| [GMCnet] Fw: Subject: Re: (GMC Net) Dots on tires [message #353944] |
Mon, 20 April 2020 15:07  |
THOMAS R WHITTON
Messages: 47
Registered: September 2016
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Oops, using wrong subject before. Sorry.
There has been a lot about tires on this site but I don't remember this subject being addressed.
Reasons for Yellow and Reddots on new tires
The Yellow Dot
When tires are made, they are almost never perfectly balanced.Most manufacturers will place a yellow dot on the section of the tire wherethere is least weight. The technician is then supposed to line up this yellowdot to where the valve stem is located. Where the valve stem is located isthe heaviest point of the wheel. By aligning the lightest spot on thetire with the heaviest point on the wheel, the tire/wheel balance is as close tooptimal as can be. As such, you won't be using as many lead weights aroundthe wheel to balance out the tire and wheel. Using fewer weights means you geta more balanced wheel, which then means a quieter, more comfortable ride, and alonger-lasting tire. All these add up to significant savings for theuser.
The Red Dot
In the same way tires are never perfectly balanced from themanufacturer, tires are never perfectly round, either, even when new. They havehigh and low points because of where the belts are joined, and these points cancause vibrations when a tire is rolling. The red dot indicates the tire's highpoint. Most of the time, a wheel will also have a dot—either a drilled dot or asticker to indicate its low point. If you have these marks, you should alignthe red dot with the mark on the wheel. By doing this, you minimize thevibration caused by the high point of the tire. Minimized vibration is a goodthing and ultimately also saves you money.
Tom Whitton
26 foot updated GMC
Paducah, KY
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| Re: [GMCnet] Fw: Subject: Re: (GMC Net) Dots on tires [message #353967 is a reply to message #353944] |
Tue, 21 April 2020 12:21  |
Scott Nutter
Messages: 782
Registered: January 2015
Location: Houston/San Diego
Karma: 4
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Thanks Tom.
More good info that I didn’t know. I am smarter now!!
I wonder how many tire installers also don’t know this?
Thanks, Scott.
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, Dave Lenzi super duty mid axle disc brakes, tankless water heater, everything Lenzi. Alex Ferrera installed MSD Atomic EFI
Houston, Texas
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| Re: [GMCnet] Fw: Subject: Re: (GMC Net) Dots on tires [message #353982 is a reply to message #353944] |
Tue, 21 April 2020 16:33 |
Scott Nutter
Messages: 782
Registered: January 2015
Location: Houston/San Diego
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I wonder if the Alcoa’s on our GMC’s also have a mark to determine the low spot on the rim? If they do I would assume the mark to be on the inside or backside. Would it be a punch mark?
Scott.
Scott Nutter
1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final drive, Quad bags, Dave Lenzi super duty mid axle disc brakes, tankless water heater, everything Lenzi. Alex Ferrera installed MSD Atomic EFI
Houston, Texas
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| Re: [GMCnet] Fw: Subject: Re: (GMC Net) Dots on tires [message #353983 is a reply to message #353982] |
Tue, 21 April 2020 16:43 |
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I expect the Alcoas are perfect! No dot needed.
On Tue, Apr 21, 2020 at 4:33 PM Scott Nutter via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I wonder if the Alcoa’s on our GMC’s also have a mark to determine the low
> spot on the rim? If they do I would assume the mark to be on the inside
> or backside. Would it be a punch mark?
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
> installed MSD Atomic EFI
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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bdub
bdub.net
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| Re: [GMCnet] Fw: Subject: Re: (GMC Net) Dots on tires [message #353984 is a reply to message #353982] |
Tue, 21 April 2020 16:50 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Alcoas, Eagles, and many other fully machined wheels do not usually have
heavy or light sides. They start out with a solid block of virgin aluminum
or alloy's of it. They are fully machined in a multi axis computerized
machine that closely resembles a milling machine. Extreme precision
machinery. No egg shapes here.
Jim Hupy
Salem, Oregon
On Tue, Apr 21, 2020, 2:33 PM Scott Nutter via Gmclist <
gmclist@list.gmcnet.org> wrote:
> I wonder if the Alcoa’s on our GMC’s also have a mark to determine the low
> spot on the rim? If they do I would assume the mark to be on the inside
> or backside. Would it be a punch mark?
> Scott.
> --
> Scott Nutter
> 1978 Royale Center Kitchen, Patterson 455, switch pitch tranny, 3.21 final
> drive, Quad bags, tankless water heater, everything Lenzi. Alex Ferrera
> installed MSD Atomic EFI
> Houston, Texas
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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