Wheel Weight Placement vrs Rhythmic Vibrations
Thread Starter
Pro
Joined: Oct 2006
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From: Prescott Valley Arizona
Wheel Weight Placement vrs Rhythmic Vibrations
Curious as to an issue with Rhythmic Vibrations:
Those with the vibrations are your weights attached to the leading edges of the wheel both inside and out or inside the bell where they are not visible?
Those with the vibrations are your weights attached to the leading edges of the wheel both inside and out or inside the bell where they are not visible?
Instructor
Joined: Oct 2005
Posts: 150
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From: Wisconsin
98 coupe A4 with polished thin spokes and my weights are on the inside of the wheel (not inside the tire) just as close to the center of the rim as possible and I am running run flats and have no vibration at any speed. find the best tire machine in your area to have yours balanced. Make sure the weights don't hit the brake caliper 
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
My weights are also in the center of the wheel but I DO have the rhythmic vibration. But I also have a known bad LR tire that was crushed by an inept tire mechanic installing em (original EMTs) unto my new thin spokes. So all this happened at once, new wheels = vibration. I found the bad tire by getting them road force balanced. The tire showed 36 lbs of force and the whole wheel/tire assy showed 41lbs...
Hope that helps ya somehow...
Hope that helps ya somehow...
Thread Starter
Pro
Joined: Oct 2006
Posts: 654
Likes: 1
From: Prescott Valley Arizona
My weights are also in the center of the wheel but I DO have the rhythmic vibration. But I also have a known bad LR tire that was crushed by an inept tire mechanic installing em (original EMTs) unto my new thin spokes. So all this happened at once, new wheels = vibration. I found the bad tire by getting them road force balanced. The tire showed 36 lbs of force and the whole wheel/tire assy showed 41lbs...
Hope that helps ya somehow...
Hope that helps ya somehow...
Now when you say center, am I to understand the weights are laid in the measured center (wheel edge to wheel edge) and none are applied to the inside or outside rim edge?
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
If it is a Goodyear- they will replace under six months and 2/32 wear. 36 is quite high from what I've had.
Now when you say center, am I to understand the weights are laid in the measured center (wheel edge to wheel edge) and none are applied to the inside or outside rim edge?
Now when you say center, am I to understand the weights are laid in the measured center (wheel edge to wheel edge) and none are applied to the inside or outside rim edge?
On my wheels some of the wts are closer to the spokes, some are closer to the inner edge to get a balanced wheel/ tire combination
I also put HVAC alumium tape over the stick on wts to assure they stay in place.
No virations here
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Race Director
Joined: Oct 2000
Posts: 14,064
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From: N. Alabama
The last two sets of tires that I have mounted, toyos and Firestone WOs, I went with static (one weight in center inside of wheel) as opposed to dynamic balancing (a weight on the inside lip as well as outside lip). Of course, the balancing of each type is on the same machine, just programmed differently. I believe I like the static mode better so far.
Thread Starter
Pro
Joined: Oct 2006
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From: Prescott Valley Arizona
That may be the problem. wts should be placed on the inside of the rim where they are needed.
On my wheels some of the wts are closer to the spokes, some are closer to the inner edge to get a balanced wheel/ tire combination
I also put HVAC alumium tape over the stick on wts to assure they stay in place.
No virations here
On my wheels some of the wts are closer to the spokes, some are closer to the inner edge to get a balanced wheel/ tire combination
I also put HVAC alumium tape over the stick on wts to assure they stay in place.
No virations here
Last edited by Burgie; Mar 17, 2007 at 06:49 PM. Reason: spelling
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
That is how mine are currently set up and suspect to what is causing a rhythmic vibration-wheels are Z06 Motorsports OE Creations. If I understand the other writer, the weights should follow a middle line of the wheel (rear 5 1/4") in from the inside on the rears and 4 1/4" in on the fronts-make sense?
Wts should go where they are needed, not on the center line.
The place the wt is put on changes with the new tires too. Not all the same tires are equal wt.
I normally have 8 wheels mounted and ballanced at a time. The wts dont seem to go into the same places with each mounting.
Last edited by AU N EGL; Mar 17, 2007 at 07:15 PM.
Thread Starter
Pro
Joined: Oct 2006
Posts: 654
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From: Prescott Valley Arizona
Check those OE Creation wheels. they may not be as balanced as they should be. and not correctable with weights.
Wts should go where they are needed, not on the center line.
The place the wt is put on changes with the new tires too. Not all the same tires are equal wt.
I normally have 8 wheels mounted and ballanced at a time. The wts dont seem to go into the same places with each mounting.
Wts should go where they are needed, not on the center line.
The place the wt is put on changes with the new tires too. Not all the same tires are equal wt.
I normally have 8 wheels mounted and ballanced at a time. The wts dont seem to go into the same places with each mounting.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Good Luck - Hope you can feel a difference.
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
If it is a Goodyear- they will replace under six months and 2/32 wear. 36 is quite high from what I've had.
Now when you say center, am I to understand the weights are laid in the measured center (wheel edge to wheel edge) and none are applied to the inside or outside rim edge?
Now when you say center, am I to understand the weights are laid in the measured center (wheel edge to wheel edge) and none are applied to the inside or outside rim edge?
My vibrations start @ 70ish MPH...
I hope it's those wheels or a wheel that can easily be returned and replaced, I know you've been batteling this for a long time!
Last edited by tstar; Mar 18, 2007 at 12:35 AM.
Team Owner
Joined: Sep 2003
Posts: 43,084
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From: Raleigh / Rolesville NC
What do your tires look like ??
Thread Starter
Pro
Joined: Oct 2006
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From: Prescott Valley Arizona
My tires are new (five months old) and a right rear wheel was replaced as the Road force showed the assembly at 19. I've had the alignment and basically waiting or vasilating to try a center balance or just wait and do a remount on factory wheels.
Le Mans Master
Joined: May 2006
Posts: 5,987
Likes: 18
From: DuBois PA
St. Jude Donor '11-'12-'13-'14-'15
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Rember to clean the inside of the rim with spray brake cleaner. If you have stick on wts take them off prior to remount and clean the rim.
Tire weights are not evenly distributed around the whole tire. It is close but not exact.
Good Luck Guys