Wheel shimmy
Thread Starter
Driver School Candidate
Joined: May 2013
Posts: 9
Likes: 0
From: MA
Wheel shimmy
I have done search and read many posts but I have seem to come up empty handed. Here is my issue:
2002 SC430 with 50k miles. I have a set of aftermarket Dolce rims that are 18" with the stock size tires. I have the eccentric spacers on them as well. They have been mounted and balanced. I also have a set of Dunlop snow tires on my stock rims. Obviously I do a seasonal change over.
With either set of tires I am getting a steering wheel shake at 60-65 mph. By 80mph its gone and the car glides perfectly. There is no pulsation in the brake pedal and there is minimal wear on the pads. Below 60mph there is no issues as well.
Tires are wearing evenly. Some roads will make the movement worse, but it always goes away at around 80 mph.
Now both sets of tires were mounted and balanced by the same shop. I assume that could be it...there machine is faulty. But I would like some other possibilities before I try somewhere else.
Thanks
2002 SC430 with 50k miles. I have a set of aftermarket Dolce rims that are 18" with the stock size tires. I have the eccentric spacers on them as well. They have been mounted and balanced. I also have a set of Dunlop snow tires on my stock rims. Obviously I do a seasonal change over.
With either set of tires I am getting a steering wheel shake at 60-65 mph. By 80mph its gone and the car glides perfectly. There is no pulsation in the brake pedal and there is minimal wear on the pads. Below 60mph there is no issues as well.
Tires are wearing evenly. Some roads will make the movement worse, but it always goes away at around 80 mph.
Now both sets of tires were mounted and balanced by the same shop. I assume that could be it...there machine is faulty. But I would like some other possibilities before I try somewhere else.
Thanks
All I can say is, history tells me that when it shakes between 60-65 it is normally the balance. That is classic. I have had the same situation a number of times over the years and it has always been balance.
Lead Lap
Joined: Jun 2011
Posts: 541
Likes: 7
From: Iowa
I'm really partial to loaded balancing ala Road Force. I have no connections with the manufacturer - I just have seen good results on my SC when I've had the wheels balanced with this machine.
http://www.gsp9700.com/
http://www.gsp9700.com/
Pit Crew
Joined: Dec 2004
Posts: 103
Likes: 9
From: Texas
I used to have shimmy problems with every set of tires I bought from Discount Tire. The most recent set I used Tiremax. Tiremax has turned out to be much much better.
I should add that Tiremax's balancing machines were brand new and in perfect calibration. Discount Tire....not so much.
I should add that Tiremax's balancing machines were brand new and in perfect calibration. Discount Tire....not so much.
Last edited by thombiz; May 31, 2013 at 05:37 PM.
Instructor
Joined: Jul 2007
Posts: 898
Likes: 195
From: NJ
I have done search and read many posts but I have seem to come up empty handed. Here is my issue:
2002 SC430 with 50k miles. I have a set of aftermarket Dolce rims that are 18" with the stock size tires. I have the eccentric spacers on them as well. They have been mounted and balanced. I also have a set of Dunlop snow tires on my stock rims. Obviously I do a seasonal change over.
With either set of tires I am getting a steering wheel shake at 60-65 mph. By 80mph its gone and the car glides perfectly. There is no pulsation in the brake pedal and there is minimal wear on the pads. Below 60mph there is no issues as well.
Tires are wearing evenly. Some roads will make the movement worse, but it always goes away at around 80 mph.
Now both sets of tires were mounted and balanced by the same shop. I assume that could be it...there machine is faulty. But I would like some other possibilities before I try somewhere else.
Thanks
2002 SC430 with 50k miles. I have a set of aftermarket Dolce rims that are 18" with the stock size tires. I have the eccentric spacers on them as well. They have been mounted and balanced. I also have a set of Dunlop snow tires on my stock rims. Obviously I do a seasonal change over.
With either set of tires I am getting a steering wheel shake at 60-65 mph. By 80mph its gone and the car glides perfectly. There is no pulsation in the brake pedal and there is minimal wear on the pads. Below 60mph there is no issues as well.
Tires are wearing evenly. Some roads will make the movement worse, but it always goes away at around 80 mph.
Now both sets of tires were mounted and balanced by the same shop. I assume that could be it...there machine is faulty. But I would like some other possibilities before I try somewhere else.
Thanks
I would just rotate regularly - perhaps every 3 or 4 thousand miles.
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Driver
Joined: Jun 2007
Posts: 188
Likes: 3
From: Ireland
Jsbptown, have a look at this. I intend this to be the master thread for 2013 for getting rid of wear related wobbles on a SC 430.
https://www.clublexus.com/forums/sc-...k-bushing.html
https://www.clublexus.com/forums/sc-...k-bushing.html
Pit Crew
Joined: Jun 2001
Posts: 184
Likes: 7
From: USA
Thread Starter
Driver School Candidate
Joined: May 2013
Posts: 9
Likes: 0
From: MA
Alex818: No spacers. Hub eccentric rings on the Dolce wheels though.
Its important to note several things:
1. Wheel vibration is about 1" to the left, then to the right, then back etc starting at about 60 and is totally gone by 80.
2. Car handles well. Tire wear is perfect.
3. No brake pulsation through the pedal at all
4. Just past inspection with tests for worn front end parts.
5. Exact same issue whether its my aftermarket rims with summer tire or my stock rims with winter tires.
Since the handling is fine (no wandering, no excess movement) I don't think its worn components.
It is the same shop that balanced all 8 wheels. Maybe they have defective equipment. Since there is no simple consensus I will try to find a road force balance location,
Its important to note several things:
1. Wheel vibration is about 1" to the left, then to the right, then back etc starting at about 60 and is totally gone by 80.
2. Car handles well. Tire wear is perfect.
3. No brake pulsation through the pedal at all
4. Just past inspection with tests for worn front end parts.
5. Exact same issue whether its my aftermarket rims with summer tire or my stock rims with winter tires.
Since the handling is fine (no wandering, no excess movement) I don't think its worn components.
It is the same shop that balanced all 8 wheels. Maybe they have defective equipment. Since there is no simple consensus I will try to find a road force balance location,
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osomoso
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