Re: Vibration - Saab NG900 & OG9-3 Bulletin Board - Saabnet.com
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Re: Vibration
Posted by Dean (more from Dean) on Sun, 20 Oct 2002 19:35:49
In Reply to: Vibration, RichF, Sun, 20 Oct 2002 18:52:28
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That wheel is probably bent. And yes it will balance on a balancing machine spinning it the air. So will a square wheel. Does not roll worth a D*mm.
So the tire could be out of round, same result. After the tire ages and the tire walls stiffen and the tread gets thinner, a bent wheel or out of round tire will show up, and you get out of balance and rythmic variations that you note. Rotate back to fron, one side at a time, and you will find the bad unit when the steering wheel starts shaking.
A wheel could have been distorted a lomg time ago, and the aged tire let you know. One usually does not bent a wheel on the back and not the front.
Higher tire pressure protects wheels. Pot holes bend wheels and in the cold, tire pressure drops and many do not add air as they should. The rule of thumb is around 1 PSI per 10F. But with 205/50-16's on alloys, I typically see more like 1.7 PSI per 10F.
posted by 65.68.10...
Posts in this Thread:
- Vibration, RichF, Sun, 20 Oct 2002 18:52:28
- Re: Vibration, Dean, Sun, 20 Oct 2002 19:35:49 <-- Viewing This Message
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