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09-04-2008, 06:37 PM | #1 |
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Steering vibration from wheel spacers
Ugh. Just after getting very stoked on the visual improvement from my wheel spacers I get a steering vibration problem. Details:
Result: Annoying rotational steering wheel vibration. A bit intermittent (i.e. NOT persistent) but clearly more noticeable, i.e. larger amplitude and occurs more often on more road surfaces. Anyone else notice this? Any tips or solutions? By the way my tires are not heavily worn and the rest of the suspension, chassis are 100% stock. |
09-04-2008, 06:52 PM | #3 |
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09-04-2008, 08:30 PM | #4 |
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Did you try removing them and reinstalling? just to make sure everything was mating up correctly. When the wheel is in the air, give it a spin and check for any misalignment/wobble/etc. Could just be a small burr on one surface.
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09-05-2008, 06:33 PM | #5 |
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I've seen a few causes.
1: Sometimes wheel weights get knocked off or lost when pulling wheels on/off the car. 2: If the wheels were out of balance the spacers would magnify the effect. 3: Its possible that the wheels didn't seat correctly on the hubs. Did you lower the car to the ground before torquing the wheels? I have had better luck torquing the lugs before putting substantial weight on the wheel (i.e. lowering the car more than was necessary to keep the wheel from turning).
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09-12-2008, 01:00 AM | #6 |
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Swamp
Anyway you could snap some quick pics with this setup? Those are the same size spacers I am about to put on and woud love to see how they would turn out before installing. BTW any reason why you did not try 10mm in the front and the 15'smm in the back? |
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09-12-2008, 01:46 AM | #7 |
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I have always gone by the notion that spacers in general are just a bad idea... (maybe it was because of a wheel from a Civic that came flying off the car at me at a SCCA meet a few years ago)
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09-12-2008, 07:51 AM | #8 |
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The spacers could be magnifying an existing imbalance or out-of-round condition in a front tire. Also, this may be incompatible with the natural frequency of the front control arm bushings. Change one thing, it affects others. Ground-Control sells fantastic control arm bushings, but I'm not sure if they will work in the e9x.
Most likely, though, is an amplified pre-existing problem.
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09-12-2008, 08:11 PM | #9 | |
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Result: Still vibrating. I is intermittent though. Very smooth roads don't cause any vibration. I recall a bit of this before the spacers but I'm pretty sure it is worse after. I am going to pull only the front spacers and confirm the difference. What should be a no-brainer cosmetic mod has turned into this. Not happy here at all. |
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09-12-2008, 08:11 PM | #10 |
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Replied via pm. Digital camera is broken as well. You can find pics of this setup here on the forum already.
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09-12-2008, 08:53 PM | #11 | |
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I would never use them for cosmetic reasons. In that application you are using them for a negative purpose. That is moving the wheels away from the designed fitment. If you had aftermarket wheels and were attempting to correct a poor offset, then it would make sense. But in this case you are altering a proper offset and problems are not a surprise.
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09-12-2008, 10:02 PM | #12 |
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As you are going to do....go back to stock, and see if the issue resolves itself. Let us know, as I wish to do this myself.
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09-13-2008, 03:32 PM | #13 | |
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However are you saying that any movement of the stock contact patch location, either by a wheel itself or by a spacer is going to create problems? Does not sound likely to me. Can you define a "poor offset"? Thanks again. |
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09-13-2008, 04:44 PM | #14 | |
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I don't believe the spacers are causing your vibration. They are increasing the cars sensitivity to a pre-existing problem. A subtle distinction, but probably true, none-the-less. I am certain you have a tire out of balance or out of round. BMWs are notoriously sensitive to these sorts of things. |
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09-14-2008, 04:57 PM | #15 | |
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I should go for a rebalance. Any idea how to get this done in the most sensitve/accurate way? I.e. better than your average Tire Rack schmuck will do it |
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09-14-2008, 05:39 PM | #16 | |
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The tire may be out of round, in which case a small amount of shaving will be necessary. If you find a shop that can correct an out of round condition, I'll assume they also understand balancing to less than 1/8 oz. |
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09-15-2008, 01:45 AM | #17 |
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For what it's worth, my father had a steering vibration in his MB CLS... took the car to the dealership and 2 independent shops, they all rebalanced the wheels and it didn't go away. He took it to another shop and they found that the rear left wheel was very slightly deformed, but not visibly. Once it was replaced the high speed vibration went away.
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09-19-2008, 01:08 PM | #19 |
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We have a winner here. Before removing the spacers I had the fronts rebalanced and told the tire shop to do the best job they can, go slow be meticulous etc. Before making any changes they noticed a definitie out of balance. They corrected it and the problem is now almost gone. It is even better than before the spacers. Any vibration left I suspect its entirely road induced. Nice job with the factory wheel balance BMW... NOT.
Last edited by swamp2; 09-19-2008 at 10:13 PM.. |
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09-19-2008, 06:54 PM | #20 |
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Glad to see it's solved!
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09-20-2008, 10:06 AM | #21 |
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I just put the 18s I bought here on my e46. I noticed a light vibration through the steering wheel as well. These wheels have a large offset difference from the stock e46 wheels (28mm vs. 46mm). I was afraid I had created a similar situation to Swampy, but had a balance done yesterday before driving 4 hours to Allentown. No issue whatsoever after the balance.
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