 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / BMW Cars / March 2006Wheel Shimmy redux
I am experiencing slight shimmy in a brand new 525 in the 60-70mph range. Should I expect this to settle in or should I wrap the car around the dealer's head? >I am experiencing slight shimmy in a brand new 525 in the 60-70mph range. > Should I expect this to settle in or should I wrap the car around the > dealer's head? Neither. Take it back and ask them to fix it. It should be as smooth as silk assuming the road is conducive to that. Agreed. If its brand new it should ride like a dream. Take it back and have it fixed. -Brandenn >>I am experiencing slight shimmy in a brand new 525 in the 60-70mph range. >> Should I expect this to settle in or should I wrap the car around the >> dealer's head? > > Neither. Take it back and ask them to fix it. > It should be as smooth as silk assuming the road is conducive to that. > I am experiencing slight shimmy in a brand new 525 in the 60-70mph range. > Should I expect this to settle in or should I wrap the car around the > dealer's head? go back and get the wheels balanced  Signature-Fred W > > I am experiencing slight shimmy in a brand new 525 in the 60-70mph > > range. Should I expect this to settle in or should I wrap the car > > around the dealer's head? > go back and get the wheels balanced New cars are usually supplied with higher spec tyres than the ones you buy later so don't need balancing from new. Signature*Proofread carefully to see if you any words out or mispeld something * Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >>>I am experiencing slight shimmy in a brand new 525 in the 60-70mph >>>range. Should I expect this to settle in or should I wrap the car [quoted text clipped - 4 lines] > New cars are usually supplied with higher spec tyres than the ones you buy > later so don't need balancing from new. Nonsense. Signature-Fred W > > New cars are usually supplied with higher spec tyres than the ones you > > buy later so don't need balancing from new. > Nonsense. I'd suggest you look at new 'decent' makes in the showroom and see just how many have balance weights fitted. None - in the case of BMW. They require the makers to supply tyres - and wheels - already within balance tolerance. Aftermarket tyres - even of the same make - can be regarded as seconds. Signature*Born free...Taxed to death. Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. "Dave Plowman (News)" <dave@davenoise.co.uk> >> > New cars are usually supplied with higher spec tyres than the ones you >> > buy later so don't need balancing from new. [quoted text clipped - 5 lines] > require the makers to supply tyres - and wheels - already within balance > tolerance. That is certainly not the case - I must agree with Fred on this one. My '01 330xi certainly had balance weights when new. Further, the OEM Conti Sport Contacts certainly aren't the best tire available, unless you want to consider long life (~40K miles) "better". Every new car I've purchased - Chrysler, Toyota, BMW, Porsche - has had cheaper and lower performing tires than are available on the aftermarket. It's clearly the car manufacturers attempting to keep overall prices low that drives this. The only exceptions to this I know of are some very high performce cars - Porsche Turbo, Ferrari, Honda NSX, etc. > Aftermarket tyres - even of the same make - can be regarded as seconds. Absolute bullocks, Dave. FloydR > > I'd suggest you look at new 'decent' makes in the showroom and see > > just how many have balance weights fitted. None - in the case of BMW. > > They require the makers to supply tyres - and wheels - already within > > balance tolerance. > That is certainly not the case - I must agree with Fred on this one. > My '01 330xi certainly had balance weights when new. Further, the > OEM Conti Sport Contacts certainly aren't the best tire available, unless > you want to consider long life (~40K miles) "better". I'm not talking about different brands of tyres, but the *selection* of the same make sent to the factory for fitting to new cars. > Every new car I've purchased - Chrysler, Toyota, BMW, Porsche - has had > cheaper and lower performing tires than are available on the > aftermarket. It's clearly the car manufacturers attempting to keep > overall prices low that drives this. The only exceptions to this I know > of are some very high performce cars - Porsche Turbo, Ferrari, Honda > NSX, etc. > > Aftermarket tyres - even of the same make - can be regarded as seconds. > Absolute bullocks, Dave. Have it your own way. Has it not occurred to you that tyres of the same make sometimes need more balancing than others - or not at all? Signature*Why do we say something is out of whack? What is a whack? * Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. > Floyd Rogers <fbloogyudsr@hotmail.com> wrote: >> Absolute bullocks, Dave. > > Have it your own way. Has it not occurred to you that tyres of the same > make sometimes need more balancing than others - or not at all? Have you ever noticed that tires made in the same plant, in the same manufacturing batch, on the same day and hour, need different weights to be balanced (even upon the same rim?) Why do racing tires have balance weights (http://www.thatsracin.com/mld/thatsracin/sports/motorsports/nascar/series/nextel _cup/qa_forum.html?forumId=843&mode=display&action=&type=list&pageNo=2)? Why did both sets of OEM tires/wheels that I have for my 330xi (I have a set of 325i sport package wheels/tires: Michelin MXM 225/45 on 17x75 in addition to the original rims) have weights? I think you should go and look for the stick-on weights at your local dealership, before you continue this discussion. FloydR > > Have it your own way. Has it not occurred to you that tyres of the same > > make sometimes need more balancing than others - or not at all? > Have you ever noticed that tires made in the same plant, in the same > manufacturing batch, on the same day and hour, need different weights [quoted text clipped - 4 lines] > a set of 325i sport package wheels/tires: Michelin MXM 225/45 on 17x75 > in addition to the original rims) have weights? > I think you should go and look for the stick-on weights at your > local dealership, before you continue this discussion. I have done. Is it outside your comprehension that having to balance tyres adds to the cost of a vehicle? And that car makers who buy them by the thousand can demand better tolerances than when you buy a set as replacements? Signature*Two wrongs are only the beginning * Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. I've seen balance wieghts on brand new cars that cost FAR more than the one's we favor. Tires are tires and the way they are produced ensures that they are always slightly different from the one before it. Most tire fitters prefer the stick on weights to keep them out of site on the back side of the wheel. >> > Have it your own way. Has it not occurred to you that tyres of the same >> > make sometimes need more balancing than others - or not at all? [quoted text clipped - 15 lines] >thousand can demand better tolerances than when you buy a set as >replacements? > I'd suggest you look at new 'decent' makes in the showroom and see just > how many have balance weights fitted. None - in the case of BMW. They > require the makers to supply tyres - and wheels - already within balance > tolerance. > > Aftermarket tyres - even of the same make - can be regarded as seconds. I call bull. My 2004 BMW didn't have those ugly hammer-on balancing weights that you can readily see. But it DID have less the intrusive looking balancing weights on the interior of the wheels. > I call bull. > My 2004 BMW didn't have those ugly hammer-on balancing weights that you > can readily see. Proper balancing may require weights fitted other than in the middle of the wheel. > But it DID have less the intrusive looking balancing weights on the > interior of the wheels. Could be to balance the wheels rather than the tyres. Signature*We have enough youth, how about a fountain of Smart? Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >>I call bull. >>My 2004 BMW didn't have those ugly hammer-on balancing weights that you [quoted text clipped - 7 lines] > > Could be to balance the wheels rather than the tyres. Yeah, that's it Dave. The tires are balanced to perfection but the wheels can't be manufactured within tolerance without stick-on weights. You are too funny... Do you ever admit it when you are wrong? Signature-Fred W "Fred W" <Malt_Hound@*spam-me-not*yahoo.com> wrote > You are too funny... > > Do you ever admit it when you are wrong? Occasionally, but he's gone off the deep end before. FloydR > > Could be to balance the wheels rather than the tyres. > Yeah, that's it Dave. The tires are balanced to perfection but the > wheels can't be manufactured within tolerance without stick-on weights. Depending on the design of wheel some do have added on weights to achieve balance. > You are too funny... > Do you ever admit it when you are wrong? So you think all tyres are made to such a poor tolerance they *all* have a significant balance error? And not that they vary? If they all had the same balance error it would be simple to balance them. But they vary between 'perfect' to large errors, and the car makers get the best of them to cut down on manufacturing costs. When you buy replacements you're getting the left overs... Signature*I almost had a psychic girlfriend but she left me before we met * Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. Give it up Dave, tires are mass produced in molds and once they are removed from the mold they go through an intense QA inspection that mostly consists of "it looks like a good one" before it's piled up with the rest of them. I can PROMISE you that the manufacturer does not check the balance of the tire to determine who gets it. As for the claim made that replacement tires are seconds (I'm not sure if that was your statement), that's total crap. The manufacturers get whatever tires they are sent. High dollar performance tires may be a little better but there's no guaranties there either. >> > Could be to balance the wheels rather than the tyres. > [quoted text clipped - 14 lines] >to cut down on manufacturing costs. When you buy replacements you're >getting the left overs... > Give it up Dave, tires are mass produced in molds and once they are >removed from the mold they go through an intense QA inspection that [quoted text clipped - 5 lines] >tires they are sent. High dollar performance tires may be a little >better but there's no guaranties there either. IIRC, the main reason tyres (tires) need balancing is because of the steel mesh used in their construction. The mesh is wound round the part finished tyre for a few layers and then cut. As the start of this mesh spiral and end of this mesh spiral are very rarely directly in line which each other, there are always a few millimetres where one patch of the tyre has one more, or one less layer of steel mesh. Which obviously makes the tyre slightly off balance. Dodgy. SignatureMUSHROOMS ARE THE OPIATE OF THE MOOSES > IIRC, the main reason tyres (tires) need balancing is because of the > steel mesh used in their construction. The mesh is wound round the [quoted text clipped - 5 lines] > > Dodgy. Of course, back in the days before belted tires (steel or otherwise), balancing was just as necessary. The only difference I recall was that an unbalanced tire/wheel resulted in a steering shimmy between 35~45 mph, not at the higher speeds we find today. Tom K. > Fred W <Malt_Hound@*spam-me-not*yahoo.com> wrote: >> Do you ever admit it when you are wrong? [quoted text clipped - 5 lines] > to cut down on manufacturing costs. When you buy replacements you're > getting the left overs... Although OE tires are marked to enable balancing with fewer weights, they are not perfect. Here's an article at tirerack.com: http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=17. Note the paragraph: "Original Equipment (OE) tire suppliers are required to mark the tire's "high point" while OE wheel manufacturers mark the wheel's "low point." This helps the vehicle manufacturer match mount combinations that maximize new car ride quality while reducing the amount of balancing weight." Here's another quote from the website of machines used to test tires in manufacturers' plants from http://www.gsp9700.com/pub/technical/4202T/5THEO004.cfm "Most tire service professionals and factory service manuals agree that residual static imbalance should not exceed .30 oz. on average size wheels and .60 oz. on larger light duty truck wheels." It's quite clear from a cursory examination of web sources (best google is "Radial Force Variation" - include the quotes) that your assertion that OEM tires are "perfect" and after-market tires are "lower-quality" is without basis in fact. FloydR > It's quite clear from a cursory examination of web sources (best google > is "Radial Force Variation" - include the quotes) that your assertion > that OEM tires are "perfect" and after-market tires are "lower-quality" > is without basis in fact. I said no such thing - just that the car makers get the better *balanced* tyres. And my information came from a very high placed engineer who works for a tyre maker. And I'll take his word regardless of what's said here. Signature*Support bacteria - they're the only culture some people have * Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. > So you think all tyres are made to such a poor tolerance they *all* have a > significant balance error? And not that they vary? If they all had the > same balance error it would be simple to balance them. But they vary > between 'perfect' to large errors, and the car makers get the best of them > to cut down on manufacturing costs. When you buy replacements you're > getting the left overs... Methinks you have that backwards, Dave. There's a lot more replacement tires (tyres) sold each year than those supplied for new cars. RCE > > So you think all tyres are made to such a poor tolerance they *all* > > have a significant balance error? And not that they vary? If they all > > had the same balance error it would be simple to balance them. But > > they vary between 'perfect' to large errors, and the car makers get > > the best of them to cut down on manufacturing costs. When you buy > > replacements you're getting the left overs... > Methinks you have that backwards, Dave. > There's a lot more replacement tires (tyres) sold each year than those > supplied for new cars. True - but not bought in the quantities the car maker does - who can therefore demand the best selection, balance wise. Unless you think there are no quality control checks on tyres after they are made. Signature*Eat well, stay fit, die anyway Dave Plowman dave@davenoise.co.uk London SW To e-mail, change noise into sound. >> I call bull. >> My 2004 BMW didn't have those ugly hammer-on balancing weights that you [quoted text clipped - 7 lines] > > Could be to balance the wheels rather than the tyres. It is a heck of a lot easier to machine and manufacture wheels that don't require balancing on a production basis than tires. The tire contracts go to the lowest name brand bidder that can meet the basic specs for wear, traction and speed ratings. RCE |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2008 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.