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Old 12-16-2019, 04:40 PM
JoeyMcMahon666 JoeyMcMahon666 is offline
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Hit NASTY Pothole

So I hit, most likely a 4-6 inch deep pothole, and now I have a steering wheel vibration between 50-60mph only. If I go faster it goes away. What could it be? I don’t see any damage at all. Car still drives straight and no clunking.


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  #2  
Old 12-16-2019, 05:17 PM
John MS John MS is offline
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Bent wheel, damaged tire or balance weight knocked off. Best to have it looked at.
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Old 12-16-2019, 07:04 PM
JoeyMcMahon666 JoeyMcMahon666 is offline
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That’s what I thought also, I am this week. Thank you


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Old 12-18-2019, 08:31 PM
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dwlink dwlink is offline
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Vibrations in the 50-60 mph range are typically tire/wheel issues. While that speed range depends on a few other factors as it pertains to the suspension, typically the damped frequency of the struts (or springs+shocks) on most cars coupled with the mass of the brake/wheel/tire assembly matches the frequency at which your tires make a complete revolution.

If there is a mass imbalance with the tire/wheel you now have a forcing function on your suspension that is near its damped frequency resulting in amplified vibrations. If there is a geometric deformity in the tire or wheel you may feel it at all speeds. The mass imbalance issue gets worse at high speeds due to inertial forces (centrifugal force in this case) and peaks in the situation described above - at least in terms of the transmission of forces back into the chassis.
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Old 12-18-2019, 08:43 PM
Autoputzer Autoputzer is offline
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You most likely need an alignment, too. Alignments are cheaper than tires.
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Old 12-19-2019, 05:40 AM
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Originally Posted by John MS View Post
Bent wheel, damaged tire or balance weight knocked off. Best to have it looked at.
could be any or all of these. Take it to your tire shop.
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Old 12-19-2019, 07:36 AM
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You most likely need an alignment, too. Alignments are cheaper than tires.
LOL. One might know what one is getting when buying tires. Buying an ‘alignment’ is buying a pig in a poke and lunch beers for the shop.
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Old 12-19-2019, 08:21 AM
Autoputzer Autoputzer is offline
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LOL. One might know what one is getting when buying tires. Buying an ‘alignment’ is buying a pig in a poke and lunch beers for the shop.
Yeah, you have to get a "before" and "after" print out with an alignment. If not, you probably have that pig in a poke and lunch beers.

I hit a big hole last year, requiring an alignment. 5k miles later, I needed another one due to excessive rear tire wear (detected early with my digital tread depth gauge with resolution to 0.001"). I didn't hit anything since the first alignment, and I'm the only one driving the car. I'm worried that there's a torn bushing in the right-rear. I have one or maybe two more 5k miles stints on these tires to figure out the problem before I pay $1300 for new tires.

The center points of my F10's alignment spec's are toe-in of 0° 5' in the front, and 0° 9' in the back. The outside wear caused by toe-in is mitigated by the negative camber, at least with a square set-up and tire rotation. The center points of my camber spec's are -0° 29' in the front and -1°50' in the back. When my car was new and presumably with the alignment spec's all right in the center of their windows, the tires wore almost perfectly even.
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Old 12-20-2019, 10:35 AM
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Didn't hit that pothole while testing out your new SprintBooster, did you?
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Old 12-20-2019, 10:37 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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I don’t have one ***129315;


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  #11  
Old 12-22-2019, 10:29 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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*pothole update*

So, the feedback was the rim is bent? However you cannot find any bends. My shop put it on a balance machine and put the weights where it needed to be. Also my inner tie rod has very little play/clicking sound, I have replaced the part even before I hit the pothole. So the pothole has nothing to do with that. The only thing I notice is the steering wheel is slightly off center. My question is, could I go ahead and do the alignment with slight “play/clicking” in inner tie rod? I’m pretty annoyed a brand new part was defective the moment it was replaced. I honestly think she just needs an alignment. You guys can chime in. Don’t troll or I will block you.


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Old 12-22-2019, 11:41 AM
John in VA John in VA is offline
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No - based on the info you provided we suggested the wheel might be bent & to get it & your suspension checked. What about the tire itself - any evidence of belt separation? Did they use roadforce to balance it?

You shouldn't have any play in parts that aren't supposed to have compliance. Was the tie rod defective out of the box or installed improperly? If the steering wheel was centered before the impact, something has changed. You say it needs an alignment, just as the pedal gizmo is going to fix your other issue - so why ask us?

Maybe you need a second opinion at another shop. Good luck!

P.S. You could have tacked this onto your other pothole thread - no need for a new thread for your every thought.
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Last edited by John in VA; 12-22-2019 at 11:43 AM.
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Old 12-22-2019, 11:43 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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I did throttle reset car is good again, BMS Pedal Tuner will help. And yeah that is what I’m going to do...


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Old 12-22-2019, 06:47 PM
John MS John MS is offline
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Stream of consciousness posting makes it difficult for us to give you any help. Please try to organize your thoughts.
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  #15  
Old 12-23-2019, 05:06 AM
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Quote:
Originally Posted by JoeyMcMahon666 View Post
So, the feedback was the rim is bent? However you cannot find any bends. My shop put it on a balance machine and put the weights where it needed to be. Also my inner tie rod has very little play/clicking sound, I have replaced the part even before I hit the pothole. So the pothole has nothing to do with that. The only thing I notice is the steering wheel is slightly off center. My question is, could I go ahead and do the alignment with slight “play/clicking” in inner tie rod? I’m pretty annoyed a brand new part was defective the moment it was replaced. I honestly think she just needs an alignment. You guys can chime in. Don’t troll or I will block you.


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Why start a new thread? Just post the update in the original thread.
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Old 12-23-2019, 05:32 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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Can’t find it


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  #17  
Old 12-24-2019, 06:25 AM
Ol' Fart Ol' Fart is offline
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Front end alignment should straighten out the crooked steering wheel if they do it right.
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  #18  
Old 12-24-2019, 07:18 AM
John in VA John in VA is offline
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Quote:
Originally Posted by JoeyMcMahon666 View Post
Can’t find it
Click on your name (in bold) at the top left of a post - you'll be able to go to all your posts or all threads you started, etc.

Your original pothole post:
https://www.bimmerfest.com/forums/sh....php?t=1359681
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Old 12-25-2019, 04:48 PM
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Threads merged. Please do not create multiple threads on the same subject. Thank you.
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Old 12-30-2019, 07:03 AM
JoeyMcMahon666 JoeyMcMahon666 is offline
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I appreciate it thank you


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