| [GMCnet] Tire rotation sequence & frequency [message #74912] |
Wed, 24 February 2010 16:46  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G’day,
Gary asked this question but I figured I’d start a new message so we can
find it easily.
I have rotated my tires twice so far and since they are radial I keep them
on the same side.
Front to the rear
Middle to the front
Rear to the middle
I did it at the end of each tour in the USA which is about 4000 miles.
Rob Mueller
Sydney, Australia
AUS '75 Avion-The Blue Streak TZE365V100428
USA '75 Avion-Double Trouble TZE365V100426
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Tire rotation sequence & frequency [message #74945 is a reply to message #74912] |
Wed, 24 February 2010 21:23  |
kingd
Messages: 592
Registered: June 2004
Karma: 2
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Senior Member |
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Regarding "rotating" radial tires, there are at least 2 schools of thought. 1 is that the rotating direction of the tire should not be chaged, This would mean if you moved a tire from one side to the other, the tire would have to be "flipped" The other "school" says don't worry about rotation direction. If some-one wants more info, ask and I'll ask my "tire technician" son.
DAVE KING
DAVE KING
lurker, wannabe
Toronto, Ontario, Canada
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| Re: [GMCnet] Tire rotation sequence & frequency [message #74947 is a reply to message #74945] |
Wed, 24 February 2010 21:45 |
GMCWiperMan
Messages: 1248
Registered: December 2007
Karma: 1
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Senior Member |
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In 1968 I put a set of then new to the US Michelin X tires on my car. A
year later I rotated them in the then-popular X pattern. Almost
immediately, the tires whose direction of rotation changed were unbalanced.
When I took them to one of the large tire chains in LA, they told me the
theory was that the radial sidewalls would "lean back" during use because of
their flexibility and the pliability of the rubber. When the direction of
rotation changed, the plies deform again to "lean back" in the opposite
direction. But, to reach the new stable condition, the cords passed through
the perfectly radial position where they developed a wrinkle and an un-round
condition -- not necessarily unbalanced.
I continued to drive the reversed tires for a while and they did indeed
improve.
I've been told that more modern radial plies are less prone to "leaning
back". I prefer to not risk fate.
Ken H.
On Wed, Feb 24, 2010 at 10:23 PM, Dave King <kingd@sympatico.ca> wrote:
>
>
> Regarding "rotating" radial tires, there are at least 2 schools of thought.
> 1 is that the rotating direction of the tire should not be chaged, This
> would mean if you moved a tire from one side to the other, the tire would
> have to be "flipped" The other "school" says don't worry about rotation
> direction. If some-one wants more info, ask and I'll ask my "tire
> technician" son.
>
> DAVE KING
> _______________________________________________
>
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| Re: [GMCnet] Tire rotation sequence & frequency [message #74954 is a reply to message #74947] |
Thu, 25 February 2010 06:18 |
Steven Ferguson
Messages: 3447
Registered: May 2006
Karma: 0
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Senior Member |
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I also have inquired about the rotation of radials and was pretty much
told the same thing Ken. The older radials did want to be kept
rotating in the same direction but not the new ones. Doesn't matter,I
still keep them on the same side.
On Wed, Feb 24, 2010 at 8:45 PM, Ken Henderson <ken0henderson@gmail.com> wrote:
> In 1968 I put a set of then new to the US Michelin X tires on my car. A
> year later I rotated them in the then-popular X pattern. Almost
> immediately, the tires whose direction of rotation changed were unbalanced.
> When I took them to one of the large tire chains in LA, they told me the
> theory was that the radial sidewalls would "lean back" during use because of
> their flexibility and the pliability of the rubber. When the direction of
> rotation changed, the plies deform again to "lean back" in the opposite
> direction. But, to reach the new stable condition, the cords passed through
> the perfectly radial position where they developed a wrinkle and an un-round
> condition -- not necessarily unbalanced.
>
> I continued to drive the reversed tires for a while and they did indeed
> improve.
>
> I've been told that more modern radial plies are less prone to "leaning
> back". I prefer to not risk fate.
>
> Ken H.
>
>
> On Wed, Feb 24, 2010 at 10:23 PM, Dave King <kingd@sympatico.ca> wrote:
>
>>
>>
>> Regarding "rotating" radial tires, there are at least 2 schools of thought.
>> 1 is that the rotating direction of the tire should not be chaged, This
>> would mean if you moved a tire from one side to the other, the tire would
>> have to be "flipped" The other "school" says don't worry about rotation
>> direction. If some-one wants more info, ask and I'll ask my "tire
>> technician" son.
>>
>> DAVE KING
>> _______________________________________________
>>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Steve Ferguson
'76 EII
Sierra Vista, AZ
Urethane bushing source
www.bdub.net/ferguson/
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