I don't know about the current Pirelli line, but - Saab General Bulletin Board - Saabnet.com
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I don't know about the current Pirelli line, but
Posted by Noel (more from Noel) on Mon, 19 Jul 2004 14:53:41
In Reply to: tire mount/balance getting vibrations, awg, Mon, 19 Jul 2004 07:37:58
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Pirellis used to be known to be hard to balance. I've never run any of their real high-perf tires on my cars, but did have some balance probs with lesser models.
I suspect Ari is right that you have an out of round tire. It can be so slight that you'll only notice it while driving and it could well vary by speed. Do as he suggests and move them one at a time to the rear. Involve the shop if you can, as it could be a warranty issue so you'd get a new tire. If they aren't involved they can claim you flat spotted the tire, which can have similar vibration issues.
Strange as it may sound, you could actually have two out of round tires and the vibration changes as you drive and the high spots get in synch. I had two slightly flat spotted tires on my old C900 and the vibration would come and go until I finally did a 500 highway run that was enough to wear down the bad spots.
N
posted by 69.163.42...
Posts in this Thread:
- tire mount/balance getting vibrations, awg, Mon, 19 Jul 2004 07:37:58
- I don't know about the current Pirelli line, but, Noel, Mon, 19 Jul 2004 14:53:41 <-- Viewing This Message
- Balance and vibration, Ari
, Mon, 19 Jul 2004 11:21:43 - already checked torque & tire pressure (nm), awg, Mon, 19 Jul 2004 08:03:58
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