Wheel Shimmy/Wobble - Page 2 - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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#16 (permalink) Old 07-02-2009, 11:53 PM
OMFG another one!?
 
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witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice witeshark is just really nice
Ah, thanks BimmerE39, there's a nice buffer post

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#17 (permalink) Old 07-02-2009, 11:57 PM
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Ah, thanks BimmerE39, there's a nice buffer post
Thanks witeshark! I try to keep it real from time to time.
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#18 (permalink) Old 07-03-2009, 09:36 PM
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well, I gotta tell ya that I don't it's faulty components...sounds like faulty installation to me...whaddya think? You said you did yourself right? I don't think that that many parts could be faulty at once. The only thing common to your description is the installer....hmmm... that would be you right?
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#19 (permalink) Old 07-03-2009, 09:52 PM
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preloading

ever heard of preloading busings and bearings? Big thing in driveshafts and especially front end components. In case you haven't, it means that when you replace things like control arm bushings, strut assemblies, tie rods, sway bars and such you do NOT tighten them up to proper torque specs until the car is down off the jacks. The total weight of the car must be on these parts and then (and only then) do you tighten them down completely. The failure to due so leads to poor results and/or premature failure of the new parts themselves. You are playing around with very stressed parts and if you don't do this just right you are doing yourself and your wallet a major disservice...not to mention your safety.....peace...happy 4th...cliff
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#20 (permalink) Old 07-03-2009, 10:09 PM
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Originally Posted by silversled View Post
well, I gotta tell ya that I don't it's faulty components...sounds like faulty installation to me...whaddya think? You said you did yourself right? I don't think that that many parts could be faulty at once. The only thing common to your description is the installer....hmmm... that would be you right?
No, I did not install the suspension. I do not have all the tools or space to do it myself. Two defective struts are not a lot of parts, and being that they were produced at the same time, why is it not foreseeable that they could both be problems.

To clarify, all of the parts I replaced were replaced for performance reasons. Not because they were broken. When the struts were installed last year (June 2008) I made sure I replaced the strut bearings with them (because that's what you're supposed to do). Other items like tie rods and control arms were original with the car. They had over 80,000 miles on them at the time and needed replacing. With that said I replaced them last month to tighten the steering and bring back control and handling to the car.

If the installation was faulty, do you honestly think I could have driven 13 months and 9,000+ miles before there was a problem? No, if there was a problem with the installation it would have been apparent from the beginning. Also, the components only install one way. It's damn near impossible to botch it but I'll get to that later.

On the other hand, if there was a defect in the struts (produced at the same time during a production run) like the seal that isolates the piston rod from the compression tube. Is it not reasonable that they would have had problems from the start but I wouldn't have noticed until they finally failed?

I purchased the suspension from Turner Motorsport in Amesbury, Mass. They are a BMW specialist and the struts, shocks and springs were a package deal. It took them three business days to reimburse me for my struts because they were able to see that there was an inherit defect in their construction. Do you think they would give me my money back if they thought I screwed them up? I can guarantee you they wouldn't.

Finally, I'm going to address the installation matter of this. My mechanic, sorry, my ASE master certified technician, a man who owns a heavily modified E34 BTW, who also happens to be a suspension specialist is by no means at fault for this. Not only did he make sure everything was set at the proper torque setting when I picked up the car, but he also had me drop it off a few days later after driving the car to make sure everything was still properly set. How did he do all of this? With a torque wrench on the ground and not on a lift. Once again, I can't emphasize enough that nothing on my car has been ghetto rigged and for some reason you still think to have this idea "I did something wrong" without any real evidence to back it up.

My car is not the only BMW with a modified suspension and it by far not the most modified nor will it ever be.

I did NOT install it, I did NOT break it, and it was proven beyond a reasonable doubt that the struts had a manufacturers defect both by Turner Motorsport and Bilstein of North America.

I take care of my car and I do not abuse it. I avoid potholes like the plague and this car rarely sees a rainy day. This situation was not a big deal and it's been over for quite some time now. No problems since, no worries, and the car handles great. Even better than it originally did when the struts were replaced last year.

I freaking wrote a novel and now I'm done.

PS, what did my problems have to do with the problems of the original poster? Nothing because I never had wheel shimmy/wobble.
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#21 (permalink) Old 07-04-2009, 07:39 PM
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OK fine, just offering suggestions but I find it hard to believe that you got 2 bad brand new (out of the box) strut cartridges...never heard of that before, ever in 30 years of this stuff. But if that's what you think is then you'll find out eventually I reckon...best of luck
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#22 (permalink) Old 07-05-2009, 09:26 PM
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and don't even start about your experience with turbo chargers and fuel injected computer controlled engines...this is a BMW site so back off....this stuff has been around for decades here.....
Sorry sled. I was quite sure I would be stepping on toes. Bruising ego's left and right. My bad. I was unaware of your experience level. That's cool that you have turbocharged the BMW's before. Did you use mega squirt to get your fuel system dialed just right? Just curious. Heard that's the way to go.

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#23 (permalink) Old 07-05-2009, 09:34 PM
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Originally Posted by silversled View Post
OK fine, just offering suggestions but I find it hard to believe that you got 2 bad brand new (out of the box) strut cartridges...never heard of that before, ever in 30 years of this stuff. But if that's what you think is then you'll find out eventually I reckon...best of luck
I had a hard time believing it too, but stranger things have happened before. But once Turner reimbursed me for having to purchase new replacement struts I accepted the fact that something was terribly wrong. Like I said, my problem was weeks ago so it's irrelevant to me at this point.
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#24 (permalink) Old 07-05-2009, 09:44 PM
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i didn't say I turbo charged a bmw at all....simply that I have experience with turbo chargers. actually you can't reasonably turbo charge any engine that was not so designed...but you know that of course.....but if I were to attempt to do so (which I wouldn't) I would certainly look into the mega squirt, as you mention...however, after thinking about this...seems to me like you're a jacker eh? you like to play with stuff on cars cavelierly...that kind of stuff must be very carefully thought out prior to application on cars that have already been very carefully thought out....a chevy or a ford, yeah you can screw around with those because they where not thought out very well to begin with (junk)..watch the news, who's going out of business for producing junk for decades? ...not BMW and Porsche and Mercedes and Audi and so forth..no...they have already been thought out enough and any misguided attempt to make them 'better' without tall cash and alot of experience will only screw them up...if you know what I'm saying here....you do see this right?
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#25 (permalink) Old 07-06-2009, 09:09 PM
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but the fact is, this all bar talk, what's important is that you get this thing straightend out and can enjoy your car once again right? Best of luck..Cliff
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#26 (permalink) Old 07-08-2009, 08:40 PM
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oh my! ........ Great thread!
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#27 (permalink) Old 07-08-2009, 09:57 PM
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yeah, I could see how you could see that...it is rather lively isn't it? Well, there is nothing more valid than intelligent discussion is there? This is my desire, nothing more nor nothing less....I reckon...yuck, yuck yuck...just trying to help those in current need as best I can, knowing well that some day, I will need help myself...let us not cast stones needlessly so say I. Cliff
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#28 (permalink) Old 07-13-2014, 03:46 PM
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I am also having a terrible wheel shimmy. Mine comes on slightly at 45, then progresses till 55. I have to stay between 55-60 or the wheel shakes like crazy.
Or keep at 40 or below.
I have installed new lower control arm bushings and ball joints as an assembly. I also installed a rack from partgeek.com (which seems to have a bit of play on the inner tie rods where they connect i side the rack.)
Its also very hard to turn the wheel when still. I took off the power steering belt to see if anything changed, and it did not. I suspect my rack was rebuilt wrong a d they want me to pay for return shipping??!!
Look into your rack for play. You may have a bad one as well.
Oh, and dont use parts geek. Im going to buy mine from pelican or world pak.
Let us know what you find out.

And can we stop with the childish bantering? It makes you look very foolish. And downright childish. There is no reason to attack the OP from a legitimate question he had about his car. There was no reason to go on the attack. Thats the internet for ya. Luckily tnere are more decent people on the forums than asses. Otherwise no one would bother posting for fear of being attacked and belittled over legitimate questions and or concerns. Lets all try and act like grown ups ok?.....
Yes. I see that this is an old post. But I figured I would try and find the answer to the shimmy.

Last edited by Mad Tiki; 07-13-2014 at 04:05 PM.
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