You should be able
to balance a wheel&tire and then mount it on any axle and be good to go.

-Fred W

On Thu, 19 May 2005 08:16:42 -0400, Malt_Hound
> wrote:

>There is no need to dynamically balance the wheel unless the tires are
>removed and reinstalled on different wheels for some reason. Dynamic
>balancing is not done "on the car", but rather, on a dynamic balancing
>machine.

Well we sure had the ability to dynamically balance tires on the
vehicle when I was in school. I know you don't see them very often,
but you can do it both ways.